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IEC Power Control
Overload Relays
Contents
Contents
Solid state overload relays
Thermal overload relays
3RU11 / 3RU21 overload relays up to 100 A
with screw connection, CLASS 10
Selection and ordering data
• Basic unit
• Accessories
Page
3/10
3/11
3/8-3/9
3/12-3/14
3/15
3/16-3/17
Description
Technical data
Circuit diagrams
Dimension drawings
3RB24 overload relays up to 630A
with IO-Link current monitoring
Selection and ordering data
• Basic unit
• Accessories
Description
Technical data
Page
3/51
3/55
3/52-3/53
3/58-3/62
TSolid state overload relays
h
3RB20/21, 3RB30/31
overload relays up to 630 A,
3RB20/30 CLASS 10 or 20
3RB21/31 CLASS 5, 10, 20, 30
Page
Selection and ordering data
• Basic Unit
3/22-3/23
• Accessories 3/11
Description
Cross Reference Aid
Technical data
Dimension drawings
Circuit diagrams
Siemens Industry, Inc.
Industrial Controls Catalog
3/18-3/19
3/21
3/24-3/28
3/30
3/31
3RB22/23 overload relays
up to 820 A for full motor
protection, CLASS 5 to
CLASS 30 adjustable
Page
Selection and ordering data
• Basic Unit
3/34-3/35
• Accessories 3/49-3/50
3UF7 SIMOCODE Pro
Motor management and
control devices
Description
Technical data
Dimension drawings
Circuit diagrams
Description
Technical data
Dimension drawing
3/47
3/40-3/43
3/45-3/46
3/47
Page
Selection and ordering data
• Basic Unit
3/69-3/72
• Accessories 3/73-3/76
3/63-3/68
3/77-3/78
3/79-3/82
3/1
OverloadRelays
Relays
Overload
• Revised •
04/20/15
General
General data
data
Overview
Features
7
General data
3RU21
Sizes
S00, S0, S2
Seamless
current range
0.11 ... 80 A
3RU11
S3
18 ... 100 A
3RB30/3RB31 3RB20/3RB21 3RB22/3RB23 3RB24
S00, S0, S2
S3 ... S12
S00 ... S12
0.1 ... 80 A
12.5 ... 630 A
0.3 ... 630 A
0.3 ... 630 A • Allows easy and consistent configuration
(up to 820 A)1) (up to 820 A)1) with one series of overload relays (for
small to large loads)
Protection functions
Tripping
due to
overload
S00 ... S12
Benefits
• Are coordinated with the dimensions, connections and technical characteristics of
the other devices in the SIRIUS modular
system (contactors, etc., ...)
• Permit the mounting of slim and compact
load feeders in widths of 45 mm (S00),
45 mm (S0), 55 mm (S2), 70 mm (S3),
120 mm (S6) and 145 mm (S10/S12); this
does not include the current measuring
modules for the 3RB22 to 3RB24 evaluation modules sizes S00 to S3
• Simplify configuration
• Provides optimum inverse-time delayed
protection of loads against excessive temperature rises due to overload
Tripping
due to phase
unbalance
• Provides optimum inverse-time delayed
protection of loads against excessive temperature rises due to phase unbalance
Tripping
due to phase
failure
• Minimizes heating of induction motors
during phase failure
Protection of
single-phase
loads
Tripping in the
event of
overheating
— 2)
— 2)
—
—
—
—
• Enables the protection of single-phase
loads
— 2)
— 2)
• Provides optimum temperature-dependent protection of loads against excessive
temperature rises e.g. for stator-critical
motors or in the event of insufficient coolant flow, contamination of the motor surface or for long starting or braking
operations
• Eliminates the need for additional special
equipment
• Saves space in the control cabinet
by
integrated
thermistor
motor protection function
• Reduces wiring outlay and costs
Tripping
in the event of
a ground fault
(only 3RB31)
• Provides optimum protection of loads
against high-resistance short circuits or
ground faults due to moisture, condensed
water, damage to the insulation material,
etc.
• Eliminates the need for additional special
equipment
(only 3RB21)
by
internal groundfault detection
(activatable)
Available
— Not available
3/2
7/72
Siemens IC 10 · 2012
• Saves space in the control cabinet
• Reduces wiring outlay and costs
1)
Motor currents up to 820 A can be recorded and evaluated by a current
measuring module, e.g. 3RB29 06-2BG1 (0.3 to 3 A), in combination with a
3UF18 68-3GA00 (820 A/1 A) series transformer.
2)
The SIRIUS 3RN thermistor motor protection devices can be used to provide additional temperature-dependent protection.
Siemens Industry, Inc.
Industrial Controls Catalog
IC10_07_08.fm Page 73 Monday, October 7, 2013 7:09 PM
Overload Relays
Overload Relays
General data
General data
Features
3RU21
3RU11
3RB30/3RB31 3RB20/3RB21 3RB22/3RB23 3RB24
RESET function
Remote RESET
function
• Allows manual or automatic resetting of
the device
(by means of (by means of
separate mod- separate module)
ule)
(only with
3RB31
and external
auxiliary voltage 24 V DC)
(only with
(electrically via (electrically
3RB21
external but- with button or
and external
via IO-Link)
ton)
auxiliary voltage 24 V DC)
TEST function
for auxiliary
contacts
TEST function
for electronics
• Allows the remote resetting of the device
• Allows easy checking of the function and
wiring
—
—
• Allows checking of the electronics
Status display
• Displays the current operating state
Large current
adjustment
button
• Makes it easier to set the relay exactly to
the correct current value
Integrated auxiliary contacts
(1 NO + 1 NC)
Integrated auxiliary contacts
(1 CO and 1 NO
in series)
Benefits
-(2 ×)
• Allows the load to be switched off if necessary
• Can be used to output signals
—
—
—
—
—
• Enables the controlling of contactors
directly from the higher-level control system through IO-Link
IO-Link
connection
—
—
—
—
—
• Reduction of wiring in the control cabinet
• Enables communication
Connection of
optional handheld device
—
—
—
—
—
• Enables local operation
Full starter
functionality
through IO-Link
—
—
—
—
—
• Enables in combination with the
SIRIUS 3RT contactors the assembly of
communication-capable motor starters
(direct-on-line, reversing and wye-delta
starting)
Reading out of
diagnostics
functions
—
—
—
—
—
• Enables the reading out of diagnostics information such as overload, open circuit,
ground fault, etc.
Reading out of
current values
—
—
—
—
—
• Enables the reading out of current values
and their direct processing in the higherlevel control system
Reading out all
set parameters
—
—
—
—
—
• Enables the reading out of all set parameters, e.g. for plant documentation
Communication capability through IO-Link
Available
— Not available
3/3
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Industrial Controls Catalog
Siemens IC 10 · 2012
7
Features
IC10_07_08.fm Page 74 Monday, October 7, 2013 7:09 PM
Overload Relays
Overload Relays
• Revised •
04/20/15
General data
SIRIUS
General data
Features
3RU21
Design of load feeders
3RU11
3RB30/3RB31 3RB20/3RB21 3RB22/3RB23 3RB24
Benefits
Short-circuit
strength up to
100 kA
at 690 V
(in conjunction
with the corresponding fuses
or the corresponding motor
starter protector)
• Provides optimum protection of the loads
and operating personnel in the event of
short circuits due to insulation faults or
faulty switching operations
1)
7
Electrical and
mechanical
matching to
3RT contactors
Straightthrough transformers for
main circuit2)
(in this case the
cables are
routed through
the feed-through
openings of the
overload relay
and connected
directly to the
box terminals of
the contactor)
Spring-type
connection system for main circuit2)
—
(S00, S0)
—
—
(S2)
(S00, S0)
1)
(S3 ... S6)
(S00 ... S6)
(S00 ... S6)
—
—
—
Spring-type
connection system for auxiliary
circuits2)
Ring terminal
lug connection
method for main
and auxiliary
circuits2)
• Simplifies configuration
• Reduces wiring outlay and costs
• Enables stand-alone installation as well as
space-saving direct mounting
• Reduces the contact resistance
(only one point of contact)
• Saves wiring costs
(easy, no need for tools, and fast)
• Saves material costs
• Reduces installation costs
• Enables fast connections
• Permits vibration-resistant connections
• Enables maintenance-free connections
• Enables fast connections
• Permits vibration-resistant connections
• Enables maintenance-free connections
(S00, S0)
—
—
—
—
—
• Enables fast connections
• Permits vibration-resistant connections
• Enables maintenance-free connections
Full starter
functionality
through IO-Link
—
—
—
—
—
• Enables in combination with the
SIRIUS 3RT contactors the assembly of
communication-capable motor starters
(direct-on-line, reversing and wye-delta
starting)
Starter function
—
—
—
—
—
• Integration of feeders via IO-Link in the
control system up to 630 A or 820 A
Available
— Not available
3/4
1)
Exception: up to size S3, only stand-alone installation is possible.
2)
Alternatively available for screw terminals.
Siemens Industry, Inc.
Industrial Controls Catalog
IC10_07_08.fm Page 75 Monday, October 7, 2013 7:09 PM
SIRIUS
Overload Relays
Overload Relays
• Revised •
04/20/15
General data
General data
Features
Other features
3RU21
3RU11
3RB30/3RB31 3RB20/3RB21 3RB22/3RB23 3RB24
Temperature
compensation
Benefits
• Allows the use of the relays at high temperatures without derating
• Prevents premature tripping
• Allows compact installation of the control
cabinet without distance between the devices/load feeders
Very high longterm stability
—
—
Fixed trip class
CLASS 10
CLASS 10A
CLASS 10
Trip classes
adjustable on
the device
CLASS 5, 10, 20,
30
—
—
Low power loss
—
—
—1)
—1)
—
—
—
—
• Eliminates the need for configuration and
connecting an additional control circuit
—
—
—
—
• Indicates imminent tripping of the relay directly on the device due to overload,
phase unbalance or phase failure through
flickering of the LEDs or in the case of the
3RB24 as a signal through IO-Link
• Allows the imminent tripping of the relay to
be signaled
Internal power
supply
Supplied from
an external voltage through
IO-Link
Overload
warning
(1:4)
(1:4)
3RB30:
CLASS 10E or
CLASS 20E
3RB20:
CLASS 10 or
CLASS 20
3RB31:
(1:10)
(1:10)
• Minimize the configuration outlay and
costs
• Minimize storage overheads, storage
costs, tied-up capital
• Optimum motor protection for standard
starts
3RB21:
• Enables solutions for very fast starting motors requiring special protection
(e.g. Ex motors)
• Enables heavy starting solutions
• Reduces the number of versions
• Reduces energy consumption and energy
costs (up 98 % less energy is used than
for thermal overload relays).
• Minimizes temperature rises of the contactor and control cabinet – in some cases
this may eliminate the need for controlgear cabinet cooling.
• Direct mounting to contactor saves space,
even for high motor currents (i.e. no heat
decoupling is required).
—
—
• Eliminates the need for configuration and
connecting an additional control circuit
• Allows measures to be taken in time in the
event of inverse-time delayed overloading
of the load for an extended period over the
current limit
Analog output
—
—
—
• Allows the output of an analog output signal for actuating moving-coil instruments,
feeding programmable logic controllers or
transfer to bus systems
—
• Eliminates the need for an additional measuring transducer and signal converter
Available
— Not available
1)
SIRIUS 3RU11 and 3RU21 thermal overload relays use a bimetal contactor
and therefore do not require a control supply voltage.
3/5
Siemens Industry, Inc.
Industrial Controls Catalog
Siemens IC 10 · 2012
7
Wide setting
ranges
• Provides safe protection for the loads
even after years of use
in severe operating conditions
Overload Relays
Overload Relays
• Revised •
10/18/15
General data
SIRIUS
General data
Overview of overload relays – matching contactors
Overload
relays
Current
Current
measure- range
ment
Type
Type
A
Contactors (type, size, rating in HP)
3RT20 1.
3RT20 2.
3RT20 3.
3RT10 4. 3RT10 5.
3RT10 6.
3RT10 7 3TF68/
3TF69
S00
S0
S2
S3
S10
S12
3/5/7.5/10 5/7.5/10/15/20/25 30/40/50
S6
Size 14
50/60/70 100/125/150 150/200/250 300/400
500/700
SIRIUS 3RU21 thermal overload relays
3RU21 1
Integrated 0.11 … 16
3RU21 2
Integrated 1.8 … 40
—
—
3RU21 3
Integrated 22 … 80
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3RU21
SIRIUS 3RU11 thermal overload relays
3RU11 4
Integrated 18 … 10
—
3RU11
SIRIUS 3RB30 solid-state overload relays1)
Integrated 0.1 … 16
3RB30 2
Integrated 0.1 … 40
—
—
3RB30 3
Integrated 12 … 80
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
7
3RB30 1
3RB30
SIRIUS 3RB31 solid-state overload relays1)
3RB31 1
Integrated 0.1 … 16
3RB31 2
Integrated 0.1 … 40
—
—
—
—
3RB31 3
Integrated 12 … 80
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3RB31
SIRIUS 3RB20 solid-state overload relays1)
3RB20 4
Integrated 12.5 … 100
3RB20 5
Integrated 50 … 200
3RB20 6
Integrated 55 … 630
3RB20 1 + Integrated 630 … 820
3UF18
—
3RB20
SIRIUS 3RB21 solid-state overload relays1)
3RB21 4
Integrate
3RB21 5
d 50 … 200 0
Integrated
12.5 … 10
3RB21 6
Integrated 55 … 630
3RB21 1 + Integrated 630 … 820
3UF18
—
—
3RB21
Can be used
— Cannot be used
1)
"Technical Specifications" for use of the overload relays with trip class
≥ CLASS 20 can be found in "Short-circuit protection with fuses for motor
feeders",
3/6
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Siemens IC 10 · 2012
7/77
Overload Relays
Overload Relays
SIRIUS
• Revised •
10/18/15
General data
General data
Overview of overload relays – matching contactors (continued)
Overload
relays
Current
measurement
Current
range
Type
Type
A
Contactors (type, size, rating in HP)
3RT20 1
3RT20 2
3RT20 3
3RT10 4
3RT10 5
3RT10 6
3RT10 7
3TF68/
3TF69
S00
S0
S2
S3
S6
S10
S12
Size 14
3/5/7.5/1.
5/7.5/10/15/
20/25
30/40/50
50/60/75
100/125/150 150/200/250 300/400
SIRIUS 3RB22 to 3RB24 solid-state overload relays1)
3RB29 0
0.3 … 25
3RB29 0
10 … 100
3RB22 83/
3RB23 83/ 3RB29 5
3RB24 83+ 3RB29 6
20 … 200
63 … 630
3RB29 0 + 630 … 820
3UF18
—
—
500/700
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
7
3RB22, 3RB23
3RB24
Can be used
— Cannot be used
1)
"Technical Specifications" for use of the overload relays with trip class
≥ CLASS 20 can be found in "Short-circuit protection with fuses for motor
feeders",
Connection methods
Depending on the device version of the 3RU2 and 3RB3 overload relays, the terminals for screw terminals, spring-type terminals or ring terminal lug connection are configured for both the
main and auxiliary circuit in frame sizes S00 and S0.
The 3RU11 thermal overload relays come with screw terminals.
The electronic overload relays 3RB20 and 3RB21 are available
with screw terminals (box terminals) or spring-type terminals on
the auxiliary current side; the same applies for the evaluation
modules of the 3RB22 to 3RB24 electronic overload relays for
High-Feature applications.
3/7
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Siemens IC 10 · 2012
Overload Relays
SIRIUS
Thermal Overload Relays
3RU11, 3RU21 up to 100 A,
CLASS 10
Description
The 3RU thermal overload relays can protect your loads from
overload and phase failure. You
must implement short-circuit
protection (see "Short-circuit
protection") by means of a fuse
or circuit-breaker.
The 3RU thermal overload relays are environmentally friendly
3/8
(see "Environmental considerations") and comply with all the
main international standards
and approvals (see "Specifications" and "Increased safety type
of protection EEx").
The accessories for the 3RU
thermal overload relays have
been designed on the principle
that all requirements are covered by a small number of variants.
Application
The 3RU thermal overload relays are designed for the protection of three-phase and singlephase AC and DC motors.
If single-phase AC or DC loads
are to be protected using 3RU
thermal overload relays, all three
bimetal strips should be heated.
Therefore all main circuits of the
relay must be connected in series.
NSB0_02075a
The 3RU thermal overload relays up to 100 A are designed for
current-dependent protection of
applications with normal start-up
conditions (see "Trip classes")
against impermissibly high rises
in temperature as a result of
overload or phase failure (see
"Phase failure protection"). An
overload or phase failure causes
the motor current to rise above
the set rated motor current (see
"Setting"). This current rise heats
up the bimetal strips within the
relay via heating elements
which, in turn, operate the auxiliary contacts via a tripping
mechanism due to their deflection (see "Auxiliary contacts").
These switch the load off via a
contactor. The switch-off time is
dependent on the ratio of tripping current to operational current Ie and is stored in the form of
a tripping characteristic with
long-term stability (see "Tripping
characteristics"). The "Tripped"
state is signalled by means of a
switching position indicator (see
"Indication of status").
Resetting takes place manually
or automatically (see "Manual
and automatic resetting") after a
recovery time has elapsed (see
"Recovery time").
The 3RU thermal overload relays are electrically and mechanically optimised to the 3RT
contactors such that, in addition
to individual mounting, they can
also be directly mounted onto
the contactors to save space
(see "Design and mounting").
The main and auxiliary circuits
can be connected in various
ways (see "Connection"), including the use of Cage Clamp terminals. When the overload relay
has been connected, it can be
tested for correct functioning using a TEST slide (see "TEST
function"). In addition to the
TEST function, the 3RU thermal overload relay is equipped
with a STOP function (see "STOP
function").
For a wide variety of application
possibilities for the 3RU thermal
overload relay, please refer to
the sections "Application",
"Ambient conditions", “Overload
relays in WYE-delta combinations" and "Operation with frequency converters".
Connection for mounting onto contactors:
Optimally adapted in electrical, mechanical and design terms to the
contactors. The overload relay can be connected directly to these
contactor using these pins. Stand-alone installation is possible as
an alternative (in conjunction with a terminal bracket for stand-alone
installation).
Overload relays in WYE-delta
combinations
When overload relays are used
in WYE-delta combinations, it is
important to note that only 1/√3
of the motor current flows
through the mains contactor. An
overload relay mounted on the
main contactor must be set to
0.58 times the motor current.
A second overload relay must be
mounted on the star contactor if
your load is also to be optimally
protected in WYE operation. The
WYE current is 1/3 of the rated
motor current. The relevant relay
must be set to this current.
Selector switch for manual/automatic RESET and RESET button:
Control circuit
An additional power supply is
not required for operation of the
3RU thermal overload relays.
A sealable transparent cover can be optionally mounted
(accessory). It secures the motor current setting against
adjustment.
Ambient conditions
The 3RU thermal overload relays are temperature compensating according to IEC 60 9474-1/DIN VDE 0660 Part 102 in
the temperature range –20 °C to
+60 °C. For temperatures from
+60 °C to +80 °C, the upper setting value of the setting range
must be reduced by a specific
factor as given in the table below.
Ambient
temperature
in °C
Reduction factor
for the upper setting value
+60
1.0
+65
0.94
+70
0.87
+75
0.81
+80
0.73
With this switch you can choose between manual and automatic
RESET. A device set to manual RESET can be reset locally by
pressing the RESET button. A remote RESET is possible using the
RESET modules (accessories), which are independent of size.
Switch position indicator and TEST function of the wiring:
Indicates a trip and enables the wiring test.
Motor current setting:
Setting the device to the rated motor current is easy with the large
rotary knob.
STOP button:
If the STOP button is pressed, the NC contact is opened. This
switches off the contactor downstream. The NC contact is closed
again when the button is released.
Supply terminals:
Depending on the device version, the terminals for screw,
spring-type or ring lug terminal connection are configured for the
main and auxiliary circuit.
3RU21 26-4FB00 thermal overload relays
Trip classes
The 3RU thermal overload relay is available for normal startup conditions in CLASS 10. For
further details about trip classes,
see "Tripping characteristics".
Tripping characteristics
The tripping characteristics
show the relationship between
the tripping time and the tripping
current as a multiple of the operational current Ie and are specified for symmetrical three-pole
and two-pole loading from cold.
The smallest current at which
tripping occurs is called the limiting tripping current. In accordance with IEC 60 947-4-1/
DIN VDE 0660 Part 102, this
must lie within certain specified
limits. The limits of the limiting
tripping current lie, in the case of
the 3RU11 thermal overload re-
lay for symmetrical three-pole
loading between 105 % and
120 % of the operational current.
Starting from the limiting tripping
current, the tripping characteristic moves on to larger tripping
currents based on the characteristics of the so-called trip
classes (CLASS 10, CLASS 20
etc.). The trip classes describe
time-intervals within which the
overload relay must trip with 7.2
times the operational current Ie
for symmetrical three-pole loading from cold.
The tripping times are:
CLASS
Tripping times
10A
2 s to 10 s
10
4 s to 10 s
20
6 s to 20 s
30
9 s to 30 s
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
Thermal Overload Relays
3RU11, 3RU21 up to 100 A,
CLASS 10
Description
This is the schematic representation of a characteristic. The characteristics
of the individual 3RU thermal overload relays can be requested from
Technical Assistance at the e-mail address:
[email protected]
Tripping time
10 000
100
min
60
40
ANSB00288
5000
s
2000
1000
10
500
5
200
2
1
100
3-pole
loading
50
20
10
2-pole
loading
5
2
1
0,6 0,8 1
2
3
4
The tripping characteristic of a
three-pole 3RU thermal overload relay (see characteristic for
symmetrical three-pole loading
from cold) is valid when all three
bimetal strips are loaded with the
same current simultaneously. If,
however, only two bimetal strips
are heated as a result of phase
failure, these two strips would
have to provide the force necessary for operating the release
mechanism and, if no additional
measures were implemented,
they would require a longer tripping time or a higher current.
These increased current levels
over long periods usually result in
damage to the consumer. To prevent damage, the 3RU thermal
overload relay features phase failure sensitivity which, thanks to an
appropriate mechanical mechanism, results in accelerated tripping according to the characteristic for two-pole loading from cold.
In contrast to a load in the cold
state, a load at operating temperature has a lower heat reserve. This
fact affects the 3RU thermal
overload relay in that following an
extended period of loading at operational current Ie, the tripping
time reduces by about a quarter.
Phase failure protection
The 3RU thermal overload relays feature phase failure protection (see "Tripping characteristics") for the purpose of minimizing
the heating of the load during single-phase operation as a result of
phase failure.
Siemens Industry, Inc.
Industrial Controls Catalog
6
8 10
15
20
30 40 A 60 80 x
Current
n
Setting
The 3RU thermal overload relay
is adjusted to the rated motor current using a rotary knob. The scale
of the rotary knob is calibrated in
Amperes.
Manual and automatic
resetting
It is possible to switch between
manual resetting and automatic
resetting by depressing and rotating the blue button (RESET button). When manual resetting is selected, a reset can be performed
directly on the device by pressing
the RESET button. Remote resetting can be implemented by using
the mechanical and electrical RESET modules from the range of accessories (see "Accessories").
When the blue button is set to Automatic RESET, the relay will be reset automatically.
A reset is not possible until the recovery time has elapsed (see "Recovery time").
Recovery time
After tripping due to an overload, it
takes a certain length of time for
the bimetal strips of the 3RU
thermal overload relays to cool
down. The relay can only be reset
once it has cooled down. This time
(recovery time) is dependent on
the tripping characteristic and the
level of the tripping current.
After tripping due to overload, the
recovery time allows the load to
cool down.
TEST function
Correct functioning of the ready
3RU thermal overload relay can
be tested with the TEST slide. The
slide is operated to simulate tripping of the relay. During this simulation, the NC contact (95-96) is
opened and the NO contact (9798) is closed whereby the overload relay checks that the auxiliary
circuit is wired correctly. When the
3RU thermal overload relay is
set to Automatic RESET, an automatic reset takes place when the
TEST slide is released. The relay
must be reset using the RESET
button when it is set to Manual
RESET.
Operation with frequency
converters
The 3RU thermal overload relays are suitable for operation with
frequency converters. Depending
on the frequency of the converter,
a current higher than the motor
current may have to be set due to
the occurrence of eddy currents
and skin effects.
STOP function
When the STOP button is pressed,
the NC contact is opened and the
series-connected contactor and
therefore the load is switched Off.
The load is reconnected via the
contactor when the STOP button
is released.
Specifications
The 3RU thermal overload relays comply with the requirements
of:
• IEC 60 947-1/
DIN VDE 0660 Part 100
• IEC 60 947-4-1/
DIN VDE 0660 Part 102
• IEC 60 947-5-1/
DIN VDE 0660 Part 200
• IEC 60801-2, -3, -4, -5 and
• UL 508/CSA C 22.2.
The 3RU11 thermal overload relays are also safe from touch according to DIN VDE 0106 Part 100
and climate-proof to IEC 721.
Status indication
The current status of the 3RU
thermal overload relay is indicated
by the position of the marking on
the "TEST function/switching position indicator" slide. The marking
on the slide is on the left at the "O"
mark following a trip due to overload or phase failure and at the "I"
mark otherwise.
Auxiliary contacts
The 3RU thermal overload relay
is equipped with an NO contact
for the tripped signal and an NC
contact for switching off the contactor.
Connection
All the 3RU thermal overload
relays have screw terminals for
the main and auxiliary circuits.
Once the box terminals have
been removed from the main
conductor connections of the
overload relays of size S3, it is
possible to connect busbars.
Alternatively the devices are
available with either spring loaded
or with ring lug terminals on both
the control and the main terminals.
For details of various connection
possibilities, see the "Technical
data" and "Selection and ordering
data".
Design and mounting
The 3RU thermal overload relays are suitable for direct mounting on the 3RT contactors. They
can also be mounted as single
units if the appropriate adapters
are used. For details of the
mounting possibilities, see the
"Selection and ordering data" and
the "Technical data".
Environmental considerations
The devices are manufactured
taking environmental considerations into account and comprise
environmentally-friendly and recyclable materials.
Degree of protection
"Increased safety" EEx
The 3RU thermal overload relay
meets the requirements for overload protection of motors of the
"Increased safety" type of protection EEx e IEC 50 019/
DIN VDE 0165, DIN VDE 0170,
DIN VDE 171.
KEMA test certificate number
Ex-97.Y.3235,
DMT 98 ATEX G001,
EN 50 019: 1977 + A1 ... A5,
Increased Safety "e": Appendix A,
Guideline for temperature monitoring of squirrel cage motors during operation.
Accessories
For the 3RU thermal overload
relay, there are:
• one adapter for each of the
four overload relay sizes S00 to
S3 for individual mounting
• one electrical remote RESET
module for all sizes in three
different voltage variants
• one mechanical remote RESET
module for all sizes
• one cable release for all sizes
for resetting inaccessible
devices
• terminal covers
The accessories can also be used
for the 3RB solid state overload relay.
3/9
Overload Relays
Thermal Overload Relays
SIRIUS
• Revised •
04/20/15
3RU11, 3RU21 up to 100 A,
CLASS 10
Selection and ordering data
Features and technical characteristics
• Auxiliary contacts: 1 NO + 1 NC
• Manual/automatic RESET
• Switching position indication
• CLASS 10
•
•
•
•
TEST function
STOP button
Phase failure sensitivity
Sealable cover: optional in S00, S0 & S2. Integrated in S3
†† Terminal Types II
•• Terminal Types I
Type
Mounting Type
Ltr
Type
Mounting Type
Ltr
Ordering information
• Replace the (••) with the letter
Number combination from the
Terminal types I table
• For description, see page 3/8
Screw
Direct to Contactor
B0
Screw
Direct to Contactor B0
• For technical data, see pages
3/12-3/15
Screw1)
Stand Alone
B1
Screw 4)
Stand Alone
• Replace the (…††) with the letter
Number combination from the
Terminal types II table
• For circuit diagrams, see page 3/15
Spring2)
Direct to Contactor
C0
Spring 3)
Direct to Contactor D0
Spring1) 2) Stand Alone
C1
Spring 3) 4) Stand Alone
Ring Lug Direct to Contactor
J0
3RU2116-1GB0
• For dimension drawings, see page
3/16-3/17.
3RU2116-1GC0
3RU2126-4NB0
Thermal Overload Relays up to 40A
Frame Size S00 and S0 ••
Setting
Range
Order No.
Setting
Range
D1
3RU1146-4DB0
Thermal Overload Relays up to 100A
Frame Size S2 and S3 ††
Order No.
A
A
3RU2136-4RB1
B1
Weight
approx.
(screw/
spring)
kg
Frame Size S00: For mounting directly to 3RT201 contactors
or for stand-alone installation
Setting
Range
Order No.
Setting
Range
Order No.
Weight
approx.
(screw/
spring)
kg
A
A
Frame Size S2: For mounting directly to 3RT203 contactors 4)
0.11 - 0.16
3RU2116-0A••
1.4 - 2
3RU2116-1B••
22 - 32
3RU2136-4E††
47 - 57
3RU2136-4Q††
0.14 - 0.2
3RU2116-0B••
1.8 - 2.5
3RU2116-1C••
28 - 40
3RU2136-4F††
54 - 65
3RU2136-4J††
0.18 - 0.25
3RU2116-0C••
2.2 - 3.2
3RU2116-1D••
36 - 45
3RU2136-4G††
62 - 73
3RU2136-4K††
3RU2136-4H††
70 - 80
3RU2136-4R††
0.13/0.15
0.34
0.22 - 0.32
3RU2116-0D••
2.8 - 4
3RU2116-1E••
40 - 50
0.28 - 0.4
3RU2116-0E••
3.5 - 5
3RU2116-1F••
Frame Size S3: For mounting directly to 3RT104 contactors 4)
0.35 - 0.5
3RU2116-0F••
4.5 - 6.3
3RU2116-1G••
0.45 - 0.63
3RU2116-0G••
5.5 - 8
3RU2116-1H••
0.55 - 0.8
3RU2116-0H••
7 - 10
3RU2116-1J••
0.7 - 1
3RU2116-0J••
9 - 12.5
3RU2116-1K••
28 - 40
3RU1146-4F††
70 - 90
3RU1146-4L††
3RU2116-4A•• 0.13/0.15
36 - 50
3RU1146-4H††
80 - 100
3RU1146-4M††
0.9 - 1.25
3RU2116-0K••
1.1 - 1.6
3RU2116-1A••
11 - 16
0.13/0.15
Frame Size S0: For mounting directly to 3RT202 contactors
or for stand-alone installation
1.8 - 2.5
3RU2126-1C••
11 - 16
3RU2126-4A••
2.2 - 3.2
3RU2126-1D••
14 - 20
3RU2126-4B••
2.8 - 4
3RU2126-1E••
17 - 22
3RU2126-4C••
3.5 - 5
3RU2126-1F••
20 - 25
3RU2126-4D••
4.5 - 6.3
3RU2126-1G••
23 - 28
3RU2126-4N••
5.5 - 8
3RU2126-1H••
27 - 32
3RU2126-4E••
7 - 10
3RU2126-1J••
30 - 36
3RU2126-4P••
9 - 12.5
3RU2126-1K••
34 - 40
3RU2126-4F••
3/10
0.16/0.22
18 - 25
3RU1146-4D††
45 - 63
3RU1146-4J††
22 - 32
3RU1146-4E††
57 - 75
3RU1146-4K††
0.55
1)
Not available for size S0 3RU212 with current setting range below 14 A.
2)
Size S00 and S0: main and auxiliary conductor terminals are spring-type.
3)
Size S2 and S3 auxiliary terminals are spring-type only. Main conductor
terminals are screw.
4)
3RU Overloads in S2 and S3 frame are available preassembled with a
terminal bracket for standalone mounting. S2 and S3 overloads can also
be customer assembled to the terminal bracket (see Accessories).
0.16/0.22
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
Accessories
• Revised •
04/20/15
3RU and 3RB
up to 100 A
Accessories
Design
for type
Order No.
Size
Terminal brackets for stand-alone installation 1)
Weight
approx
kg
Screw
terminals
S00
S0
S2
S3
3RU29 16-3AA01
3RU29 26-3AA01
3RU29 36-3AA01
3RU19 46-3AA01
0.04
0.05
0.18
0.28
Spring
Loaded
terminals
S00
S0
3RU29 16-3AC01
3RU29 26-3AC01
0.04
0.06
Resetting plunger, holder, and former overload reset adapter
S00 to S2
S3
0.038
0.038
Pushbuttons with extended stroke
IP 65 ∅ 22 mm, 12 mm hub
3RU29 00-1A
3RU19 00-1A
S00 to S3
3SB3000-0EA11
0.020
Extension plungers
For compensation of the distance bewteen the pushbutton and
the unlatching button of the relay
S00 to S3
3SX1 335
0.004
Complete mechanical reset assembly
S00 to S3
3SBES-RESET
S00 to S2
S00 to S2
S3
S3
3RU29 00-1B
3RU29 00-1C
3RU1900-1B
3RU1900-1C
0.063
0.073
0.063
0.073
3RU19 00-2AB71
3RU19 00-2AF71
3RU19 00-2AM71
0.066
0.066
0.066
For separate mounti ng of the overload relay;
panel mount or snapped onto
35 mm standard mounting rail,
size S3 also for 75 mm standard mounting rail
3RU29 36-3AA01
Mechanical RESET
with
pushbutton,
and reset
3RU19 00-1A extension
Cable release with holder for RESET
For drilled hole ∅ 6.5 mm
in the control panel
max. control panel thickness 8 mm
Length 400 mm
Length 600 mm
Length 400 mm
Length 600 mm
3RU19 00-1
Module for remote RESET, electrical
Operating range 0.85 to 1.1 × Us
Power consumption AC 80 VA, DC 70 W
ON period 0.2 s to 4 s
AC/DC 24 V to 30 V
AC/DC 110 V to 127 V
AC/DC 220 V to 250 V
S00 to S3
Cover for cable lug
and bar connection
S3
3RT19 46-4EA1
0.040
Cover for box terminals
S2
S3
3RT29 36-4EA2
3RT19 46-4EA2
0.020
0.025
3RV29 08-0P
0.100
3RA2908-1A
0.045
3RU19 00-2A.71
Terminal cover
3RT1946-4EA1
Sealable covers
For covering the rotary setting dials.
Order in multiples of 10.
S00 to S2
3RV29 08-0P
Tool for opening Spring Loaded terminal connections
Suitable up to a
For all SIRIUS devices with spring-type terminals
• Length: approx. 200 mm;
3.0 × 0.5 mm (green)
3RA2908-1A
1)
The accessories are identical to those of the 3RB30/3RB31 solid-state overload relays.
Siemens Industry, Inc.
Industrial Controls Catalog
3/11
Overload Relays
Thermal Overload Relays
SIRIUS
• Revised •
10/18/15
3RU21 up to 100 A,
CLASS 10
Technical data
Type
3RU21 16
3RU21 26
3RU21 36
3RU11 46
Width
45 mm
45 mm
55 mm
70 mm
S00
Size
General data
Release on
Trip class
S2
CLASS 10
10, 10A
10
Yes
Overload warning
No
on automatic RESET
on manual RESET
on remote RESET
min
min
min
Manual, remote and automatic RESET 1)
depending on the level of tripping current and the tripping characteristic
depending on the level of tripping current and the tripping characteristic
depending on the level of tripping current and the tripping characteristic
Features
Indication of status on the device
TEST function
RESET button
STOP button
Yes, using the slide "TEST function/ON-OFF indicator"
Yes
Yes
Yes
Safe operation of motors with “increased safety” type of protection
EC type test certificate number according to directive 94/9/EC (ATEX)
DMT 98 ATEX G 001
Ambient temperatures
Storage/transport
Operation
Temperature compensation
Permissible rated current at
S3
overload or phase failure
acc. to IEC 60 947-4-1
Phase failure sensitivity
Resetting and recovery
Reset possibilities after tripping
Recovery time
S0
II (2) GD
°C
°C
°C
Internal cabinet temperature of 60 °C %
–55 to +80
–40 to +70
up to +60
100 (over +60°C,
the current must be reduced)
Internal cabinet temperature of 70 °C %
87
Repeat terminals
Repeat coil terminal
Auxiliary switch repeat terminal
Yes
Yes
On request
Not required
Not required
Degree of protection
acc. to IEC 60529
IP 20
Touch protection
acc. to IEC 61140
Finger-safe for vertical contact from the front
Finger-safe only with optional terminal covers
Shock resistance (sine)
acc. to IEC 60068-2-27
g/ms
EMC
• Interference immunity
• Emitted interference
Resistance to extreme climates (humidity)
Installation angle
15/11 (auxiliary contacts 95/96 and 97/98: 8g/11ms)
IP 20 2)
8/10
Not relevant
Not relevant
%
Dimensions
Site altitude
–55 to +80
–40 to +70
up to +60
100 (over +60°C,
current reduction
is not required)
87
90
100
see dimensional drawings
m
Up to 2000; above this on request
The permissible installation angles for mounting onto contactors and individual mounting are shown in the diagrams. For mounting in the shaded
area, adjustment compensation of 10 % is necessary.
Individual mounting
Contactor + overload relay
Type of installation/mounting
1) Remote RESET in combination with the appropriate accessories.
2) Terminal compartment: IP 00 degree of protection.
3/12
Mounting onto contactor/stand-alone installation
with terminal support (For screw and snap-on
mounting onto TH 35 standard mounting rail)
Direct mounting/
stand-alone
installation with
terminal support
(For screw and
snap-on mounting
onto TH34 standard
mounting rail size;
size S3 also for
TH 75 standard
mounting rail."
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
Thermal Overload Relays
• Revised •
10/25/15
3RU21 up to 100 A,
CLASS 10
Technical data
Type
3RU21 16
Size
S00
Width
45 mm
Main circuit
Rated insulation voltage Ui (pollution degree 3)
Rated impulse withstand voltage Uimp
Rated operational voltage Ue
Type of current
45 mm
3RU21 36
3RU11 46
55 mm
70 mm
S2
S3
V
690
1000
kV
6
8
V
690
1000
DC
AC
Yes
Yes, frequency range up to 400 Hz
Current setting
Power loss per device (max.)
Short-circuit protection
3RU21 26
S0
A
0.11– 0.16
to 11 – 16
1.8 – 2.5
to 34 – 40
11-16
up to 70-80
18 – 25
to 80 – 100
W
4.1...6.3
6.2...7.5
8...14
10 to 16.5
With fuse without contactor
See selection and ordering data
With fuse and contactor
See technical data (short-circuit protection with fuses /
circuit-breaker for motor feeders)
Protective separation between main and auxiliary current paths
Acc. to IEC 60947-1,
• Screw terminals or ring terminal lug connections
V
440
440
• Spring - type terminals
Connection of the main circuit
Type of connection
690: Setting
_ 25 A
ranges <
440: Setting
ranges > 25 A
690
690
Screw terminals
690
Screw connection with box terminal 2)/ bar
connection
Screw terminals
• Terminal screw
M3, Pozidriv
size 2
Ø5 ... 6
M4, Pozidriv
size 2
Ø5 ... 6
M6, Pozidriv
size 2
Ø5 ... 6
Hexagon socket
screw 4 mm
Ø5 ... 6
• Operating devices
mm
• Tightening torque
Nm
0.8 to 1.2
2 to 2.5
3 to 4.5
4 to 6
Solid or stranded
mm2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5),
max. 2 x 4
2 × (1 to 2.5),
2 × (2.5 to 6),
max. 2 ×
(2.5 to 10)
2x(2.5 to 35)
1x(2.5 to 50)
2 × (2.5 to 16)
Finely stranded with end sleeve
mm2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5)
2 × (1 to 2.5),
2 × (2.5 to 6)
max. 1 x 10
2 x (1 to 25)
1 x (1 to 35)
2 × (2.5 to 35),
1 × (2.5 to 50)
AWG conductor con., solid or stranded
AWG
2 x (16 ... 12)
2 x (14 ... 8)
2 x (18 to 2)
1 × (18 to 1)
2 × (10 to 1/0),
1 × (10 to 2/0)
Ribbon cable (No. × width × thickness)
mm
2 x (20 ... 16)
2 x (18 ... 14)
2 x 12
–
–
–
2 × (6 × 9 × 0.8)
• Conductor cross-section
(min./max.), 1 or 2 wires
Bar connection
• Terminal screw
–
• Tightening torque
• Conductor cross-section
(min./max.)
M 6 × 20
Nm
–
4 to 6
Finely stranded with cable lug
mm2
–
2 × 70
Stranded with cable lug
mm2
–
2 × 70
AWG conductor connections, solid or
stranded with cable lug
AWG
–
2/0
With connecting bars (max. width)
mm
–
12
Auxiliary circuit
Main contacts: Number of NO contacts
Number of NC contacts
1
1
Assignment of auxiliary contacts
1 NO for the signal "tripped";
1 NC for disconnecting the contactor
Rated insulation voltage Ui (pollution degree 3)
Rated impulse withstand voltage Uimp
V
690
kV
6
A
A
A
A
A
A
A
4
4
4
3
2
0.75
0.75
Switching capacity of auxiliary contacts
NC for AC
AC-14/AC-15
Rated operational current Ie at Ue:
• 24 V
• 120 V
• 125 V
• 230 V
• 400 V
• 600 V
• 690 V
1) For conductor cross-sections for Cage Clamp
terminals, see "Connection of the auxiliary
circuit.”
Siemens Industry, Inc.
Industrial Controls Catalog
2) The box terminal can be removed. After the
box terminal has been removed, bar connection and lug connection is possible.
3/13
Overload Relays
Thermal Overload Relays
SIRIUS
• Revised •
10/18/15
3RU21 up to 100 A,
CLASS 10
Technical data
Type
3RU21 16
Size
Width
S00
45 mm
3RU21 26
S0
45 mm
3RU21 36
3RU11 46
55 mm
70 mm
S2
S3
NO for AC
AC-14/AC-15
Rated operational current Ie at Ue:
• 24 V
• 120 V
• 125 V
• 230 V
• 400 V
• 600 V
• 690 V
A
A
A
A
A
A
A
3
3
3
2
1
0.75
0.75
3
3
3
2
1
0.6
0.5
NC, NO for DC
DC-13
Rated operational current Ie at Ue:
• 24 V
• 60 V
• 110 V
• 125 V
• 220 V
A
A
A
A
A
1
On request
0.22
0.22
0.11
1
On request
0.22
0.22
0.11
6
6
Yes
Yes
Conventional thermal current Ith
Contact reliability
Short-circuit protection
With fuse
A
(suitable for PLC; 17 V, 5 mA)
Utilization cat. gL/gG
fast
With miniature circuit-breaker (C characteristic)
Reliable operational voltage for protective separation
between auxiliary current paths acc. to IEC 60947-1
A
A
6
10
A
61)
V
440
Connection of the auxiliary circuit
Type of connection
Screw terminal or Cage Clamp terminal
Connection characteristics
Screw terminals
Cage Clamp
terminals
• Terminal screw
Pozidrive Size 2
–
Nm
0.8 to 1.2
Solid or stranded
mm2
2 × (0.5 to 1.5),
2 × (0.75 to 2.5)
– × (0.25 to 2.5)
2
Finely stranded without end sleeve
mm2
–
Finely stranded with end sleeve
mm2
• Tightening torque
• Conductor cross-sections
(min./max.), 1 or 2 wires
AWG conductor connections,
solid or stranded
2 × (0.5 to 1.5),
2 × (0.75 to 2.5)
AWG 2 x (20 to 16)
2 x (18 to 14)
2 × (0.25 to 2.5)
2 × (0.25 to 1.5)
2 × (20 to 14)
1) Up to Ik ≤ 0.5 kA; ≤ 260 V.
3/14
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
• Revised •
10/18/15
Thermal Overload Relays
3RU21 up to 100 A,
CLASS 10
Circuit diagrams
Protection of DC motors
1-pole
2-pole
3RU21 16 overload relay
-F
2/T1 4/T2 6/T3
Siemens Industry, Inc.
Industrial Controls Catalog
STOP
RESET
TEST
3RU21 26 to 3RU11 46 overload relays
95
97
96
98
3/15
Overload Relays
Thermal Overload Relays
SIRIUS
• Revised •
10/18/15
3RU21 up to 100 A,
CLASS 10
Dimension drawings
Screw connection
Lateral clearance to grounded components: at least 6 mm.
3RU21 16-..B0
Size S00
3RU21 16-..B1
Size S00
with adapter for installation as a single unit with accessories
75.3
73
68
45
79.5
34.9
37.8
30
4.5
77
76
61.7
87.9
60.4
89.15
45
70
4.5
5
3RU21 26-..B.
Size S0
3RT2...-.B.. (DC-Spule)
3RT2...-.N.. (UC-Spule)
3RU21 26-..B1
Size S0
with adapter for installation as a single unit
107
102
97
92
3RT2...-.A..
(AC-Spule)
5
45
94.7
35.2
43
44.9
4.5
97.1
DCAC
66.8
84.8
66.7
108.8
85
45
4.5
5
3RT2...-.B.. (DC-Spule)
3RT2...-.N.. (UC-Spule)
5
84.4
84.6
94.6
3RT2...-.A..
(AC-Spule)
3RU21 36-..B.
Size S2
with adapter for installation as a single unit
3RU11 46-..B.
Size S3
with adapter for installation as a single unit
55.2
130
125.1
75.6
91.2
76.5
130.5
55
95 NC 96
2/T1
97 NO 98
4/T2
6/T3
104.2
114.5
1) For mounting on 35 mm standard mounting rail
(15 mm deep) acc. to EN 50 022
or 75 mm standard mounting rail acc. to EN 50023
3/16
Dimension drawings “Contactor with built-on overload relay” see
contactors and contactor combinations.
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
Thermal Overload Relays
• Revised •
10/18/15
3RU21 up to 100 A,
CLASS 10
Dimension drawings
Spring Loaded terminals
Lateral clearance to grounded components: at least 6 mm.
3RU21 16 -..C0
Size S00
3RU21 16 -..C1
Size S00 with with adapter for installation as a single unit
36
89.4
84.4
45
79.2
35
45
80
5
70
3RU21 26-..C0
Size S0
3RT2...-.B.. (DC-Spule)
3RT2...-.N.. (UC-Spule)
3RT2...-.A..
(AC-Spule)
5
3RU21 26-..C1
Size S0 with adapter for installation as a single unit
45
94.7
114
132.9
55.8
107
102
97
92
4.5
86.5
104
70.5
101.9
51.45
4.5
DCAC
79.5
45
130
125.1
3RT2...-.A..
3RT2...-.B.. (DC-Spule) (AC-Spule)
3RT2...-.N.. (UC-Spule)
55.2
132.9
82.6
101.6
5
84.4
98.2
108.2
3RU11 46-..D.
Size S3
3RU2136-..D.
Size S2
75.6
91.2
76.5
130.5
55
95 NC 96
2/T1
97 NO 98
4/T2
6/T3
104.2
114.5
1) For mounting on 35 mm standard mounting rail
(15 mm deep) acc. to EN 50 022
or 75 mm standard mounting rail acc. to EN 50 023
Dimension drawings “Contactor with built-on overload relay” see contactors
and contactor combinations.
Siemens Industry, Inc.
Industrial Controls Catalog
3/17
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
• Revised •
04/20/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
SIRIUS
Overview
The devices are manufactured in accordance with environmental guidelines and contain environmentally friendly and reusable
materials. They comply with important worldwide standards and
approvals.
Application
Industries
The 3RB2 / 3RB3 solid-state over load relays are suitable for
customers from all industries who want to provide optimum
inverse-time delayed protection of their electrical loads
(e.g. motors) under normal and heavy starting conditions
(CLASS 5 to CLASS 30), minimize project completion times,
inventories and power consumption, and optimize plant
availability and maintenance management.
Application
Connection for mounting onto contactors:
Optimally adapted in electrical, mechanical and design terms to the
contactors. The overload relay can be connected directly to these
contactor using these pins. Stand-alone installation is possible as
an alternative (in conjunction with a terminal bracket for stand-alone
installation).
Selector switch for manual/automatic RESET and RESET button:
With this switch you can choose between manual and automatic
RESET. A device set to manual RESET can be reset locally by
pressing the RESET button. On the 3RB21 a solid-state remote
is integrated into the unit.
Switch position indicator and TEST function of the wiring:
Indicates a trip and enables the wiring test.
Solid state test:
Enables a test of all important device components and functions.
Motor current setting:
Setting the device to the rated motor current is easy with the large
rotary knob.
Trip class setting/internal ground-fault detection (3RB21 only):
Using the rotary switch you can set the required trip class and activate
the internal ground-fault detection dependent on the starting conditions.
Connecting terminals (removable terminal block for auxiliary circuits):
The generously sized terminals permit connection of two conductors
auxiliary circuit can be connected with screw-type terminals or with
spring-loaded terminals.
The 3RB and 3RB solid-state overload relays up to 630 A
with internal power supply have been designed for inverse-time
delayed protection of loads with normal and heavy starting
(see Function) against excessive temperature rise due to overload, phase unbalance or phase failure. An overload, phase unbalance or phase failure result in an increase of the motor current
beyond the set motor rated current. This current rise is detected
by the current transformers integrated into the devices and evaluated by corresponding solid-state circuits which then output a
pulse to the auxiliary contacts. The auxiliary contacts then switch
off the load by means of the contactors control circuit. The break
time depends on the ratio between the tripping current and set
current Ie and is stored in the form of a long-term stable tripping
characteristic (see Characteristic Curves).
In addition to inverse-time delayed protection of loads against
excessive temperature rise due to overload, phase unbalance
and phase failure, the 3RB21/31 solid-state overload relays also
allow internal ground-fault detection (not possible in conjunction
with wye-delta assemblies). This provides protection of loads
against high-resistance short-circuits due to damage to the
insulation material, moisture, condensed water etc.
The "tripped" status is signaled by means of a switch position
indicator (see Function). Resetting takes place either manually
or automatically after the recovery time has elapsed
(see Function).
3/18
The 3RB2 / 3RB3 solid-state overload relays have been
designed for the protection of three-phase motors in sinusoidal
50/60 Hz voltage networks. The relays are not suitable for the
protection of single-phase AC or DC loads.
The 3RU thermal overload relay or the 3RB22/3RB23 solidstate overload relay can be used for single-phase AC loads.
For DC loads the 3RU thermal overload relays are available.
Ambient conditions
The devices are insensitive to external influences such as
shocks, corrosive environments, ageing and temperature
changes.
For the temperature range from –25 C to +60 °C, the
3RB2 / 3RB3 solid-state overload relays compensate the
temperature according to IEC 60947-4-1.
The 3RB2 / 3RB3 solid-state overload relays are suitable for the
overload protection of explosion-proof motors with "increased
safety" type of protection EEx e according to ATEX guideline
94/9/EC. The relays meet the requirements of EN 60079-7 (Electrical apparatus for potentially explosive atmospheres –
Increased safety "e").
The basic safety and health requirements of ATEX guideline
94/9/EG are fulfilled by compliance with
• EN 60947-1
• EN 60947-4-1
• EN 60947-5-1
• EN 60079-14
EU type test certificate for Group II, Category (2) G/D under
application. It has the number PTB 09 ATEX 3001.
Accessories
The following accessories are available for the 3RB2/3RB3
solid-state overload relays:
• One terminal bracket each for the overload relays size S00
and S0 (sizes S2 to S12 can be installed as single units without
a terminal bracket)
• One mechanical remote RESET module for all sizes
• One cable release for resetting devices which are difficult to
access (for all sizes)
• One sealable cover for all sizes
• Box terminals for sizes S6 and S10/S12
• Terminal covers for sizes S2 to S10/S12
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
• Revised •
04/20/15
3RB2 / 3RB3 Solid-State Overload Relays
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
Design
Device concept
The 3RB2 / 3RB3 solid-state overload relays are compact
devices, i.e. current measurement (transformer) and the evaluation unit are integrated in a single enclosure.
Mounting options
The 3RB2 / 3RB3 solid-state overload relays are suitable for
direct and space-saving mounting onto 3RT1 / 3RT2 contactors
and 3RW30/3RW31 soft starters as well as for stand-alone
installation. For more information on the mounting options,
please see Technical Specifications and Selection and
.
Ordering Data
Connection technique
Main circuit
All sizes of the 3RB2 / 3RB3 solid-state overload relays can be
connected with screw-type terminals. As an alternative for sizes
S3 to S10/S12, the main circuits can be connected via the Busbar. Sizes S2 to S6 of the 3RB20/3RB21 relays are also available
with a straight-through transformer. In this case, the cables of the
main circuit are routed directly through the feed-through openings of the relay to the contactor terminals.
Overload relays in contactor assemblies for
Wye-Delta starting
When overload relays are used in combination with contactor
assemblies for Wye-Delta starting it must be noted that only
0.58 times the motor current flows through the line contactor.
An overload relay mounted onto the line contactor must be set
to 0.58 times the motor current.
When 3RB21 / 31 solid-state overload relays are used in combination with contactor assemblies for Wye-Delta starting, the
internal ground-fault detection must not be activated.
Operation with frequency converter
The 3RB2 / 3RB3 solid-state overload relays are suitable for
frequencies of 50/60 Hz and the associated harmonics. This
permits the 3RB2 / 3RB3 overload relays to be used on the
incoming side of the frequency converter.
If motor protection is required on the outgoing side of the
frequency converter, the 3RN thermistor motor protection
devices or the 3RU thermal overload relays are available for
this purpose.
Auxiliary circuit
Connection of the auxiliary circuit (removable terminal block) is
possible with either screw terminals or spring-loaded terminals.
For more information on the connection options,
see Technical Specifications and Selection and Ordering Data.
Siemens Industry, Inc.
Industrial Controls Catalog
3/19
Overload Relays
SIRIUS
3RB2 / 3RB3 Solid-State Overload Relays
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
Function
Basic functions
Recovery time
The 3RB2 / 3RB3 solid-state overload relays are designed for:
• Inverse-time delayed protection of loads from overloading
• Inverse-time delayed protection of loads from phase
unbalance
• Inverse-time delayed protection of loads from phase failure
• Protection of loads from high-resistance short-circuits
(internal ground-fault detection only with 3RB21 / 31).
With the 3RB2 / 3RB3 solid-state overload relays the recovery
time after inverse-time delayed tripping is between 0.5 and 3
minutes depending on the preloading when automatic RESET
is set. These recovery times allow the load (e.g. motor) to
cool down.
Control circuit
The 3RB2 / 3RB3 solid-state overload relays have an internal
power supply, i.e. no additional supply voltage is required.
Short-circuit protection
Fuses or motor starter protectors must be used for short-circuit
protection. For assignments of the corresponding short-circuit
protection devices to the 3RB2 / 3RB3 solid-state overload relays with/without contactor see Technical Specifications and
Selection and Ordering Data.
If the button is set to manual RESET, the 3RB2 / 3RB3 devices
can be reset immediately after inverse-time delayed tripping.
After a ground fault trip the 3RB21 / 31 solid-state overload relays
(with ground-fault detection activated) can be reset immediately
without a recovery time regardless of the reset mode set.
TEST function
With motor current flowing, the TEST button can be used to
check whether the relay is working correctly (device/solid-state
TEST). Current measurement, motor model and trip unit are
tested. If these components are OK, the device is tripped in
accordance with the table below. If there is an error, no tripping
takes place.
Trip classes
Trip class
The 3RB20 / 30 solid-state overload relays are available for
normal starting conditions with trip CLASS 10 or for heavy starting conditions with trip CLASS 20 (fixed setting in each case).
Required loading with the
Tripping within
rated current prior to pressing the test button
CLASS 5
2 min
8s
CLASS 10
4 min
15 s
30 s
The 3RB21 / 31 solid-state overload relays are suitable for normal CLASS 20 8 min
and heavy starting. The required trip class (CLASS 5, 10, 20 or
12 min
45 s
CLASS 30
30) can be adjusted by means of a rotary knob depending on the
Note:
The
test
button
must
be
kept
pressed
throughout the test.
current starting condition.
For details of the trip classes see Characteristic Curves.
Phase failure protection
The 3RB2 / 3RB3 solid-state overload relays are fitted with
phase failure protection (see Characteristic Curves) in order to
minimize temperature rise of the load during single-phase
operation.
Phase failure protection is not effective for loads with starconnection and a grounded neutral point or a neutral point which
is connected to a neutral conductor.
Setting
The 3RB2 / 3RB3 solid-state overload relays are set to the
motor rated current by means of a rotary knob. The scale of the
rotary knob is shown in amps.
Testing of the auxiliary contacts and the control current wiring is
possible with the switch position indicator slide. Actuating the
slide simulates tripping of the relay. During this simulation the NC
contact (95-96) is opened and the NO contact (97-98) is closed.
This tests whether the auxiliary circuit has been correctly wired.
After a test trip the relay is reset by pressing the RESET button.
Self-monitoring
The 3RB2 / 3RB3 solid-state overload relays have a self-monitoring feature, i.e. the devices constantly monitor their own basic
functions and trip if an internal fault is detected.
Display of operating status
With the 3RB21 / 31 solid-state overload relay it is also possible
to select the trip class (CLASS 5, 10, 20 or 30) using a second
rotary knob and to switch the internal ground-fault detection on
and off.
The respective operating status of the 3RB2 / 3RB3 solid-state
overload relays is displayed by means of the position of the
marking on the switch position indicator slide. After tripping due
to overload, phase failure, phase unbalance or ground fault
(ground fault detection possible only with 3RB21 / 31) the marking
on the slide is to the left on the "O" mark, otherwise it is on the "I"
mark.
Manual and automatic reset
Auxiliary contacts
In the case of the 3RB2 / 3RB3 solid-state overload relays, a
slide switch can be used to choose between automatic and
manual resetting.
The 3RB2 / 3RB3 solid-state overload relays are fitted with an
NO contact for the "tripped" signal, and an NC contact for
switching off the contactor.
If manual reset is set, a reset can be carried out directly on the
device after a trip by pressing the blue RESET button. Resetting
is possible in combination with the mechanical reset options
from the accessories range (see Accessories). As an alternative
to the mechanical RESET options, the 3RB21 / 31 solid-state overload relays are equipped with an electrical remote RESET which
may be utilized by applying a voltage of 24 V DC to the terminals
A3 and A4.
If the slide switch is set to automatic RESET, the relay is reset
automatically.
The time between tripping and resetting is determined by the
recovery time.
3/20
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
• Revised •
04/20/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
Selection and ordering data
Conversion aid 3RB10 or 3RB20 ––> 3RB20 or 30
Size
S00
S0
S2
S3
S6
S10/S12
CLASS 10
CLASS 20
Old Order No.
Setting range
A
New Order No.
Setting range
A
3RB20 [email protected]
0.1 ... 0.4
3RB20 [email protected]
0.32 ... 1.25
3RB30 [email protected]
3RB30 [email protected]
0.1 ... 0.4
0.32 ... 1.25
1 ... 4
3RB30 [email protected]
1 ... 4
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3
3RB30 [email protected]
3 ... 12
3RB30 [email protected]
3RB30 [email protected]
3RB30 [email protected]
3RB30 [email protected]
3RB30 [email protected]
3RB30 [email protected]
3RB30 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
0.1 ... 0.4
0.32 ... 1.25
1 ... 4
3 ... 12
6 ... 25
12 ... 80
12 ... 80
12.5 ... 50
25 ... 100
3RB20 [email protected]
160 ... 630
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB20 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
... 12
0.1 ... 0.4
0.32 ... 1.25
1 ... 4
3 ... 12
6 ... 25
6 ... 25
13 ... 50
13 ... 50
25 ... 100
50 ... 200
55 ... 250
200 ... 540
300 ... 630
1
2
50 ... 200
55 ... 250
1
2
Conversion aid 3RB10 / 21 ––> 3RB21 / 31
Size
S00
S0
S2
S3
S6
S10/S12
CLASS 10
CLASS 20
Siemens Industry, Inc.
Industrial Controls Catalog
Old Order No.
Setting range
A
New Order No.
Setting range
A
3RB21 [email protected]
0.1 ... 0.4
3RB21 [email protected]
0.4 ... 1.6
3RB31 13-4RB0
3RB31 13-4NB0
0.1 ... 0.4
0.32 ... 1.25
1.5 ... 6
3RB31 13-4PB0
1 ... 4
3RB21 [email protected]
3RB21 [email protected]
3RB21 [email protected]
3
3RB31 13-4SB0
3 ... 12
3RB31 23-RB0
3RB31 23-NB0
3RB31 23-PB0
3RB31 23-4SB0
3RB31 23-4QB0
3RB31 33-4UB0
3RB31 33-4UB0
3RB21 43-4UB0
3RB21 43-4EB0
3RB21 53-4FW2
3RB21 53-4FC2
3RB21 63-4GC2
0.1 ... 0.4
0.32 ... 1.25
1 ... 4
3 ... 12
6 ... 25
12 ... 80
12 ... 80
12.5 ... 50
25 ... 100
3RB21 [email protected]
3RB21 [email protected]
3RB21 [email protected]
3RB21 [email protected]
3RB21 [email protected]
3RB21 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
3RB10 [email protected]
1
2
... 12
0.1 ... 0.4
0.32 ... 1.25
1 ... 4
3 ... 12
6 ... 25
6 ... 25
13 ... 50
12.5 ... 50
25 ... 100
50 ... 200
55 ... 250
200 ... 540
300 ... 630
3RB21 63-4MC2
50 ... 200
55 ... 250
160 ... 630
Note:
CLASS 5, 10, 20 and 30
can be set on the unit
3/21
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
• Revised •
04/20/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
SIRIUS
3RB20 solid-state overload relays
and stand-alone installation2)3), CLASS 10 or CLASS 20 for direct mounting1)2)
Features and technical specifications:
• Overload protection, phase failure protection and unbalance
protection
• Internal power supply
• Auxiliary contacts 1 NO + 1 NC
Size
Contactor4)
Set current value
of the inverse-time delayed
overload trip
• Manual and automatic RESET
• Switch position indicator
• TEST function and self-monitoring
Screw Terminal
Order Number
Spring Loaded Terminal
Order Number
A
Size S001)
S00
kg
0.1 … 0.4
3RB30 16- @ RB0
3RB30 [email protected]
3RB30 16- @ PB0
3RB30 [email protected]
3RB30 16- @ NB0
0.32 … 1.25
1…4
0.250
3RB30 [email protected]
3RB30 26- @ PB0
3RB30 [email protected]
3RB30 26- @ NB0
3RB30 26- @ SB0
3RB30 [email protected]
0.172
0.250
0.250
3RB30 26- @ QB0
3RB30 26- @ VB0
3RB30 [email protected]
3RB30 [email protected]
3RB30 [email protected]
0.250
0.250
3RB30 36- @ UB0
3RB30 [email protected]
0.360
3RB30 36- @ UW1
3RB30 [email protected]
0.230
with busbar
3RB30 36- @ WB0
3RB30 [email protected]
0.360
with pass
through CT’s
3RB30 36- @ WW1
3RB30 [email protected]
0.230
12.5 … 50
with busbar
3RB20 46- @ UB0
3RB20 [email protected]
0.560
25 … 100
with busbar
3RB20 46- @ EB0
3RB20 [email protected]
0.560
with pass
through CT’s
3RB20 46- @ EW1
3RB20 [email protected]
0.450
3 … 12
6 … 25
10 … 40
Size S2 1)3)5)
12 … 50
20 … 80
3RB30 36-1UB0
with busbar
with pass
through CT’s
Size S3 1)3)5)
S3
0.172
0.172
3RB30 26- @ RB0
1…4
S2
3RB30 [email protected]
3RB30 [email protected]
0.1 … 0.4
0.32 … 1.25
3RB30 26-1QB0
0.172
3RB30 16- @ SB0
3RB30 16- @ TB0
Size S01)
0.172
3RB30 [email protected]
3 … 12
4 … 16
3RB30 16-1RB0
S0
Weight per
PU approx.
0.250
3RB20 46-1EB0
Size S6 2)5)
S6
with busbar
3RB20 56- @FC2
3RB20 [email protected]
1.030
with pass
through CT’s
3RB20 56- @ FW2
3RB20 [email protected]
0.690
55 … 250
with busbar
3RB20 66- @ GC2
with busbar
3RB20 [email protected]
3RB20 [email protected]
1.820
160 … 630
50 … 200
3RB20 56-1FW2
Size S10/S122)
S10/S12
and size 14
(3TF68/
3TF69)
3RB20 66- @ MC2
3RB20 66-1MC2
1) The relays with an Order No. ending with "0" are designed for direct mounting
to the contactor. With the matching terminal brackets (see Accessories) the
sizes S00 to S3 can also be installed as stand-alone units.
2) The relays with an Order No. ending with "2" are designed for direct
mounting and stand-alone installation. For 3TF68/3TF69 contactors, direct
mounting is not possible.
3) The relays with an Order No. ending with "1" are designed for stand-alone
installation.
4) Observe maximum rated operational current of the devices.
5) The relays with an Order No. with "X" in 10th position are equipped with a
straight-through transformer.
3/22
2 Class 20
2 Class 20
1 Class 10
1 Class 10
1.820
For accessories, see pages 3/49-3/50.
For description, see pages 3/18-3/20.
For technical data, see pages 3/24-3/29.
For dimension drawings, see page 3/30.
For schematic diagrams, see page 3/31.
Product Category: IEC
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
3RB2 / 3RB3 Solid-State Overload Relays
• Revised •
04/20/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
3RB21 / 3RB31 solid-state overload relays for direct mounting1)2)
and stand-alone installation2)3), CLASS 5, 10, 20 and 30 adjustable
Features and technical specifications:
• Overload protection, phase failure protection and unbalance
protection
• Internal ground fault detection (activatable)
• Internal power supply
• Auxiliary contacts 1 NO + 1 NC
Size
Contactor4)
Set current value
of the inverse-time delayed
overload trip
•
•
•
•
Manual and automatic RESET
Electrical remote RESET integrated
Switch position indicator
TEST function and self-monitoring
Screw Terminal
Order Number
Spring Loaded Terminal
Order Number
A
Size S001)
S00
kg
0.1 … 0.4
1…4
3RB31 13-4TB0
0.1 … 0.4
3RB31 23-4RB0
3RB31 23-4RE0
3RB31 23-4PB0
3RB31 23-4PE0
3RB31 23-4NB0
0.32 … 1.25
1…4
3RB31 23-4SB0
3 … 12
3RB31 23-4QB0
3RB31 23-4VB0
6 … 25
10 … 40
3RB31 23-4NE0
3RB31 23-4SE0
0.175
0.175
0.175
0.175
0.175
0.215
0.215
0.215
0.215
3RB31 23-4QE0
3RB31 23-4VE0
0.215
0.215
with busbar
3RB31 33-4UB0
3RB31 33-4UD0
0.360
with pass
through CT’s
3RB31 33-4WB0
3RB31 33-4WD0
0.230
with busbar
3RB31 33-4UW1
3RB31 33-4UX1
0.360
with pass
through CT’s
3RB31 33-4WW1
3RB31 33-4WX1
0.230
12.5 … 50
with busbar
3RB21 43-4UB0
3RB21 43-4QD0
0.560
25 … 100
with busbar
3RB21 43-4EB0
3RB21 43-4ED0
0.560
with pass
through CT’s
3RB21 43-4EW1
3RB21 43-4EX1
0.450
with busbar
3RB21 53-4FC2
3RB21 53-4FF2
1.030
with pass
through CT’s
3RB21 53-4FW2
3RB21 53-4FX2
0.690
3RB21 63-4GC2
3RB21 63-4GF2
1.820
12 … 50
20 … 80
3RB31 33-4WB0
Size S31)3)5)
S3
3RB31 13-4PE0
4 … 16
Size S01)
S2
3RB31 13-4PB0
3RB31 13-4NE0
3RB31 13-4SE0
3RB31 13-4TE0
3RB31 13-4RB0
Size S21)3)5)
3RB31 13-4RE0
3RB31 13-4SB0
3 … 12
3RB31 23-4QB0
3RB31 13-4RB0
3RB31 13-4NB0
0.32 … 1.25
S0
Weight per PU
approx.
3RB21 43-4EB0
Size S62)5)
S6
50 … 200
3RB21 53-4FC2
Size S10/S122)
S10/S12
and size 14
(3TF68/
3TF69)
55 … 250
160 … 630
3RB21 63-4MC2
3RB21 63-4MF2
1.820
3RB21 63-4MC2
1) The relays with an Order No. ending with "0" are designed for direct mounting
to the contactor. With the matching terminal brackets (see Accessories) the
sizes S00 to S3 can also be installed as stand-alone units.
2) The relays with an Order No. ending with "2" are designed for direct
mounting and stand-alone installation. For 3TF68/3TF69 contactors, direct
mounting is not possible.
3) The relays with an Order No. ending with "1" are designed for stand-alone
installation.
4) Observe maximum rated operational current of the devices.
5) The relays with an Order No. with "X" in 10th position are equipped with a
straight-through transformer.
Siemens Industry, Inc.
Industrial Controls Catalog
For accessories, see pages 3/49-3/50.
For description, see pages 3/18-3/21.
For technical data, see pages 3/24-3/29.
For dimension drawings, see page 3/30.
For schematic diagrams, see page 3/31.
3/23
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
• Revised •
10/18/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
SIRIUS
Technical specifications
Type
Size
3RB30 26,
3RB31 23
3RB30 36
3RB31 33
3RB20 46,
3RB21 43
3RB20 56,
3RB21 53
3RB20 66,
3RB21 63
45 mm
45 mm
55 mm
70 mm
120 mm
145 mm
S00
Width
General data
Trips in the event of
Trip class according to IEC 60947-4-1
3RB30 16,
3RB31 13
S0
S2
S6
S10/S12
Overload, phase failure, and phase unbalance
+ ground fault (for 3RB31 only)
CLASS 3RB30: 10E, 20E;
3RB31: 5E, 10E, 20E or 30E adjustable
Phase failure sensitivity
Yes
Overload warning
No
Reset and recovery
• Reset options after tripping
• Recovery time
- For automatic RESET
- For manual RESET
- For remote RESET
S3
min.
min.
min.
Manual and automatic RESET, 3RB31 has
an integrated connection for electrical
remote RESET (24 V DC)
Appox. 3 min
Immediately
Immediately
3RB20: Manual and automatic RESET;
3RB21: Manual, automatic and remote RESET
Appox. 3 min
Immediately
Immediately
Features
• Display of operating status on device
• TEST function
Yes, by means of switch position indicator slide
• RESET button
• STOP button
Yes
No
Explosion protection – Safe operation of motors
with"Increased safety" type of protection
EC type test certificate number according to directive 94/9/EC (ATEX)
Ambient temperatures
• Storage/transport
°C
• Operation
°C
• Temperature compensation
°C
• Permissible rated current at
- Temperature inside control cabinet 60 °C, stand-alone installation %
- Temperature inside control cabinet 60 °C, mounted on contactor %
- Temperature inside control cabinet 70 °C
%
Repeat terminals
• Coil repeat terminal
• Auxiliary contact repeat terminal
On
PTB 09 ATEX 3001
II (2) G [Ex e] [Ex d] [Ex px] request
Yes, test of electronics by pressing the button Test
Test of auxiliary contacts and wiring of control current circuit by actuating
the switch position indicator slide/self-monitoring
II (2) G [Ex t] [Ex p]
II (2) G [Ex t] [Ex p]
-40 ... +80
-25 ... +60
+60
—
100
On request
Yes
Yes
100
100
On request
IP20
Finger-safe for vertical contact from the front
Shock resistance with sine according to IEC 60068-2-27 g/ms
15/11 (signaling contact
97/98 in position
"tripped": 9g/ms)
• Field-related interference according to IEC 61000-4-3
(corresponds to degree of severity 3)
V/m
10
Degree of severity B according to EN 55011 (CISPR 11) and EN 55022 (CISPR 22)
%
Dimensions
Installation altitude above sea level
Type of mounting
1) Permissible rated current in case of heavy starting
Size S0 at 10 A up to 40 A
- CLASS 20, Ie max = 32 A
- CLASS 30, Ie max = 25 A
3/24
Finger-safe
with cover
2 (line to earth), 1 (line to line)
8 (air discharge), 6 (contact discharge)
Mounting position
IP203)
Finger-safe,
for busbar
connection
with cover
2 (power ports), 1 (signal ports)
kV
Resistance to extreme climates – air humidity
100 or 902)
70
15/11 (signaling 15/11 (signaling contact
contact 97/98 in 97/98 in position
"Tripped" position: "tripped": 4 g/11ms)
8 g/11ms)
• Electrostatic discharge according to IEC 61000-4-2
(corresponds to degree of severity 3)
Electromagnetic compatibility (EMC) –
Emitted interference
100
70
Not required
Not required
Degree of protection according to IEC 60529
Touch protection according to IEC 61140
Electromagnetic compatibility (EMC) – Interference immunity
• Conductor-related interference
- Burst according to IEC 61000-4-4
kV
(corresponds to degree of severity 3)
- Surge according to IEC 61000-4-5
kV
(corresponds to degree of severity 3)
PTB 09 ATEX 3001
II (2) G [Ex e] [Ex d] [Ex px]
95
100
See dimensional drawings
m
Up to 2000
Any
Direct mounting/stand-alone installation
with terminal support
Direct mounting /
Stand-alone installation
2) 90 % for relay with current setting range 160A to 630A
3) Terminal compartment: degree of protection IP00.
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
• Revised •
10/25/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
3RB30 16,
3RB31 13
S00
45 mm
3RB30 26,
3RB31 23
S0
45 mm
3RB30 36,
3RB31 33
S2
55 mm
3RB20 46,
3RB21 43
S3
70 mm
V
690
690
690
1000
kV
6
6
6/8
8
V
690
690
690
1000
0.1 ... 0.4 to
10... 40
12.5 ... 50
and 20 to 80
12.5 ... 50 to
25 ... 100
Type
Size
Width
Main circuit
Rated insulation voltage Ui
(pollution degree 3)
Rated impulse withstand voltage Uimp
Rated operational voltage Ue
Type of current
• Direct current
• Alternating current
No
Yes, 50/60 Hz ± 5%
Set current
A
0.1 ... 0.4 to
4 ... 16
Power loss per unit (max.)
W
0.05 ... 0.2
Short-circuit protection
- With fuse without contactor
- With fuse and contactor
0.05
See Selection and Ordering Data
See Technical Specifications (short-circuit protection with fuses for motor feeders)
Protective separation between main and auxiliary
V
conducting path according to IEC 60947-1 (pollution degree 2)
690 for grounded networks, otherwise 600 V
Electrical connection version
Screw terminal
Screw terminal
Screw terminal
Screw terminal
with box terminal /
M3, Pozidriv size 2
0.8 ... 1.2
M3, Pozidriv size 2
2 ... 2.5
M4, Pozidriv size 2
2 ... 2.5
M8, 4 mm Allen screw
4 ... 6
mm2
2 × (0.5 ... 1.5)3)
2 × (0.75 ... 2.5)3)
2 × (0.05 ... 4)3)
2 × (1 ... 2.5) 3)
2 × (2.5 ... 10)
1 × (1 ... 50)
2 × (1 ... 35)
(Solid or Stranded)
2 × (2.5 ... 16)
- Finely stranded with end sleeve (DIN 46228 T1)
mm 2
2 × (0.5 ... 1.5)3)
2 × (0.75 ... 2.5)3)
2 × (1 ... 2.5) 3)
2 × (2.5 ... 6)3)
max. 1 x 10
2 × (1 ... 25),
1 × (1 ... 35)
2 × (2.5 ... 35),
1 × (2.5 ... 50)
- Stranded
m m2
--
- AWG cables, solid or stranded
AWG 2 × (20 ... 16)3)
2 × (18 ... 14)3)
2 × 12
- Ribbon cable conductors
(number x width x circumference)
mm
--
2 × (6 × 9 × 0.8)
Connection for main circuit
Screw terminal
• Terminal screw
• Tightening torque
• Conductor cross-sections (min./max.)
- Solid or stranded
Nm
2 × (10 ... 50),
1 × (10 ... 70)
2 × (16 ... 12)3)
2 × (14 ... 8)3)
2 × (18 ... 2)
1 × (18 ... 1)
2 × (10 ... 1/0),
2 × (10 ... 2/0)
Busbar connections
• Terminal screw
• Tightening torque
• Conductor cross-section (min./max.)
- Finely stranded with cable lug
- Stranded with cable lug
- AWG connections, solid or stranded, with cable lug
- With connecting bar (max. width)
Nm
---
M 6 × 20
4 ... 6
mm2
m m2
AWG
mm
-----
2 × 70
3 × 70
2/0
12
Straight-through transformers
• Diameter of opening
mm
–
1) For version with straight-through transformer up to 1000 VAC.
2) For version with straight-through transformer up to 8 kV.
Siemens Industry, Inc.
Industrial Controls Catalog
15
18
3) If two different conductor cross-sections are connected
to one clamping point, both cross-sections must lie in
the range specified.
3/25
Overload Relays
SIRIUS
3RB2 /3RB3 Solid-State Overload Relays
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
Type
3RB20 56,
3RB21 53
S6
120 mm
Size
Width
Main circuit
Rated insulation voltage Ui (pollution degree 3)
V
1000
kV
8
Rated operational voltage Ue
V
1000
Rated impulse withstand voltage Uimp
Type of current
• Direct current
• Alternating current
3RB20 66,
3RB21 63
S10/S12
145 mm
No
Yes, 50/60 Hz ± 5 (other frequencies on request)
Set current
A
50 ... 200
Power loss per unit (max.)
W
0.05
Short-circuit protection
- With fuse without contactor
- With fuse and contactor
55 ... 250 to
160 ... 630
See Selection and Ordering Data
See Technical Specifications (short-circuit protection with fuses for motor feeders)
Safe isolation between main
V
and auxiliary conducting path according to IEC 60947-1
6901)
Electrical connection version
Screw terminal with box terminal/
Bus connection /
Straight-through transformer
Screw terminal
with box terminal/
Bus connection
4 mm Allen screw
10 ... 12
5 mm Allen screw
20 ... 22
Connection for main circuit
Screw terminal
• Terminal screw
• Tightening torque
Nm
• Conductor cross-sections (min./max.), 1 or 2 conductors
- Solid
mm2
- Finely stranded without end sleeve
- Finely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
- Ribbon cable conductors
(number x width x circumference)
Busbar connections
• Terminal screw
• Tightening torque
• Conductor cross-section (min./max.)
- Finely stranded with cable lug
- Stranded with cable lug
- AWG connections, solid or stranded, with cable lug
- With connecting bar (max. width)
Straight-through transformers
• Diameter of opening
• Conductor cross-section (max.)
- N YY
- H07RN-F
mm2
With 3RT19 55-4G box terminal:
2 × (1 × max. 50, 1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G box terminal:
2 × (1 × max. 95, 1 × max. 120),
1 × (10 ... 120)
mm2 With 3RT19 55-4G box terminal:
2 × (1 × max. 50, 1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G box terminal:
2 × (1 × max. 95, 1 × max. 120),
1 × (10 ... 120)
2
With 3RT19 55-4G box terminal:
mm
2 × (max. 70),
1 × (16 ... 70)
With 3RT19 56-4G box terminal:
2 × (max. 120),
1 × (16 ... 120)
AWG With 3RT19 55-4G box terminal:
2 × (max. 1/0),
1 × (6 ... 2/0)
With 3RT19 56-4G box terminal:
2 × (max. 3/0),
1 × (6 ... 250 kcmil)
With 3RT19 55-4G box terminal:
mm
2 × (6 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ... 6 × 15.5 × 0.8)
With 3RT19 56-4G box terminal:
2 × (10 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ... 10 × 15.5 × 0.8)
2 × (50 ... 185),
front clamping point only:
1 × (70 ... 240)
rear clamping point only:
1 × (120 ... 185)
2 × (50 ... 185),
front clamping point only:
1 × (70 ... 240)
rear clamping point only:
1 × (120 ... 185)
2 × (70 ... 240),
front clamping point only:
1 × (95 ... 300)
rear clamping point only:
1 × (120 ... 240)
2 × (2/0 ... 500 kcmil),
front clamping point only:
1 × (3/0 ... 600 kcmil)
rear clamping point only:
1 × (250 kcmil ... 500 kcmil)
2 × (20 × 24 × 0.5),
1 × (6 × 9 × 0.8 ... 20 × 24 × 0.5)
Nm
M 8 × 25
10 ... 14
M 10 × 30
14 ... 24
m m2
m m2
AWG
mm
16 ... 952)
25 ... 1202)
4 ... 250 kcmil
15
50 ... 2403)
70 ... 2403)
2/0 ... 500 kcmil
25
mm
24.5
--
120
70
---
2
mm
mm2
1) For grounded networks, otherwise 600 V.
2) When connecting cable lugs according to DIN 46235, use the
3RT19 56-4EA1 terminal cover for conductor cross-sections
from 95 mm2 to ensure phase spacing.
3/26
--
3) When connecting cable lugs according to DIN 46234 for conductor crosssections from 240 mm2 as well as DIN 46235 for conductor cross-sections
from 185 mm2, use the 3RT19 56-4EA1 terminal cover to ensure phase
spacing.
Siemens Industry, Inc.
Industrial Controls Catalog
SIRIUS
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
• Revised •
10/18/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
Type
Size
Width
3RB30 16,
3RB31 13
S00
45 mm
Number of NO contacts
1
Auxiliary circuit
Number of NC contacts
3RB30 36,
3RB31 33
S2
55 mm
3RB20 46,
3RB21 43
S3
70 mm
3RB20 56,
3RB21 53
S6
120 mm
3RB20 66,
3RB21 63
S10/S12
145 mm
1
Auxiliary contacts – assignment
Rated insulation voltage Ui (pollution degree 3)
3RB30 26,
3RB31 23
S0
45 mm
1 NO for the signal "tripped",
1 NC for switching off the contactor
V
300
Rated impulse withstand voltage Uimp
kV
4
• NC contact with alternating current AC-14/AC-15
Rated operational current Ie at Ue:
- 24 V
- 120 V
- 125 V
- 250 V
A
A
A
A
4
4
4
3
• NO contact with alternating current AC-14/AC-15:
Rated operational current Ie at Ue:
- 24 V
- 120 V
- 125 V
- 250 V
A
A
A
A
4
4
4
3
Auxiliary contacts – Contact rating
• NC, NO contact with direct current DC-13:
Rated operational current Ie at Ue:
- 24 V
- 60 V
- 110 V
- 125 V
- 250 V
• Continuous thermal current Ith
1)
A
A
A
A
A
2
0.55
0.3
0.3
0.11
A
5
• Contact reliability
(suitability for PLC control; 17 V, 5 mA)
Yes
Short-circuit protection
• With fuse
- gL/gG operational class
A
Ground-fault protection (only 3RB31)
The information refers to sinusoidal residual currents at 50/60 Hz.
• Tripping value I∆
• Operating range I
• Response time ttrip (in steady-state condition)
6
> 0.75 × Imotor
Lower current setting value < Imotor < 3.5 × upper current setting value
s
<1
Connecting terminals A3, A4
24 V DC, max. 200 mA for approx. 20 ms, then < 10 mA
Protective separation between main
V
and auxiliary conducting path according to IEC 60947-1
300
Integrated electrical remote RESET (only 3RB31)
CSA, UL, and UR rated data
Auxiliary circuit – switching capacity
3RB30: B600, R300
3RB31: B300, R300
B300, R300
Connection of the auxiliary circuit
Connection type
Screw terminal or spring-loaded terminals
Screw terminal
• Terminal screw
• Tightening torque
Pozidriv size 2
Nm
0.8 ... 1.2
• Conductor cross-sections (min./max.), 1 or 2 conductors
- Solid or stranded
mm2 1 × (0.5 ... 4), 2 × (0.5 ... 2.5)
- F inely stranded with end sleeve
mm2 1 × (0.5 ... 2.5), 2 × (0.5 ... 1.5)
- AWG conductors, solid or stranded
AWG 2 × (20 ... 14)
Spring-loaded terminals
• Conductor cross-sections (min./max.), 1 or 2 conductors
- So l i d
- Finely stranded without end sleeve
- F inely stranded with end sleeve
- Stranded
- AWG conductors, solid or stranded
Siemens Industry, Inc.
Industrial Controls Catalog
mm2
mm2
mm 2
m m2
AWG
2 × (0.25 ... 1.5)
-2 × (0.25 ... 1.5)
2 × (0.25 ... 1.5)
2 × (24 ... 16)
3/27
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
• Revised •
10/18/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
SIRIUS
Short-circuit protection with fuses for motor starters
For short-circuit currents up to 50 kA at 400 to 690 V
Overload relays
Contactor
CLASS
5 and 10
Setting range
Type
20
690 V
Fuse links1)
LV HRC
Type 3NA
DIAZED
Type 5SB
NEOZED
Type 5SE
gL/gG operational class
30
Rated operational current Ie AC-3 in A at
400 V
500 V
690 V
400 V
500 V
690 V
400 V
500 V
690 V
Type of coordination2)
1
2
Size S00
0.1 ... 0.4 A
0.32 ... 1.25 A
3RT20 15
3RT20 15
0.4
1.25
0.4
1.25
0.4
1.25
0.4
1.25
0.4
1.25
0.4
1.25
0.4
1.25
0.4
1.25
0.4
1.25
35
35
4
6
1 ... 4 A
3RT20 15
3RT20 16
3RT20 17
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
35
35
35
20
20
20
4 ... 16 A
3RT20 16
3RT20 17
3RT20 18
9
12
16
6.5
9
12.4
5.2
6.3
8.9
9
10
12.9
6.5
9
11.6
5.2
6.3
8.1
9
9
11.6
6.5
9
11.6
5.2
6.3
8.1
35
35
50
20
20
25
3 ... 12 A
3RT20 23
3RT20 24
3RT20 25
9
12
12
6.5
12
12
5.2
9
9
12
12
6.5
12
12
5.2
9
12
-12
12
-12
12
-9
12
63
63
63
25
25
25
10 ... 40
3RT20 24
3RT20 25
3RT20 26
3RT20 27
3RT20 28
12
17
25
32
38
12
17
18
32
32
9
13
13
21
21
12
16
16
18.6
22.4
12
16
16
18.6
22.4
9
13
13
15.1
18.2
12
14
14
16.2
19.6
12
14
14
16.2
19.6
9
13
13
15.1
18.2
63
63
100
125
125
25
25
35
50
50
3RT20 35
3RT20 36
3RT20 37
3RT20 38
3RT20 35
3RT20 36
3RT20 37
3RT20 38
40
50
50
50
40
50
65
80
40
50
50
50
40
50
65
80
24
24
47
50
24
24
47
58
40
45
48
49
40
45
48
49
40
45
48
49
40
45
48
49
24
24
47
49
24
24
47
49
36
38
42
43
36
38
42
43
36
38
42
43
36
38
42
43
36
24
42
43
36
24
42
43
160
160
250
250
160
160
250
250
80
80
125
160
80
80
125
160
Size S0
Size S2
12.5 ... 50 A
20 ... 80 A
Size S3
12.5 ... 50 A
3RT10 44
3RT10 45
50
50
50
50
47
50
49
50
49
50
47
50
41.7
45
41.7
45
41.7
45
200
200
125
160
25 ... 100 A
3RT10 44
3RT10 45
3RT10 46
3RT10 54
3RT10 55
65
80
95
100
--
65
80
95
100
--
47
58
58
100
--
49
53
59
81.7
100
49
53
59
81.7
100
47
53
58
81.7
100
41.7
45
50
69
90
41.7
45
50
69
90
41.7
45
50
69
90
200
200
200
355
355
125
160
160
315
315
3RT10 54
3RT10 55
3RT10 56
115
150
185
115
150
185
115
150
170
81.7
107
131
81.7
107
131
81.7
107
131
69
90
111
69
90
111
69
90
111
355
355
355
315
315
315
55 ... 250 A
3RT10 64
3RT10 65
3RT10 66
225
250
250
225
250
250
225
250
250
160
188
213
160
188
213
160
188
213
135
159
180
135
159
180
135
159
180
500
500
500
400
400
400
160 ... 630 A
3RT10 64
3RT10 65
3RT10 66
3RT10 75
3RT10 76
225
265
300
400
500
225
265
300
400
500
225
265
280
400
450
160
188
213
284
355
160
188
213
284
355
160
188
213
284
355
--180
240
300
--180
240
300
--180
240
300
500
500
500
630
630
400
400
400
400
500
3RT12 64
3RT12 65
3RT12 66
3RT12 75
3RT12 76
225
265
300
400
500
225
265
300
400
500
225
265
300
400
500
225
265
300
400
500
225
265
300
400
500
225
265
300
400
500
173
204
231
316
385
173
204
231
316
385
173
204
231
316
385
500
500
500
800
800
500
500
500
800
800
440
572
440
572
376
500
376
500
376
500
800
800
5004)
6304)
Size S6
50 ... 200 A
Size S10/S12
3TF683)
630
630
630
440
3TF693)
630
630
630
572
1) Please observe operational voltage.
2) Coordination and short-circuit equipment according to EN 60947-4-1:
Type of coordination 1: the contactor or starter must not endanger
persons or the installation in the event of a short-circuit.
They do not need to be suitable for further operation without repair and the
renewal of parts.
3/28
Type of coordination 2: the contactor or starter must not endanger
persons or the installation in the event of a short-circuit.
They must be suitable for further operation. There is a risk of contact welding.
3) Contactor cannot be mounted.
4) Please ensure that the maximum AC-3 operational current has sufficient
safety clearance from the rated current of the fuses.
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
SIRIUS
3RB2 / 3RB3 Solid-State Overload Relays
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
Characteristic curves
The smallest current used for tripping is called the minimum tripping current. According to IEC 60947-4-1, this current must be
within specified limits. The limits of the total tripping current for
the 3RB20/3RB21 solid-state overload relays for symmetrical
three-pole loads are between 105 % and 120 % of the set current.
Tripping characteristics for 3-pole loads
1000
800
600
Tripping time
The tripping characteristics show the relationship between the
tripping time and tripping current as multiples of the set current
Ie and are given for symmetrical three-pole and two-pole loads
from the cold state.
3…5s
CLASS 10
5 … 10 s
CLASS 20
10 … 20 s
CLASS 30
20 … 30 s
The tripping characteristic for a three-pole overload relay from
the cold state (see illustration 1) only apply if all three phases are
simultaneously loaded with the same current. In the event of a
phase failure the 3RB20/3RB21 solid-state overload relays
switch off the contactor more quickly in order to minimize heating
of the load in accordance with the tripping characteristic for twopole loads from the cold state (see illustration 2). With phase
unbalance the devices switch off depending on the reason for
the unbalance between the two characteristic curves.
Compared with a cold load, a load at operating temperature
obviously has a lower temperature reserve. The tripping time of
the 3RB2/3RB3 solid-state overload relays is reduced therefore to about 30 % when loaded with the set current Ie for an
extended period.
20
CLASS 30
10
8
6
CLASS 20
CLASS 10
4
CLASS 5
2
1
0,6
1
2
4
6
Tripping current
8 10×
e
Illustration 1
Tripping characteristics for 2-pole loads
1000
800
600
Tripping time
Tripping time
200
40
The tripping times according to IEC 60947-4-1, tolerance band
E, are as follows for:
CLASS 5
400
s
100
80
60
The tripping characteristic starts with the minimum tripping
current and continues with higher tripping currents based on the
characteristics of the so-called trip classes (CLASS 10,
CLASS 20 etc.). The trip classes describe time intervals within
which the overload relays have to trip with 7.2 times the set
current Ie from the cold state for symmetrical three-pole loads.
Trip class
NSB0_01525
NSB0_01526
400
s
200
100
80
60
40
20
CLASS 30
10
8
6
CLASS 20
4
CLASS 10
2
CLASS 5
1
0,6
1
2
4
6
Tripping current
8 10×
e
Illustration 2
The above illustrations are schematic representations of
characteristic curves.
Siemens Industry, Inc.
Industrial Controls Catalog
3/29
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
SIRIUS
• Revised •
10/18/15
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
Dimensional drawings
51
48
25
85
122
147
45
57
NSB0_01510
65
Ø11
73
Ø9
125
3RB30 16, 3RB31 13, size S00
NSB0_01518
145
6
61
156
NSB0_01511
71
3RB20 66, 3RB21 63, size S10/S12
45
108.7
103.7
55
84
48.8
3RB30 26, 3RB31 23, size S0
80.7
130
125.1
96
97
98
57
95
69.9
5.4
26.5
43.4
5
55
137.2
82.3
55
45
98.9
83.3
22.5
5
22.5
3RB30 36, 3RB31 33, size S2 with straight-through transformer
98
6/T3
103.3
113.1
Ø6
63
2
60
70
64
89
106
35
11
23
67
86
3RB30 36, 3RB31 33, size S2
64
4/T2
97
NSB0_01515
2/T1
96
51
95
Ø5
5
119
5
70
31
119
30
NSB0_01514
18
3RB20 46, 3RB21 43, size S3
37
79
17
34
60
79
95
60
79
95
99
119
62
Ø5
16
3RB20 46, 3RB21 43, size S3 with straight-through transformer
NSB0_01516
95
120
Ø7
3RB20 56, 3RB21 53, size S6
3/30
5
3
47
150
NSB0_01517
95
120
Ø7
5
73
150
3RB20 56, 3RB21 53, size S6 with straight-through transformer
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 / 3RB3 Solid-State Overload Relays
3RB20, 3RB21, 3RB30, 3RB31 up to 630A
for standard applications
Schematics
3RB30 16 overload relays
3RB30 26 to 3RB20 66 overload relays
3RB31 13 overload relays
3RB31 23 to 3RB21 63 overload relays
Siemens Industry, Inc.
Industrial Controls Catalog
3/31
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Overview
The modular, solid-state overload relays with external power
supply type 3RB22 (with monostable auxiliary contacts) and
type 3RB23 (with bistable auxiliary contacts) up to 630 A (up to
820 A possible with a series transformer) have been designed
for inverse-time delayed protection of loads with normal and
heavy starting (see Function) against excessive temperature
rises due to overload, phase unbalance or phase failure. An
overload, phase unbalance or phase failure result in an increase
of the motor current beyond the set motor rated current. This
current rise is detected by means of a current measuring module
and electronically evaluated by a special evaluation module
which is connected to it. The evaluation electronics sends a
signal to the auxiliary contacts. The auxiliary contacts then
switch off the load by means of the contactors control circuit. The
break time depends on the ratio between the tripping current
and set current Ie and is stored in the form of a long-term stable
tripping characteristic (see Characteristic Curves). The "tripped"
status is signaled by means of a continuous red "Overload" LED.
3RB22/3RB23 evaluation module
(1)Green "Ready" LED:
A continuous green light signals that the device is working correctly.
(2)Red "Ground Fault" LED:
A continuous red light signals a ground fault.
(3)Red "Thermistor" LED:
A continuous red light signals an active thermistor trip.
(4)Red "Overload" LED:
A continuous red light signals an active overload trip; a flickering red
light signals an imminent trip (overload warning).
(5)Motor current and trip class adjustment:
Setting the device to the motor current and to the required trip class
dependent on the starting conditions is easy with the two rotary knobs.
(6)Selector switch for manual/automatic RESET:
With this switch you can choose between manual and automatic
RESET.
(7)Test/RESET button:
Enables testing of all important device components and functions,
plus resetting of the device after a trip when manual RESET is
selected.
(8)Connecting terminals (removable terminal block):
The generously sized terminals permit connection of two conductors
with different cross-sections for the auxiliary, control and sensor
circuits. Connection is possible with screw-type terminals and alternatively with spring-loaded terminals.
(9)3RB29 85 function expansion module:
Enables more functions to be added, e.g. internal ground fault
detection and/or an analog output with corresponding signals.
The LED indicates imminent tripping of the relay due to overload,
phase unbalance or phase failure by flickering when the limit
current has been violated. This warning can also be used as a
signal through auxiliary contacts.
In addition to the described inverse-time delayed protection of
loads against excessive temperature rise, the 3RB22/3RB23
solid-state overload relays also allow direct temperature monitoring of the motor windings (full motor protection) by failsafe
connection of a PTC sensor circuit. With this temperature-dependent protection, the loads can be protected against overheating
caused indirectly by reduced coolant flow, for example, which
cannot be detected by means of the current alone. In the event
of overheating, the devices signal the contactor to switch off,
and thus the load, by means of the auxiliary contacts. The
"tripped" status is signaled by means of a continuous red "Thermistor" LED.
To also protect the loads against high-resistance short-circuits
due to damage to the insulation, humidity, condensed water,
etc., the 3RB22/3RB23 solid-state overload relays offer the possibility of internal ground fault monitoring in conjunction with a
function expansion module; not possible in conjunction with a
contactor assembly for Wye-Delta starting). In the event of a
ground fault the 3RB22/3RB23 relays trip instantaneously. The
"tripped" status is signaled by means of a red "Ground Fault"
LED. Signaling through auxiliary contacts is also possible.
After tripping due to overload, phase unbalance, phase failure,
thermistor tripping or ground fault, the relay may be reset
manually or automatically after the recovery time has elapsed
(see Function).
In conjunction with a function expansion module the motor current measured by the microprocessor can be output in the form
of an analog signal 4 ... 20 mA DC for operating rotary coil
instruments or for feeding into analog inputs of programmable
logic controllers. With an additional AS-Interface analog module
the current values can also be transferred over the AS-i bus
system.
The devices are manufactured in accordance with environmental guidelines and contain environmentally friendly and reusable
materials.
They comply with important worldwide standards and
approvals.
3RB29 06 current measuring module
3/32
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Benefits
The most important features and benefits of the 3RB22/3RB23
solid-state overload relays are listed in the overview table
(see Overload Relays, General Data).
Application
Industries
The 3RB22/3RB23 solid-state overload relays are suitable for
customers from all industries who want to provide optimum
inverse-time delayed and temperature-dependent protection of
their electrical loads (e.g. motors) under normal and heavy
starting conditions (CLASS 5 to CLASS 30), minimize project
completion times, inventories and power consumption, and
optimize plant availability and maintenance management.
Application
"Increased safety" type of protection EEx e according to
ATEX guideline 94/9/EC
The 3RB22/3RB23 solid-state overload relays are suitable for the
overload protection of explosion-proof motors with "increased
safety" type of protection EEx e. The relays meet the
requirements of EN 60079-7 (Electrical apparatus for potentially
explosive atmospheres – Increased safety "e").
When using 3RB23 solid-state overload relays for the protection
of EEx e motors, separate monitoring of the control supply
voltage is recommended.
The basic safety and health requirements of ATEX guideline
94/9/EG are fulfilled by compliance with
• EN 60947-1
• EN 60947-4-1
• EN 60947-5-1
• EN 60079-14
The 3RB22/3RB23 solid-state overload relays have been
designed for the protection of three-phase asynchronous and
single-phase AC motors.
EU type test certificate for Group II, Category (2) G/D under
application. Number on request.
If single-phase AC motors are to be protected by the
3RB22/3RB23 solid-state overload relays, the main circuits of
the current measuring modules must be series-connected.
Accessories
Ambient conditions
The devices are insensitive to external influences such as
shocks, corrosive environments, ageing and temperature
changes.
For the temperature range from –25 C to +60 °C, the
3RB22/3RB23 solid-state overload relays compensate the
temperature according to IEC 60947-4-1.
The following accessories are available for the 3RB22/3RB23
solid-state overload relays:
• A sealable cover for the evaluation module
• Box terminal blocks for the current measuring modules size S6
and S10/S12
• Terminal covers for the current measuring modules size S6
and S10/S12
• Push-in lugs for screw (panel) mounting the size S00 to S3
current measuring modules
Configuration notes for use of the devices below –25 °C or above
+60 °C on request.
Siemens Industry, Inc.
Industrial Controls Catalog
3/33
Overload Relays
3RB2 Solid-State Overload Relays
• Revised •
09/30/14
3RB22, 3RB23 for
high-feature applications
3RB22/3RB23 solid-state overload relays for full motor protection with screw connection or spring-loaded terminals
for stand-alone installation, CLASS 5, 10, 20 and 30 adjustable
Features and technical specifications:
• Overload protection, phase failure protection and unbalance
protection
• External power supply 24 ... 240 V AC/DC
• Auxiliary contacts 2 NO +2 NC
• Manual and automatic RESET
• Electrical remote RESET integrated
• 4 LEDs for operating and status displays
Size
Contactor
Version
• TEST function and self-monitoring
• Internal ground fault detection with function expansion
module
• Screw connection or spring-loaded terminals for auxiliary,
control and sensor circuits
• Input for PTC sensor circuit
• Analog output with function expansion module
Connection type
Order No.
Weight per
PU approx.
kg
Evaluation modules
S00 ... S12
Monostable
Screw connection
Bistable
3RB22 83-4AA1
0.300
Spring-loaded
terminals
3RB22 83-4AC1
0.300
Screw connection
3RB23 83-4AA1
0.300
3RB23 83-4AC1
0.300
Analog Basic 1 module1)
Analog output DC 4 ... 20 mA, with
overload warning
3RB29 85-2AA0
0.030
Analog Basic 1 GF module1)2)
Analog output DC 4 ... 20 mA, with
internal ground fault detection and
overload warning
3RB29 85-2AA1
0.030
Analog Basic 2 GF module1)2)
Analog output DC 4 ... 20 mA, with
internal ground fault detection and
ground fault signaling
3RB29 85-2AB1
0.030
Basic 1 GF module2)
with internal ground fault detection
and overload warning
3RB29 85-2CA1
0.030
Basic 2 GF module2)
with internal ground fault detection
and ground fault signaling
3RB29 85-2CB1
0.030
Spring-loaded
terminals
3RB2. 83-4AA1
3RB2. 83-4AC1
Function expansion modules
–
1) The analog signal 4 ... 20 mA DC can be used for operating rotary coil
instruments or for feeding into analog inputs of programmable logic
controllers.
2) The following information on ground fault protection refers to sinusoidal
residual currents at 50/60 Hz:
- With a motor current of between 0.3 and 2 times the set current Ie the unit
will trip at a ground fault current equal to 30% of the set current.
- With a motor current of between 2 and 8 times the set current Ie the unit
will trip at a ground fault current equal to 15% of the set current.
- The trip delay amounts to between 0.5 and 1 second.
Note: Analog input modules, e. g. SM 331, must be configured
for 4-wire measuring transducers. In this case the analog input
module must not supply current to the analog output of the
3RB22/ 3RB23 relay.
For accessories, see page 3/35
For description, see pages 3/32-3/33
For technical data, see pages 3/36-3/44.
For dimension drawings, see pages 3/45-3/46.
For schematic diagrams, see page 3/47.
3/34
Product Category: IEC
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
• Revised •
09/30/14
3RB22, 3RB23 for
high-feature applications
Current measuring modules for direct mounting1) and stand-alone installation1)2)
Size
Con-tactor3)
Set current value of the
inverse-time delayed overload trip
Order No.
A
Size S00/S02)4)
S00/S0
Weight per
PU approx.
kg
3RB29 06-2BG1
0.3 … 3
0.100
2.4 … 25
3RB29 06-2DG1
0.150
S2/S3
10 … 100
3RB29 06-2JG1
0.350
S6
20 … 200
with pass through CT’s
3RB29 56-2TG2
0.600
with busbar
3RB29 56-2TH2
1.000
3RB29 66-2WH2
1.750
3RB29 06-2.G1
Size S2/S32)4)
3RB29 06-2JG1
Size S61)4)
3RB29 56-2TG2
Size S10/S121)
S10/S12 and
size 14 (3TF68/
3TF69)
63 … 630
3RB29 66-2WH2
1) The current measuring modules with an Order No. ending with "2" are
designed for direct mounting and stand-alone installation. For
3TF68/3TF69 contactors, direct mounting is not possible.
2) The current measuring modules with an Order No. ending with "1" are
designed for stand-alone installation.
Size
Contactor
3) Observe maximum rated operational current of the devices.
4) The modules with an Order No. with "G" in 11th position are equipped with
a straight-through transformer.
Version
Order No.
Weight per
PU approx.
kg
Connecting cables (essential accessory)
S00 ... S12
For connection between evaluation module and current
measuring module
• Length 0.1 m
• Length 0.5 m
3RB29 87-2B
3RB29 87-2D
0.010
0.020
3RB29 87-2.
For description, see pages 3/36-3/37
For technical data, see pages 3/39-3/42.
For dimension drawings, see pages 3/45-3/46.
For schematic diagrams, see page 3/47,
For description, see pages 3/35-3/36, 3/40-3/42.
For technical data, see pages 3/43-3/48.
For dimension drawings, see pages 3/49-3/50.
For schematic
diagrams, see page 3/51.
Siemens Industry,
Inc.
Industrial Controls Catalog
3/35
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Design
Function
Device concept
Basic functions
The 3RB22/3RB23 solid-state overload relays are based on a
modular device concept. Each device always comprises an
evaluation module, which is independent of the motor current,
and a current measuring module, which is dependent on the motor current. The two modules are electrically interconnected by a
connection cable through the system interface.
The 3RB22/3RB23 solid-state overload relays are designed for:
• Inverse-time delayed protection of loads from overloading
• Inverse-time delayed protection of loads from phase
unbalance
• Inverse-time delayed protection of loads from phase failure
• Temperature-dependent protection of loads by connecting a
PTC sensor circuit
• Protection of loads from high-resistance short-circuits (internal
ground-fault detection; detection of fault currents > 30 % of
the set current Ie)
• Output of an overload warning
• Output of an analog signal 4 to 20 mA DC as image of the
flowing motor current
The basic functionality of the evaluation module can be optionally expanded with corresponding function expansion modules.
The function expansion modules are integrated in the evaluation
module for this purpose through a simple plug connection.
Mounting options
Current measuring modules
The current measuring modules size S00/S0 and S2/S3 are
designed for stand-alone installation. By contrast, the current
measuring modules size S6 and S10/S12 are suitable for
stand-alone installation or direct mounting.
The basic functions of the evaluation modules in conjunction
with function expansion modules are listed in the following table:
Function expansion module
Basic functions
The evaluation modules can be mounted either on the current
measuring module (only sizes S00/S0 and S2/S3) or separately.
Evaluation
module
3RB22 83-4AA1
None
Connection technique
3RB23 83-4AA1
Inverse-time delayed protection,
temperature-dependent protection,
electrical remote RESET,
overload warning
Main circuit (current measuring module)
3RB23 83-4AC1
3RB29 85-2CA1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
overload warning
3RB29 85-2CB1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
ground fault signal
3RB29 85-2AA0
Inverse-time delayed protection,
temperature-dependent protection,
electrical remote RESET,
overload warning,
analog output
3RB29 85-2AA1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
overload warning,
analog output
3RB29 85-2AB1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
ground fault signal,
analog output
Evaluation modules
3RB22 83-4AC1
For sizes S00/S0, S2/S3 and S6, the main circuit can also be
connected by the straight-through transformer method. In this
case, the cables of the main circuit are routed directly through
the feed-through openings of the relay to the contactor
terminals.
For sizes S6 and S10/S12, the main circuit can be connected
with the help of the Busbar. In conjunction with the corresponding box terminals, screw terminals are also available.
Auxiliary circuit (evaluation module)
Connection of the auxiliary circuit (removable terminal block) is
possible with either screw terminals or spring-loaded terminals.
Overload relays in contactor assemblies for
Wye-Delta starting
When overload relays are used in combination with contactor
assemblies for Wye-Delta starting it must be noted that only
0.58 times the motor current flows through the line contactor. An
overload relay mounted onto the line contactor must be set to
0.58 times the motor current.
When 3RB22/3RB23 solid-state overload relays are used in
combination with contactor assemblies for Wye-Delta starting,
the function expansion modules for internal ground-fault detection must not be used.
Operation with frequency converter
The 3RB22/3RB23 solid-state overload relays are suitable for
frequencies of 50/60 Hz and the associated harmonics. This
permits the 3RB22/3RB23 overload relays to be used on the
incoming side of the frequency converter.
If motor protection is required on the outgoing side of the frequency converter, the 3RN thermistor motor protection devices
or the 3RU11 thermal overload relays are available for this purpose.
Control circuit
The 3RB22/3RB23 solid-state overload relays require an external power supply (24–240 V AC/DC), i.e. an additional supply
voltage is necessary.
Short-circuit protection
Fuses or motor starter protectors must be used for short-circuit
protection. For assignments of the corresponding short-circuit
protection devices to the 3RB22/3RB23 solid-state overload relays with/without contactor see Technical Specifications and
Selection and Ordering Data.
Trip classes
The 3RB22/3RB23 solid-state overload relays are suitable for
normal and heavy starting. The required trip class (CLASS 5, 10,
20 or 30) can be adjusted by means of a rotary knob depending
on the current starting condition.
For details of the trip classes see Characteristic Curves.
3/36
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Phase failure protection
TEST function
The 3RB22/3RB23 solid-state overload relays are fitted with
phase failure protection (see Characteristic Curves) in order to
minimize temperature rises of the load during single-phase
operation.
The combined TEST/RESET button can be used to check
whether the relay is working correctly. The test can be aborted at
any time by letting go of the TEST/RESET button.
Setting
The 3RB22/3RB23 solid-state overload relays are set to the
motor rated current by means of two rotary knobs.
• The upper rotary knob (CLASS/Iemax) is divided into 4 ranges:
1 A, 10 A, 100 A and 1000 A. The zone must be selected
which corresponds to the rated motor current and the current
measuring module to be used with it. With the range selected
the required trip class (CLASS 5, 10, 20 or 30) can be determined.
• The lower rotary knob with percent scale (10 % ... 100 %) is
then used to set the rated motor current in percent of the range
selected with the upper rotary button.
LEDs, the device configuration (this depends on which expansion module is plugged in) and the device hardware are tested
while the button is kept pressed for 6 seconds. Simultaneously
and for another 18 seconds a direct current proportional in size
to the maximum phase of the main current is fed in at the terminals I(+) and I(-). By comparing the analog signal, which is to be
measured, with the main current, the accuracy of the current
measurement can be determined. In this case 4 mA corresponds to 0 % and 20 mA to 125 % of the set current. After
24 seconds the auxiliary contacts are switched and the feeder
switch off as the result, bringing the test to an end.
After a test trip a faultless relay is reset by pressing the
TEST/RESET button. If a hardware fault is detected, the device
trips and cannot be reset.
Example
• Rating of induction motor = 45 kW (50 Hz, 400 V AC)
• Rated motor current = 80 A
• Required trip class = CLASS 20
• Selected transformer: 10 to 100 A
Self-monitoring
Solution
• Step 1: Use the upper rotary knob (CLASS) to select the 100 A
range
• Step 2: Within the 100 A range set the trip class CLASS 20
• Step 3: Set the lower rotary knob to 80 % (= 0.8) of
100 A × 0.8 = 80 A.
The particular operating status of the 3RB22/3RB23 solid-state
overload relays is displayed by means of four LEDs:
• Green "Ready" LED: A continuous green light signals that the
overload relay is ready for operation. The 3RB22/3RB23 overload relays are not ready (LED "OFF") if there is no control
supply voltage or if the function test was negative.
• Red "Ground fault" LED: A continuous red light signals a
ground fault.
• Red "Thermistor" LED: A continuous red light signals a
temperature-dependent trip.
• Red "Overload" LED: A continuous red light signals an inversetime delayed trip; a flickering red light signals an imminent
inverse-time delayed trip (overload warning).
If the current which is set on the evaluation module does not
correspond to the current range of the connected current transformer, an error will result.
Manual and automatic reset
In the case of the 3RB22/3RB23 solid-state overload relays, a
slide switch can be used to choose between automatic and
manual resetting.
If manual reset is set, a reset can be carried out directly on the
device after a trip by pressing the blue TEST/RESET button.
A remote RESET can be carried out electrically by jumpering the
terminals Y1 and Y2.
If the slide switch is set to automatic RESET, the relay is reset
automatically.
The time between tripping and resetting is determined by the
recovery time.
Recovery time
With the 3RB22/3RB23 solid-state overload relays the recovery
time after inverse-time delayed tripping is approx. 3 minutes
regardless of the selected reset mode. The recovery time allows
the load to cool down.
However, in the event of temperature-dependent tripping by
means of a connected PTC thermistor sensor circuit, the device
can only be manually or automatically reset once the winding
temperature at the installation location of the PTC thermistor has
fallen 5 Kelvin below its response temperature.
After a ground fault trip the 3RB22/3RB23 solid-state overload
relay trips can be reset immediately without a recovery time.
Siemens Industry, Inc.
Industrial Controls Catalog
The 3RB22/3RB23 solid-state overload relays have a self-monitoring feature, i.e. the devices constantly monitor their own basic
functions and trip if an internal fault is detected.
Display of the operating status
Auxiliary contacts
The 3RB22/3RB23 solid-state overload relays have two outputs,
each with one NO contact and one NC contact. Their basic assignment/function may be influenced by function expansion
modules.
The 3RB22 and 3RB23 differ with respect to the tripping characteristics of their auxiliary contacts – monostable or bistable:
The monostable 3RB22 solid-state overload relays will enter the
"tripped" state if the control supply voltage fails (> 200 ms), and
return to the original state they were in before the control supply
voltage failed when the voltage returns. These devices are therefore especially suited for plants in which the control voltage is not
strictly monitored.
The bistable 3RB23 overload relays do not change their "tripped"
or "not tripped" status if the control voltage fails. The auxiliary
contacts only switch over in the event of an overload and if the
supply voltage is present. These devices are therefore especially suited for plants in which the control voltage is monitored
separately.
Response if the control supply voltage fails
If the control supply voltage fails for more than 0.2 s, the output
relays respond differently depending on the version: Monostable
or bistable.
3/37
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
high-feature applications
Response of the
output relays
in the event of
Monostable
Bistable
3RB22
3RB23
Failure of the control
supply voltage
The device trips
No change of the switching status of the auxiliary
contacts
Return of the control The device resets
supply voltage without previous tripping
No change of the switching status of the auxiliary
contacts
Return of the control
supply voltage after
previous tripping
The device remains
tripped
The device remains
tripped
Reset:
• For overload tripping,
after 3 minutes
• For thermistor tripping,
after the temperature
has fallen 5 K below the
response temperature
• For ground-fault tripping, immediately
Reset:
• For overload tripping,
after 3 minutes
• For thermistor tripping,
after the temperature
has fallen 5 K below the
response temperature
• For ground-fault tripping, immediately
Monostable and bistable responses of the output relays
3/38
Siemens Industry, Inc.
Industrial Controls Catalog
© Siemens AG 2015
Overload Relays
3RB2 Solid-State Overload
Relays
Overload Relays
SIRIUS 3RB2 Electronic Overload
Relays
3RB22, 3RB23
for
• Revised •
10/18/15
standard applications
3RB22, 3RB23 up to 630 A for High-Feature applications
Technical specifications
The following technical information is intended to provide an
initial overview of the various types of device and functions.
Detailed information, see
• Reference Manual "Protection Equipment – 3RU1, 3RB2
Overload Relays",
http://support.automation.siemens.com/WW/view/en/35681297
• or specific information on a particular article number via the
product data sheet,
http://support.automation.siemens.com/WW/view/en/20357046/133200
3RB2283-4A.1
S00 ... S10/S12
mm
W
3RB2383-4A.1
45 x 111 x 95
D
Dimensions of evaluation modules
(W x H x D)
H
Type – Overload relay: evaluation modules
Size contactor
General data
Trips in the event of
CLASS 5, 10, 20 and 30 adjustable
Phase failure sensitivity
Yes
Yes, from 1.125 x Ie for symmetrical loads
and from 0.85 x Ie for unsymmetrical loads
Overload warning
Reset and recovery
• Reset options after tripping
Manual, automatic and remote RESET
• Recovery time
- For automatic RESET
min.
- For manual RESET
min.
- For remote RESET
min.
- for tripping due to overcurrent: 3 (stored permanently)
- for tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- for tripping due to a ground fault: no automatic RESET
- for tripping due to overcurrent: 3 (stored permanently)
- for tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- for tripping due to a ground fault: Immediately
- for tripping due to overcurrent: 3 (stored permanently)
- for tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- for tripping due to a ground fault: Immediately
7
Trip class acc. to IEC 60947-4-1
Overload, phase failure and phase unbalance (> 40 % according to NEMA),
+ ground fault (with corresponding function expansion module) and activation of the
thermistor motor protection (with closed PTC sensor circuit)
Features
• Display of operating state on device
Yes, with four LEDs:
- green LED "Ready"
- red LED "Ground Fault"
- red LED "Thermistor"
- red LED "Overload"
Yes, test of LEDs, electronics, auxiliary contacts and wiring of control circuit by
pressing the button TEST/RESET / self-monitoring
Yes, with the TEST/RESET button
No
• TEST function
• RESET button
• STOP button
Protection and operation of explosion-proof motors
EC type test certificate number according to
directive 94/9/EC (ATEX)
PTB 05 ATEX 3022
II (2) GD,
-see
http://support.automation.siemens.com/WW/view/en/23115758
Ambient temperatures
• Storage/transport
°C
-40 ... +80
• Operation
°C
-25 ... +60
• Temperature compensation
°C
+60
• Permissible rated current
- Temperature inside control cabinet 60 °C
- Temperature inside control cabinet 70 °C
%
%
100
On request
Degree of protection acc. to IEC 60529
IP20: Current measuring modules in sizes S6 and S10/S12 with busbar connection
in conjunction with cover.
Touch protection acc. to IEC 61140
Finger-safe: Current measuring modules in sizes S6 and S10/S12 with busbar
connection in conjunction with cover.
Shock resistance with sine acc. to IEC 60068-2-27
g/ms
15/11
kV
2 (power ports), 1 (signal port)
kV
2 (line to earth), 1 (line to line)
kV
8 (air discharge), 6 (contact discharge)
V/m
10
Electromagnetic compatibility (EMC) – Interference immunity
• Conductor-related interference
- Burst acc. to IEC 61000-4-4
(corresponds to degree of severity 3)
- Surge acc. to IEC 61000-4-5
(corresponds to degree of severity 3)
• Electrostatic discharge according to IEC 61000-4-2
(corresponds to degree of severity 3)
• Field-related interference according to IEC 61000-4-3
(corresponds to degree of severity 3)
Electromagnetic compatibility (EMC) – emitted interference
Siemens Industry, Inc.
Industrial Controls Catalog
Degree of severity A according to EN 55011 (CISPR 11) and EN 55022 (CISPR 22)
Siemens IC 10 · 2015
3/39
7/137
Overload Relays
3RB2 Solid-State Overload Relays
• Revised •
10/18/15
3RB22, 3RB23 for
standard applications
Type – Overload relay of current measuring module
3RB29
3RB29
3RB29
3RB29
Width
45 mm
55 mm
120 mm
145 mm
Size
S00/S0
Main circuit
S2/S3
S6
Rated insulation voltage Ui (pollution degree 3)
V
1000
kV
6
8
Rated operational voltage Ue
V
690
1000
Rated impulse withstand voltage Uimp
Type of current
• Direct current
• Alternating current
1000
No
Yes, 50/60 Hz ± 5 % (other frequencies on request)
Set current
A
0.3 ... 3;
2.4 ... 25
Power loss per unit (max.)
W
0.5
Short-circuit protection
• With fuse without contactor
• With fuse and contactor
Safe isolation between main and auxiliary
conducting path according to IEC 60947-1
S10/S12
10 ... 100
20 ... 200
63 ... 630
See Selection and Ordering Data
See Technical Specifications (short-circuit protection with fuses for motor feeders)
V
6901)
Connection for main circuit
Electrical connection version
Screw terminal
• Terminal screw
• Tightening torque
• Conductor cross-sections (min./max.),
1 or 2 conductors
- Solid
- Finely stranded without end sleeve
Screw terminals with box terminal
---
4 mm Allen screw
10 ... 12
5 mm Allen screw
20 ... 22
m m2
mm2
---
-2 × (50 ... 185),
front clamping point only:
1 × (70 ... 240)
rear clamping point only:
1 × (120 ... 185)
- Finely stranded with end sleeve
mm2
--
- Stranded
mm2
--
- AWG conductors, solid or stranded
AWG
--
- Ribbon cable conductors
(number x width x circumference)
mm
--
-With 3RT19 55-4G box terminal:
2 × (1 × max. 50, 1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G box terminal:
2 × (1 × max. 95, 1 × max. 120),
1 × (10 ... 120)
With 3RT19 55-4G box terminal:
2 × (1 × max. 50, 1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G box terminal:
2 × (1 × max. 95, 1 × max. 120),
1 × (10 ... 120)
With 3RT19 55-4G box terminal:
2 × (max. 70),
1 × (16 ... 70)
With 3RT19 56-4G box terminal:
2 × (max. 120),
1 × (16 ... 120)
With 3RT19 55-4G box terminal:
2 × (max. 1/0),
1 × (6 ... 2/0)
With 3RT19 56-4G box terminal:
2 × (max. 3/0),
1 × (6 ... 250 kcmil)
With 3RT19 55-4G box terminal:
2 × (6 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ... 6 × 15.5 × 0.8)
With 3RT19 56-4G box terminal:
2 × (10 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ...
10 × 15.5 × 0.8)
M8 × 25
10 ... 14
M10 × 30
14 ... 24
16 ... 952)
25 ... 1202)
4 ... 250 kcmil
15
50 ... 2403)
70 ... 2403)
2/0 ... 500 kcmil
25
Busbar connections
• Terminal screw
• Tightening torque
• Conductor cross-section (min./max.)
- Solid with cable lug
- Stranded with cable lug
- AWG connections, solid or stranded, with cable lug
- With connecting bar (max. width)
Straight-through transformers
• Diameter of opening
• Conductor cross-section (max.)
- N YY
- H07RN-F
2 × (70 ... 240),
front clamping point only:
1 × (95 ... 300)
rear clamping point only:
1 × (120 ... 240)
2 × (2/0 ... 500 kcmil),
front clamping point only:
1 × (3/0 ... 600 kcmil)
rear clamping point only:
1 × (250 kcmil ... 500 kcmil)
2 × (20 × 24 × 0.5),
1 × (6 × 9 × 0.8 ...
20 × 24 × 0.5)
m m2
m m2
AWG
mm
--------
mm
7.5
14
25
--
mm2
mm2
4)
4)
4)
4)
120
70
---
Nm
1) For grounded networks, otherwise 600 V.
2) When connecting cable lugs according to DIN 46235, use the
3RT19 56-4EA1 terminal cover for conductor cross-sections from 95 mm2
to ensure phase spacing.
3/40
2 × (50 ... 185),
front clamping point only:
1 × (70 ... 240)
rear clamping point only:
1 × (120 ... 185)
3) When connecting cable lugs according to DIN 46234 for conductor crosssections from 240 mm2 as well as DIN 46235 for conductor cross-sections
from 185 mm2, use the 3RT19 56-4EA1 terminal cover to ensure phase
spacing.
4) On request.
Siemens Industry, Inc.
Industrial Controls Catalog
© Siemens AG 2015
3RB2 Solid-State Overload Relays
Overload
Relays
• Revised
•
SIRIUS 3RB2 Electronic Overload Relays
10/18/15
3RB22, 3RB23 up to 630 A for High-Feature applications
3RB2283-4A.1
S00 ... S10/S12
W
mm
45 x 111 x 95
%
100
3RB22, 3RB23 for
standard applications
3RB2383-4A.1
D
H
Type – Overload relay: evaluation modules
Size contactor
Dimensions of evaluation modules
(W x H x D)
Overload Relays
General data (continued)
Resistance to extreme climates – air humidity
"Dimensional drawings", see
• Reference Manual "Protection Equipment – 3RU1, 3RB2 Overload Relays",
http://support.automation.siemens.com/WW/view/en/35681297
• Product data sheet,
http://support.automation.siemens.com/WW/view/en/20357046/133200
Dimensions
Installation altitude above sea level
m
Up to 2 000
Any
Mounting position
Type of mounting
• Evaluation modules
• Current measuring module
Stand-alone installation
Size
S00 to S3: Stand-alone installation,
S6 and S10/S12: stand-alone installation or mounting onto contactors
Type – Overload relay: evaluation modules
3RB2283-4A.1, 3RB2383-4A.1
Size contactor
S00 ... S10/S12
7
Auxiliary circuit
Number of NO contacts
2
Number of NC contacts
2
Number of CO contacts
--
Auxiliary contacts – assignment
• Alternative 1
- 1 NO for the signal "tripped by overload and/or thermistor"
- 1 NC for disconnecting the contactor
- 1 NO for the signal "tripped by ground fault"
- 1 NC for disconnecting the contactor
or1)
• Alternative 2
- 1 NO for the signal "tripped by overload and/or thermistor and/or ground fault"
- 1 NC for disconnecting the contactor
- 1 NO for overload warning
- 1 NC for disconnecting the contactor
Rated insulation voltage Ui (pollution degree 3)
V
300
Rated impulse withstand voltage Uimp
kV
4
• NC contact with alternating current AC-14/AC-15,
rated operational current Ie at Ue
- 24 V
- 120 V
- 125 V
- 250 V
A
A
A
A
6
6
6
3
• NO contact with alternating current AC-14/AC-15,
rated operational current Ie at Ue
- 24 V
- 120 V
- 125 V
- 250 V
A
A
A
A
6
6
6
3
• NC contact, NO contact with direct current DC-13,
rated operational current Ie at Ue
- 24 V
- 60 V
- 110 V
- 125 V
- 250 V
A
A
A
A
A
2
0.55
0.3
0.3
0.2
• Conventional thermal current Ith
A
5
Auxiliary contacts – contact rating
Yes
• Contact reliability
(suitability for PLC control; 17 V, 5 mA)
Short-circuit protection
• With fuse, operational class gG
A
6
• With miniature circuit breaker, C characteristic
A
1.6
Protective separation between auxiliary current paths
acc. to IEC 60947-1
V
300
CSA, UL, UR rated data
Auxiliary circuit – switching capacity
1)
B300, R300
The assignment of auxiliary contacts may be influenced by function
expansion modules.
Siemens Industry, Inc.
Industrial Controls Catalog
Siemens IC 10 · 2015
7/138
3/41
© Siemens AG 2015
Overload Relays
3RB2 Solid-State Overload Relays
Overload
Relays
• Revised
•
SIRIUS 3RB2 Electronic Overload Relays
3RB22, 3RB23 for
standard applications
10/18/15
3RB22, 3RB23 up to 630 A for High-Feature applications
Type – Overload relay: evaluation modules
3RB2283-4A.1, 3RB2383-4A.1
Size contactor
S00 ... S10/S12
Control circuit
Rated insulation voltage Ui
(pollution degree 3)
V
300
Rated impulse withstand voltage Uimp
kV
4
• 50/60 Hz AC
V
24 ... 240
• DC
V
24 ... 240
Rated control supply voltage Us
Operating range
• 50/60 Hz AC
0.85 × Us min ≤ Us ≤ 1.1 × Us max
• DC
0.85 × Us min ≤ Us ≤ 1.1 × Us max
Rated power
• 50/60 Hz AC
W
0.5
• DC
W
0.5
Mains buffering time
ms
200
• Summation cold resistance
kΩ
≤ 1.5
• Response value
kΩ
3.4 ... 3.8
• Return value
kΩ
1.5 ... 1.65
Sensor circuit
Thermistor motor protection (PTC thermistor sensor)
The information refers to sinusoidal residual currents at 50/60 Hz.
• Tripping value IΔ1)
- For 0.3 × Ie < Imotor < 2.0 × Ie
- For 2.0 × Ie < Imotor < 8.0 × Ie
> 0.3 × Ie
> 0.15 × Imotor
• Response time ttrip
ms
500 ... 1 000
mA
4 ... 20
7
Ground-fault detection
Analog output1)2)
Rated values
• Output signal
0 ... 1.25 × Ie
4 mA corresponds to 0 × Ie
16.8 mA corresponds to 1.0 × Ie
20 mA corresponds to 1.25 × Ie
• Measuring range
• Load, max.
Ω
100
Conductor cross-sections for the auxiliary, control and
sensor circuit as well as the analog output
Connection type
Screw terminals
M3, Pozidriv size 2
Terminal screw
Operating devices
mm
3.0 x 0.5
Prescribed tightening torque
Nm
0.8 ... 1.2
Conductor cross-sections (min./max.),
1 or 2 conductors can be connected
• Solid or stranded
mm2
2
1 × (0.5 ... 4)3), 2 × (0.5 ... 2.5)3)
• Finely stranded without end sleeve
mm
--
• Finely stranded with end sleeve (DIN 46228-1)
mm2
1 × (0.5 ... 2.5)3), 2 × (0.5 ... 1.5)3)
• AWG cables, solid or stranded
AWG
2 × (20 ... 14)
Spring-type terminals
Connection type
mm
3.0 x 0.5
• Solid or stranded
mm2
2 × (0.25 ... 1.5)
• Finely stranded without end sleeve
mm2
--
• Finely stranded with end sleeve (DIN 46228-1)
mm2
2 × (0.25 ... 1.5)
• AWG cables, solid or stranded
AWG
2 × (24 ... 16)
Operating devices
Conductor cross-sections (min./max.),
1 or 2 conductors can be connected
1)
For the 3RB22 and 3RB23 overload relays in combination with a
corresponding function expansion module.
2)
Analog input modules, e.g. SM 331, must be configured for 4-wire
measuring transducers. In this case the analog input module must not
supply current to the analog output of the 3RB22 and 3RB23 relay.
3)
If two different conductor cross-sections are connected to one clamping
point, both cross-sections must be in the range specified.
3/42
Siemens IC 10 · 2015
Siemens Industry, Inc.
Industrial Controls Catalog
7/139
Overload Relays
3RB2 Solid-State Overload Relays
• Revised •
10/25/15
3RB22, 3RB23 for
standard applications
Short-circuit protection with fuses for motor feeders
For short-circuit currents up to 50 kA at 400 to 690 V
Overload relays
Contactor
CLASS
5 and 10
Setting range
Type
20
690 V
Fuse links1)
LV HRC
Type 3NA
DIAZED
Type 5SB
NEOZED
Type 5SE
gL/gG operational class
30
Rated operational current Ie AC-3 in A at
400 V
500 V
690 V
400 V
500 V
690 V
400 V
500 V
690 V
Type of coordination2)
1
2
Size S00/S0
0.3 ... 3 A
3RT20 15
3RT20 16
3
3
3
3
3
3
2.4 ... 25 A
3RT20 15
3RT20 16
3RT20 17
7
9
12
5
6.5
9
4
5.2
6.3
3RT20 23
3RT20 24
3RT20 25
3RT20 26
9
12
17
25
6.5
12
17
18
3RT20 35
3RT20 36
On request
On request
3RT10 44
3RT10 45
3RT10 46
On request
On request
On request
3RT10 54
3RT10 55
On request
On request
3RT10 54
3RT10 55
3RT10 56
115
150
185
3RT10 64
3RT10 65
3RT10 66
3
3
3
3
3
3
3
3
3
3
3
3
35
35
20
20
7
9
10
5
6.5
9
4
5.2
6.3
7
9
9
5
6.5
9
4
5.2
6.3
35
35
35
20
20
20
5.2
9
13
13
9
12
16
16
6.5
12
16
16
5.2
9
13
13
-12
14
14
-12
14
14
-9
13
13
63
63
63
100
25
25
25
35
115
150
185
115
150
170
81.7
107
131
81.7
107
131
81.7
107
131
69
90
111
69
90
111
69
90
111
355
355
355
315
315
315
225
265
300
225
265
300
225
265
280
160
188
213
160
188
213
160
188
213
135
159
180
135
159
180
135
159
180
500
500
500
400
400
400
3RT10 75
3RT10 76
400
500
400
500
400
450
284
355
284
355
284
355
240
300
240
300
240
300
630
630
400
500
3RT12 64
3RT12 65
3RT12 66
225
265
300
225
265
300
225
265
300
225
265
300
225
265
300
225
265
300
173
204
231
173
204
231
173
204
231
500
500
500
500
500
500
3RT12 75
3RT12 76
400
500
400
500
400
500
400
500
400
500
400
500
316
385
316
385
316
385
800
800
800
800
3TF683)
3TF693)
630
630
630
630
630
630
440
572
440
572
440
572
376
500
376
500
376
500
800
800
5004)
6304)
Size S2/S3
On request
Size S6
20 ... 200 A
Size S10/S12
160 ... 630 A
1) Please observe operational voltage.
2) Coordination and short-circuit equipment according to EN 60947-4-1:
Type of coordination 1: the contactor or starter must not endanger
persons or the installation in the event of a short-circuit.
They do not need to be suitable for further operation
without repair and the renewal of parts.
Type of coordination 2: the contactor or starter must not endanger
persons or the installation in the event of a short-circuit.
They must be suitable for further operation.
There is a risk of contact welding.
3) Contactor cannot be mounted.
4) Please ensure that the maximum AC-3 operational current has sufficient
safety clearance from the rated current of the fuses.
Siemens Industry, Inc.
Industrial Controls Catalog
3/43
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Characteristic curves
The smallest current used for tripping is called the minimum
tripping current. According to IEC 60947-4-1, this current must
be within specified limits. The limits of the minimum tripping
current for the 3RB22/3RB23 solid-state overload relays for
symmetrical three-pole loads are between 105 % and 120 % of
the set current.
Tripping characteristics for 3-pole loads
1000
800
600
Tripping time
The tripping characteristics show the relationship between the
tripping time and tripping current as multiples of the set current
Ie and are given for symmetrical three-pole and two-pole loads
from the cold state.
3…5s
CLASS 10
5 … 10 s
CLASS 20
10 … 20 s
CLASS 30
20 … 30 s
The tripping characteristic for a three-pole overload relay from
the cold state (see illustration 1) only apply if all three phases are
simultaneously loaded with the same current. In the event of a
phase failure or a current unbalance of more than 40 %, the
3RB22/3RB23 solid-state overload relays switch off the contactor more quickly in order to minimize heating of the load in
accordance with the tripping characteristic for two-pole loads
from the cold state (see illustration 2).
Compared with a cold load, a load at operating temperature obviously has a lower temperature reserve. The tripping time of the
3RB22/3RB23 solid-state overload relays are reduced therefore
to about 30 % when loaded with the set current Ie for an
extended period.
20
CLASS 30
10
8
6
CLASS 20
CLASS 10
4
CLASS 5
2
1
0,6
1
2
4
6
Tripping current
8 10×
e
Illustration 1
Tripping characteristics for 2-pole loads
1000
800
600
Tripping time
Tripping time
200
40
The tripping times according to IEC 60947-4-1, tolerance band
E, are as follows for:
CLASS 5
400
s
100
80
60
The tripping characteristic starts with the minimum tripping
current and continues with higher tripping currents based on the
characteristics of the so-called trip classes (CLASS 10,
CLASS 20 etc.). The trip classes describe time intervals within
which the overload relays have to trip with 7.2 times the set
current Ie from the cold state for symmetrical three-pole loads.
Trip class
NSB0_01525
NSB0_01526
400
s
200
100
80
60
40
20
CLASS 30
10
8
6
CLASS 20
4
CLASS 10
2
CLASS 5
1
0,6
1
2
4
6
Tripping current
8 10×
e
Illustration 2
The above illustrations are schematic representations of
characteristic curves. The characteristic curves of the individual
3RB22/3RB23 solid-state overload relays can be requested from
Technical Assistance at the following e-mail address:
[email protected]
3/44
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Dimensional drawings
30
59
86
4
45
5
NSB0_01519
80
106
12
5
36
3RB22 83-4, 3RB23 83-4 evaluation module
3RB29 06-2BG1, 3RB29 06-2DG1 current measuring module
3RB29 06-2JG1 current measuring module
3RB29 56-2TG2 current measuring module
Siemens Industry, Inc.
Industrial Controls Catalog
3/45
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
3RB29 56-2TH2 current measuring module
3RB29 66-2WH2 current measuring module
3/46
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
• Revised •
09/30/14
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Schematics
Protection of single-phase motors
(not in conjunction with internal ground-fault detection)
3RB29 06-2.G1, 3RB29 56-2TG2
3RB29 56-2TH2, 3RB29 66-2WH2
Schematic representation of a possible application (3-phase)
Siemens Industry, Inc.
Industrial Controls Catalog
3/47
Overload Relays
3RB2 Solid-State Overload Relays
3RB22, 3RB23 for
standard applications
Connections
Evaluation module
Function expansion module
Basic function s
I nputs
A1/A2
T1/T2
Y1/Y2
3RB22 83-4AA1
None
Inverse-time delayed protection,
temperature-dependent protection,
electrical remote RESET,
overload warning
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2CA1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
overload warning
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2CB1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
ground fault signal
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2AA0
Inverse-time delayed protection,
temperature-dependent protection,
electrical remote RESET,
overload warning, analog output
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2AA1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
overload warning, analog output
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
3RB29 85-2AB1
Inverse-time delayed protection,
temperature-dependent protection,
internal ground-fault detection,
electrical remote RESET,
ground fault signal, analog output
Power supply
24 ... 240 V AC/DC
Connection for
PTC sensor
Electrical
remote RESET
Evaluation module
Function expansion module
Outputs
I (–) / I (+)
95/96 NC
05/06 NC
07/08 NO
3RB22 83-4AA1
None
No
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection)
Overload warning
Overload warning
3RB29 85-2CA1
No
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection + ground
fault)
Overload warning
Overload warning
3RB29 85-2CB1
No
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection)
Switching off the
contactor (ground
fault)
Signal
"ground fault trip"
3RB29 85-2AA0
Analog signal
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection)
Overload warning
Overload warning
3RB29 85-2AA1
Analog signal
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection + ground
fault)
Overload warning
Overload warning
3RB29 85-2AB1
Analog signal
Switching off the
Signal
contactor (inverse"tripped"
time delayed/temperature-dependent protection)
Switching off the
contactor (ground
fault)
Signal
"ground fault trip"
3RB22 83-4AC1
3RB23 83-4AA1
3RB23 83-4AC1
3RB22 83-4AC1
3RB23 83-4AA1
3RB23 83-4AC1
3/48
97/98 NO
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2/3RB3 Solid-State Overload Relays
• Revised •
04/20/15
Accessories
Overview
Overload relays for standard applications
Overload relays for high-feature applications
The following accessories are available for the 3RB2/3RB3
solid-state overload relays:
• One terminal bracket each for the overload relays size S00
and S0 (sizes S2 to S12 can be installed as single units without
a terminal bracket)
• One mechanical RESET module for all sizes
• One cable release for resetting devices which are difficult to
access (for all sizes)
• One sealable cover for all sizes
• Box terminal blocks for sizes S6 and S10/S12
• Terminal covers for sizes S2 to S10/S12
The following accessories are available for the 3RB22/3RB23
solid-state overload relays:
• A sealable cover for the evaluation module
• Box terminal blocks for the current measuring modules size S6
and S10/S12
• Terminal covers for the current measuring modules size S6
and S10/S12
• Push-in lugs for screw mounting the size S00 to S3 current
measuring modules
Selection and ordering data
Version
Size
Order No.
Weight
per PU
approx.
kg
Terminal brackets for stand-alone installation 1) 2)
Screw
terminals
S00
S0
S2
S3
3RU29 16-3AA01
3RU29 26-3AA01
3RU29 36-3AA01
3RU19 46-3AA01
0.04
0.05
0.18
0.28
Spring
Loaded
terminals
S00
S0
3RU29 16-3AC01
3RU29 26-3AC01
0.04
0.06
Resetting plungers, holders and formers
S00 to S2
S3 to S12
3RB39 80-0A
3RU19 00-1A
0.030
0.038
Pushbuttons with extended stroke
(12 mm), IP65, Ø 22 mm
S3 to S12
3SB30 00-0EA11
0.021
Extension plungers
For compensation of the distance between a pushbutton
and the unlatching button of the relay
S3 to S12
3SX1 335
0.004
Complete mechanical reset assembly
S3 to S12
3SBES-RESET
3RB39 80-0B
For separate mounti ng of the overload relay
panel mount or snapped onto
35 mm standard mounting rail,
size S3 also for 75 mm standard mounting rail
3RU29.6-3AA01
Mechanical RESET 1) 2)
3RU19 00-1A
with pushbutton and
extension plunger
Cable releases with holder for RESET 1) 2)
For holes with Ø 6.5 mm
in the mounting plate;
max. control panel thickness 8 mm
• Length 400 mm
S00 to S2
• Length 600 mm
• Length 400 mm
S00 to S2
S3 to S12
• Length 600 mm
S3 to S12
3RB39 80-0C
3RU19 00-1B
3RU19 00-1C
0.060
0.073
0.063
0.073
3RU19 00-1.
1) Accessories with a prefix of 3RB39 are intended for 3RB20/3RB30 overload relays only.
2) Only for 3RB20/3RB21. The accessories are identical to those of the
3RU1/3RU2 thermal overload relays.
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: IEC
3/49
Overload Relays
3RB2 Solid-State Overload Relays
• Revised •
04/20/15
Accessories
Version
Size
Order No.
List
Price $
Pack
Units
Weight per
PU approx.
kg
Sealable covers
For covering the setting knobs
3RB3984-0
Terminal covers
S00 to S2
• For 3RB20/3RB21
S3 to S12
• For 3RB22 to 3RB24
–
3RB29 84-2
• Length 100 mm
S6
3RT19 56-4EA1
• Length 120 mm
S10/S12
3RT19 66-4EA1
0.124
3RT29 36-4EA2
0.016
Covers for cable lugs and rail connection
Covers for box terminals
3RT19 46-4EA1
3RB39 84-0
• For 3RB30/3RB31
3RB29 84-0
10 units
0.003
10 units
0.020
10 units
0.050
0.067
• Length 20.6 mm1)
S2
• Length 20.8 mm1)
S3
• Length 25 mm
S6
• Length 30 mm
S10/S12
3RT19 66-4EA2
0.038
S6
3RT19 56-4EA3
0.021
Covers for screw connections
between contactor and overload relay,
without box terminals
The figures show
mounting on the contactor (1 unit required per combination)
3RT19 36-4EA2
3RT19 46-4EA2
0.023
3RT19 56-4EA2
0.028
S10/S12
3RT19 66-4EA3
0.062
3RT19 55-4G
0.237
Box terminal blocks
For round and ribbon cables
up to 70 mm2 2/0 AWG
S62)
up to 120mm2 4/0 AWG
S6
up to 240mm2 500 mcm
S10/S12
3RT19 66-4G
For screw fixing of 3RB22/3RB23
overload relays
--
3RP19 03
10 units
0.002
For screw mounting of 3RB29 06 current
measuring modules
(2 units are required per module)
S00 ... S3
3RB19 00-0B
10 units
0.100
3RT19 56-4G
0.270
0.676
For conductor cross-sections,
see LV 1 T "Technical Specifications"
3RT19 5.-4G
Push-in lugs
3RP19 03
3RB19 00-0B
For more accessories (tools for spring-loaded terminals and labeling
plates), see page 3/57.
1) Only for 3RB20/3RB21. The accessories are identical to those of the
3RU11 thermal overload relays.
2) In the scope of supply for 3RT10 54-1 contactors (55 kW).
3/50
Product Category: IEC
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
3RB2 Solid-State Overload Relays
Accessories
Overview
Overload relays for standard applications
Overload relays for High-Feature applications
The following accessories are available for the 3RB20/3RB21
solid-state overload relays:
• One terminal bracket each for the overload relays size S00
and S0 (sizes S2 to S12 can be installed as stand-alone
installation without a terminal bracket)
• One mechanical remote RESET module for all sizes
• One cable release for resetting devices which are difficult to
access (for all sizes)
• One sealable cover for all sizes
• Box terminal blocks for sizes S6 and S10/S12
• Terminal covers for sizes S2 to S10/S12
The following accessories are available for the 3RB22/3RB23
solid-state overload relays:
• A sealable cover for the evaluation module
• Box terminal blocks for the current measuring modules size S6
and S10/S12
• Terminal covers for the current measuring modules size S6
and S10/S12
Technical specifications
Terminal brackets for stand-alone installation
Type
3RB29 13-0AA1
3RB29 23-0AA1
For overload relay
3RB20 16, 3RB21 13
3RB20 26, 3RB21 23
Size
S00
S0
Type of mounting
For screw and snap-on mounting onto TH35 standard mounting rail
Connection for main circuit
Screw terminal
Connection type
Screw terminal
• Terminal screw
Pozidriv size 2
Nm
0.8 ... 1.2
2 ... 2.5
- So l i d
mm 2
1 × (0.5 ... 2.5),
Max. 1 × (... 4)
1 × (1 ... 6),
Max. 1 × (... 10)
• Tightening torque
• Conductor cross-section (min./max.), 1 or 2 conductors
- Finely stranded without end sleeve
mm2
--
--
- F inely stranded with end sleeve
mm 2
1 × (0.5 ... 2.5)
1 × (1 ... 6)
- Stranded
m m2
1 × (0.5 ... 2.5),
Max. 1 × (... 4)
1 × (1 ... 6),
Max. 1 × (... 10)
- AWG conductors, solid or stranded
AWG
1 × (18 ... 14)
1 × (14 ... 10)
Siemens Industry, Inc.
Industrial Controls Catalog
3/51
OverloadRelays
Relays
Overload
3RB24
OverloadOverload
Relays Relays
SIRIUSSolid-State
3RB2 Solid-State
3RB24 for IO-Link, up to 630 A
3RB24 for IO-Link, up to 630 A
for
applications
for High-Feature
High-Feature applications
NSB0_02180
Overview
break time depends on the ratio between the tripping current
and current setting Ie and is stored in the form of a long-term stable tripping characteristic see www.siemens.com/sirius/support
"Characteristic Curves"). The "tripped" status is signaled by
means of a continuously illuminated red "OVERLOAD" LED and
also reported as a group fault via IO-Link.
The LED indicates imminent tripping of the relay due to overload,
phase unbalance or phase failure by flickering when the limit
current has been violated. This warning can also be reported to
the higher-level PLC via IO-Link at the 3RB24 overload relay.
Green LED "DEVICE/IO-Link:
A continuous green light signals that the device is working
correctly, a green flickering light signals the communication
through IO-Link.
Red LED "GND FAULT":
A continuous red light signals an active ground-fault trip.
7
Red LED "THERMISTOR":
A continuous red light signals an active thermistor trip.
Red LED "OVERLOAD":
A continuous red light signals an active overload trip; a flickering
red light signals an imminent trip (overload warning).
Motor current and trip class setting:
Setting the device to the motor current and to the required trip
class dependent on the start-up conditions is easy with the two
rotary switches.
Selector switch for manual/automatic RESET:
With this switch you can choose between manual and automatic
RESET.
Test/RESET button:
Enables testing of all important device components and functions,
plus resetting of the device after a trip when manual RESET is
selected.
Connecting terminals (removable terminal block):
The generously sized terminals permit connection of two
conductors with different cross-sections for the auxiliary, control
and sensor circuits. Connection is possible with screw connection
and alternatively with spring-type connection.
Plug-in point for operator panel:
enables connection of the 3RA69 35-0A operator panel.
SIRIUS 3RB24 evaluation module
The modular electronic overload relay 3RB24, which is powered
via IO-Link (with monostable auxiliary contacts) up to 630 A (up
to 820 A possible with a series transformer) have been designed
for inverse-time delayed protection of loads with normal and
heavy starting ("Function" see "Manual for SIRIUS 3RB24 SolidState Overload Relay for IO-Link",) against excessive temperature rises due to overload, phase unbalance or phase failure. It
comprises an evaluation unit, a current measuring module and
a connecting cable. The evaluation module 3RB24 also offers an
motor starter function: The contactors, which are connected via
the auxiliary contacts, can also be actuated for operation via
IO-Link. In this way, direct, reversing and star-delta starters up to
630 A (or 830 A) can be connected to the controller wirelessly
via the IO-Link controller.
An overload, phase unbalance or phase failure result in an increase of the motor current beyond the set rated motor current.
This current rise is detected by means of the current measuring
module (see page 7/134) and electronically evaluated by the
evaluation module which is connected to it. The evaluation electronics sends a signal to the auxiliary contacts. The auxiliary
contacts then switch off the load by means of a contactor. The
3/52
7/128
Siemens IC 10 · 2012
In addition to the described inverse-time delayed protection of
loads against excessive temperature rises, the 3RB24 solidstate overload relays also allow direct temperature monitoring of
the motor windings (full motor protection) by connection with
broken-wire interlock of a PTC sensor circuit. With this temperature-dependent protection, the loads can be protected against
overheating caused indirectly by reduced coolant flow, for example, which cannot be detected by means of the current alone.
In the event of overheating, the devices switch off the contactor,
and thus the load, by means of the auxiliary contacts. The
"tripped" status is signaled by means of a continuously illuminated "THERMISTOR" LED and also reported as a group fault via
IO-Link.
To the loads against incomplete ground faults due to damage to
the insulation, humidity, condensation, etc., to protect the electronic overload relay 3RB24 offer the possibility of internal
ground-fault detection (for details see "Manual for SIRIUS 3RB24
Solid-State Overload Relay for IO-Link",, not possible in conjunction with contactor assembly for wye-delta starting). In the event
of a ground fault, the 3RB24 relays trip instantaneously.
The "tripped" status is signaled by means of a flashing red LED
"Ground Fault" and reported at the overload relay 3RB24 as a
group fault via IO-Link.
The reset after overload, phase unbalance, phase failure, thermistor or ground-fault tripping is performed manually by key on
site, via IO-Link or by electrical remote RESET or automatically
after the cooling time (motor model) or for thermistor protection
after sufficient cooling. Power cuts in devices due to function
monitoring (broken wire or short circuit on the thermistor) can
only be reset on-site ("Function" see "Manual for SIRIUS 3RB24
Solid-State Overload Relay for IO-Link",). In conjunction with a
function expansion module, the motor current measured by the
microprocessor can be output in the form of an analog signal DC
4 to 20 mA for operating rotary coil instruments or for feeding
into analog inputs of programmable logic controllers.
The current values can be transmitted to the higher-level controller via IO-Link.
The devices are manufactured in accordance with environmental guidelines and contain environmentally friendly and reusable
materials.
They comply with all important worldwide standards and approvals.
Type of protection "increased safety EEx e and explosionproof enclosure EEx d" in accordance with ATEX Directive
94/9/EC
The electronic overload relay 3RB24 (monostable) are suitable
for the overload protection of explosion-proof motors of types of
protection EEx e and EEx d.
They comply with the requirements of EN 60079-7 (Electrical apparatus for areas subject to explosion hazards - Increased
safety "e" as well as for flameproof enclosure "d");
see www.siemens.com/sirius/atex.
EC type test certificate for Group II, Category (2) G/D has been
submitted. On request.
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
Overload Relays
3RB24 Solid-State Overload Relays
• Revised •
10/18/15
SIRIUS 3RB2 Solid-State
Overload Relays
3RB24 for IO-Link, up to 630 A
3RB24
for IO-Link, applications
up to 630 A
for High-Feature
for High-Feature applications
Order No. scheme
Digit of the Order No.
1st - 3rd
4th
5th
6th
7th
@@@
@
@
@
@
Solid-state overload relays
3RB
SIRIUS 2nd generation
Device series
2
–
8th
9th 10th 11th
@
@
@
@
Size, rated operational current and power
@
Version of the automatic RESET, electrical remote RESET
@
Trip class (CLASS)
@
Setting range of the overload release
@
Connection methods
Installation type
@
@
@
Example
3RB
Note:
The Order No. scheme is presented here merely for information
purposes and for better understanding of the logic behind the
order numbers.
2
4
8
3
–
4
A
A
1
For your orders, please use the order numbers quoted in the
catalog in the Selection and ordering data.
Benefits
Advantages through energy efficiency
We offer you a unique portfolio for industrial energy management, using an energy management system that helps to optimally define your energy needs. We split up our industrial energy management into three phases – Identification, Evaluation
and Realization – and we support you with the appropriate hardware and software solutions in every process phase.
IC0
1_ 0
0 24
4
The innovative products of the SIRIUS industrial controls portfolio can also make a substantial contribution to a plant's energy
efficiency (see www.siemens.com/sirius/energysaving).
Overview of the energy management process
3RB24 solid-state overload relays for IO-Link contribute to energy efficiency throughout the plant as follows:
• Transmission of current values
• Reduced inherent power loss
• Less heating of the control cabinet
• Smaller control cabinet air conditioners can be used
Application
Industries
The 3RB24 solid-state overload relays are suitable for customers
from all industries who want to guarantee optimum inverse-time
delayed and temperature-dependent protection of their electrical loads (e.g. motors) under normal and heavy starting conditions (CLASS 5 to 30), minimize project completion times, inventories and energy consumption, and optimize plant availability
and maintenance management.
If single-phase AC motors are to be protected by the 3RB24
solid-state overload relays, the main current paths of the current
measuring modules must be series-connected ("Schematics"
see "Manual for SIRIUS 3RB24 Solid-State Overload Relay for
IO-Link",).
Ambient conditions
Application
The devices are insensitive to external influences such as
shocks, corrosive ambient conditions, ageing and temperature
fluctuations.
The 3RB24 solid-state overload relays have been designed for
the protection of three-phase asynchronous and single-phase
AC motors.
For the temperature range from –25 C to +60 °C, the 3RB24
solid-state overload relays compensate the temperature in accordance with IEC 60947-4-1.
In addition to protection function, these devices can be used together with contactors as direct or reversing starters (star-delta
(wye-delta) start also possible), which are controlled via IO-Link.
This makes it possible to directly control drives via IO-Link from
a higher-level controller or on site via the optional hand-held device lamps and also, for example, to return current values directly via IO-Link.
Configuration notes for use of the devices below –25 °C or
above +60 °C on request.
3/53
Siemens Industry, Inc.
Industrial Controls Catalog
Siemens IC 10 · 2012
7/129
7
The most important features and benefits of the 3RB24 solidstate overload relays for IO-Link are listed in the overview table
(see "General Data", page 3/2 onwards).
Overload Relays
3RB24 Solid-State Overload Relays
Overload Relays
SIRIUS 3RB2 Solid-State Overload Relays
3RB24 for IO-Link, up to 630 A
for High-Feature applications
3RB24 for IO-Link, up to 630 A
for High-Feature applications
Selection and ordering data
3RB24 solid-state overload relays (evaluation module) for full motor protection, stand-alone installation,
CLASS 5, 10, 20 and 30, adjustable
3RB24 83-4A.1
Type
Features and technical specifications
Overload protection, phase failure protection and unbalance protection
Supplied from an external voltage
24 V DC through IO-Link
Direct-on-line or reversing starters (wye-delta starting also possible) controllable through IO-Link
Auxiliary contacts
1 CO and 1 NO in series
Manual and automatic RESET
Remote-RESET
(electrically or via IO-Link)
4 LEDs for operating and status displays
TEST function and self-monitoring
Internal ground-fault detection
Screw or spring-type terminals for auxiliary, control and sensor circuits
Input for PTC sensor circuit
Analog output
IO-Link-specific functions
• Connection of direct-on-line, reversing and star-delta starters to the controller via IO-Link
• On-site controlling of the starter using the hand-held device
• Accessing process data (e.g. current values in all three phases) via IO-Link
7
• Accessing parameterization and diagnostics data (e.g. tripped signals) via IO-Link
Available
PU (UNIT, SET, M) = 1
PS*
= 1 unit
PG
= 41G
3RB24 83-4AA1
Size of
contactor
3RB24 83-4AC1
Version
Screw terminals
Order No.
Evaluation modules
S00 ... S12
Monostable
3RB24 83-4AA1
Spring-type terminals
Price
per PU
Order No.
Price
per PU
3RB24 83-4AC1
Notes:
• Analog input modules, e.g. SM 331, must be configured for
. transducers. The analog input module may
4-wire measuring
not supply current to the analog output of the 3RB24 relay.
3/54
* You can order this quantity or a multiple thereof.
Illustrations are approximate
Current
Current measuring
measuring modules
modules and
and related
related connecting
connectingcables
cablessee
see
page
page 3/55,
3/55, accessories
accessories see
see pages
pages3/56
3/56 and
and 3/57.
3/57.
Siemens Industry, Inc.
Controls Catalog
Siemens IC 10 · 2012 Industrial
7/133
Overload Relays
Overload Relays
3RB24 Solid-State Overload Relays
SIRIUS 3RB2 Solid-State Overload Relays
Current measuring modules for
3RB22, 3RB23, 3RB24
Current measuring modules for
3RB22, 3RB23, 3RB24
Selection and ordering data
Current measuring modules for mounting onto contactor1) and stand-alone installation1)2) (essential accessories)
Size contactor3)
Sizes S00/S02)6)
S00/S0
Rating for
induction
motor,4)
Current setting of the
inverse-time
delayed
overload
release
Short-circuit protection with fuse,
type of coordination "2", operational class gG5)
kW
A
A
For overload
relays
DT
Order No.
Price
per PU
PU
(UNIT,
SET, M)
Pack
Units
PG
3RB22 to }
3RB24
}
3RB29 06-2BG1
1
1 unit
41G
3RB29 06-2DG1
1
1 unit
41G
315
3RB22 to }
3RB24
3RB29 06-2JG1
1
1 unit
41G
315
3RB22 to }
3RB24
3RB29 56-2TH2
1
1 unit
41G
3RB22 to }
3RB24
3RB29 56-2TG2
1
1 unit
41G
3RB22 to }
3RB24
3RB29 66-2WH2
1
1 unit
41G
0.09 … 1.1 0.3 … 3
20
1.1 … 11
2.4 … 25
63
5.5 … 45
10 … 100
11 … 90
S6 with
busbar
connection
20 … 200
3RB29 06-2.G1
Sizes S2/S32)6)
S2/S3
7
3RB29 06-2JG1
Size S61)6)
3RB29 56-2TG2
Sizes S10/S121)
For mounting to S6
contactors
with box
terminals
S10/S12
and
size 14
(3TF68/
3TF69)
37 … 450
63 … 630
800
3RB29 66-2WH2
3)
Note:
The connecting cable between the current measuring module
and the evaluation module is not included in the scope of supply; please order separately.
1)
The current measuring modules with an Order No. ending with "2" are
designed for mounting onto contactor and stand-alone installation. For
3TF68/3TF69 contactors, direct mounting is not possible.
2)
The current measuring modules with an Order No. ending with "1" are
designed for stand-alone installation.
4)
Observe maximum rated operational current of the devices.
Guide value for 4-pole standard motors at 50 Hz 400 V AC. The actual
starting and rated data of the motor to be protected must be considered
when selecting the units.
5)
Maximum protection by fuse for overload relay, type of coordination "2".
"Fuse Values in Connection with Contactors" see
- "Configuration Manual for Configuring SIRIUS – Selection Data for Load
Feeders in Fuseless and Fused Designs"
- "Configuration Manual for Configuring SIRIUS Innovations – Selection
Data for Load Feeders in Fuseless and Fused Designs".
6)
The modules with an Order No. with "G" in penultimate position are
equipped with a straight-through transformer.
Accessories
Size of con- Version
tactor
For overDT
load relays
Order No.
Price
per PU
PU
(UNIT,
SET, M)
Pack
Units
PG
Connecting cables (necessary accessories)
For connection between evaluation module
and current measuring module
S00 ... S3
3RB29 87-2.
3RB24,
• Length 0.1 m
(only for mounting of the evaluation mod- 3RB29
ule directly onto the current measuring
module)
S00 ... S12 • Length 0.5 m
3RB24,
3RB29
}
3RB29 87-2B
1
1 unit
41F
}
3RB29 87-2D
1
1 unit
41F
Additional general
generalaccessories
accessoriessee
seepage
page3/57.
3/57.
Additional
Siemens Industry, Inc.
Industrial Controls Catalog
7/136
3/55
Siemens IC 10 · 2012
* You can order this quantity or a multiple thereof.
Illustrations are approximate
Overload Relays
Overload Relays
SIRIUS 3RB2 Solid-State Overload Relays
3RB24 Solid-State Overload Relays
Accessories for 3RB22, 3RB23, 3RB24
Accessories for 3RB22, 3RB23, 3RB24
Overview
Overload relays for High-Feature applications
The following optional accessories are available for the 3RB22 to
3RB24 solid-state overload relays:
• Operator panel for the evaluation modules 3RB24
• Manual 3RB24
• Sealable cover for the evaluation modules 3RB22 to 3RB24
• Terminal covers for the 3RB29 current measuring modules
sizes S6 and S10/S12
• Box terminal blocks for the 3RB29 current measuring modules
sizes S6 and S10/S12
• Push-in lugs for screw fixing for 3RB22 to 3RB24 evaluation
modules and 3RB29 06 current measuring modules
Selection and ordering data
Accessories for overload relay 3RB24
Version
For over- DT
load relays
Order No.
PU
(UNIT,
SET, M)
Pack
Units
PG
3RB24
A
3RA69 35-0A
1
1 unit
42F
3RB24
}
3UF79 33-0BA00-0
1
1 unit
42J
3RB24
A
3RA69 36-0A
1
1 unit
42F
3RB24
A
1
5 units
42F
Operator panels for evaluation modules
3RA69 35-0A
Operator panels (set)
1 set comprises:
• 1 x operator panel
• 1 x 3RA69 36-0A enabling module
• 1 x 3RA69 33-0B interface cover
• 1 x fixing terminal
Price
per PU
Connecting cable
Length 2 m (round),
for connecting the evaluation module to the
operator panel
Enabling modules (replacement)
Interface covers
1)
The manual is also available as a free PDF download on the Internet at
www.siemens.com/sirius/support
"Manuals/Operating Instructions".
3/56
* You can order this quantity or a multiple thereof.
Illustrations are approximate
7
Note:
The connecting cable between the evaluation
module and the operator panel is not included
in the scope of supply; please order separately.
3RA69 33-0B
Additional general accessories see next page.
Siemens Industry, Inc.
Controls Catalog
Siemens IC 10 · 2012 Industrial
7/137
Overload Relays
Overload Relays
3RB24 Solid-State Overload Relays
• Revised
SIRIUS
3RB2• Solid-State Overload Relays
10/18/15
Accessories for 3RB22, 3RB23, 3RB24
Accessories for 3RB22, 3RB23, 3RB24
General accessories
Version
Size
For overload relays
Order No.
--
3RB22 to
3RB24
• Length 100 mm
S6
3RB29 56
• Length 120 mm
S10/S12
3RB29 66
3RT19 66-4EA1
3RT19 56-4EA2
Sealable covers for evaluation modules
For covering the setting knobs
PU
(UNIT,
SET, M)
Pack
Units
3RB29 84-2
1
10 units
3RT19 56-4EA1
1
1 unit
1
1 unit
1
1 unit
1
1 unit
1
1 unit
3RB29 84-2
Terminal covers for current measuring modules
Covers for cable lugs and busbar connections
Covers for box terminals
• Length 25 mm
S6
3RB29 56
• Length 30 mm
S10/S12
3RB29 66
Covers for screw terminals
between contactor and overload relay,
without box terminals
(1 unit required per combination)
S6
3RB29 56
S10/S12
3RB29 66
3RT19 66-4EA3
1
1 unit
S61)
3RB29 56
3RT19 55-4G
1
1 unit
S6
3RB29 56
1
1 unit
S10/S12
3RB29 66
3RT19 66-4G
1
1 unit
1
10 units
100
10 units
PU
(UNIT,
SET, M)
Pack
Units
1
1 unit
3RT19 66-4EA2
3RT19 56-4EA3
Box terminal blocks for current measuring modules
For round and ribbon cables
7
• Up to 70 mm2
• Up to 120
mm2
• Up to 240 mm2
3RT19 56-4G
Technical specifications for conductor cross-sections see "Reference
Manual for Protection Equipment–
3RU1, 3RB2 Overload Relays".
3RT19 5.-4G
Push-in lugs for evaluation modules and current measuring modules
For screw fixing the evaluation modules
--
3RB22 to
3RB24
3RP19 03
For screw fixing the current measuring
modules
(2 units per module)
S00 ... S3
3RB29 06
3RB19 00-0B
Color
For overload relays
Order No.
3RP19 03
3RB19 00-0B
1)
In the scope of supply for 3RT10 54-1 contactors (55 kW).
Version
Size
Tools for opening spring-type terminals
3RA29 08-1A
Length approx. 200
Screwdrivers
mm,
For all SIRIUS
devices with spring- 3.0 mm x 0.5 mm
type terminals
Titanium
gray/
black,
partially
insulated
Main and
3RA29 08-1A
auxiliary circuit connection: 3RB2
Unit labeling
plates1)
for SIRIUS devices
20 mm x 7 mm
Titanium
gray
3RB24
3RT29 00-1SB20
100
340 units
20 mm x 7 mm
Pastel
turquoise
3RB22,
3RB23
3RT29 00-1SB20
100
340 units
NSB0_01429b
Blank labels
Spring-type
terminals
3RT19 00-1SB20
1)
PC labeling system for individual inscription
of unit labeling plates available from:
murrplastik Systemtechnik GmbH
(see "Appendix"
"External Partners").
3/57
Siemens Industry, Inc.
Industrial Controls Catalog
7/138
Siemens IC 10 · 2012
* You can order this quantity or a multiple thereof.
Illustrations are approximate
OverloadRelays
Relays
Overload
SIRIUSSolid-State
3RB2 Solid-State
3RB24
OverloadOverload
Relays Relays
3RB24
IO-Link, up
upto
to630
630AA
3RB24 for
for IO-Link,
for High-Feature
High-Feature applications
for
applications
Technical specifications
Type – Overload relay of evaluation modules
3RB24 83-4A.1
Size of contactor
S00 ... S10/S12
General data
Trips in the event of
Trip class acc. to IEC 60947-4-1
Overload, phase failure and phase unbalance (> 40 % according to NEMA),
+ ground fault (connectable and disconnectable) and activation of the thermistor motor protection (with closed PTC sensor circuit)
CLASS 5, 10, 20 and 30 adjustable
Phase failure sensitivity
Yes
Yes, from 1.125 x Ie for symmetrical loads
and from 0.85 x Ie for unsymmetrical loads
Overload warning
Reset and recovery
• Reset options after tripping
• Recovery time
- For automatic RESET
Manual and automatic RESET, electrical remote RESET or through IO-Link
min
- For manual RESET
min
- For remote RESET
min
Features
• Display of operating state on device
- for tripping due to overcurrent: 3 (stored permanently)
- for tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- for tripping due to a ground fault: no automatic RESET
- for tripping due to overcurrent: 3 (stored permanently)
- for tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- for tripping due to a ground fault: Immediately
- for tripping due to overcurrent: 3 (stored permanently)
- for tripping by thermistor: time until the motor temperature has fallen 5 K
below the response temperature
- for tripping due to a ground fault: Immediately
7
Yes, with 4 LEDs
- Green LED "DEVICE/IO-Link"
- Red "Ground Fault" LED
- Red "Thermistor" LED
- Red "Overload" LED
Yes, test of LEDs, electronics, auxiliary contacts and wiring of control circuit by
pressing the button TEST/RESET / self-monitoring
Yes, with the TEST/RESET button
No
• TEST function
• RESET button
• STOP button
Explosion protection – Safe operation of motors with "increased
safety EEX e and explosion-proof
enclosure EEx d" type of protection
EC type test certificate number according to
directive 94/9/EC (ATEX)
Ambient temperatures
• Storage/transport
• Operation
• Temperature compensation
• Permissible rated current
- Temperature inside control cabinet 60 °C
- Temperature inside control cabinet 70 °C
On request
°C
°C
°C
-40 ... +80
-25 ... +60
+60
%
%
100
On request
Repeat terminals
• Coil repeat terminals
• Auxiliary contact repeat terminal
Not required
Not required
Degree of protection acc. to IEC 60529
IP20: Current measuring modules in sizes S6 and S10/S12 with busbar
connection in conjunction with the cover
Touch protection acc. to IEC 61140
Finger-safe: Current measuring modules in sizes S6 and S10/S12 with busbar
connection in conjunction with the cover
Shock resistance with sine acc. to IEC 60068-2-27
Electromagnetic compatibility (EMC) – Interference immunity
• Conductor-related interference
- Burst acc. to IEC 61000-4-4 (corresponds to degree of severity 3)
- Surge acc. to IEC 61000-4-5 (corresponds to degree of severity 3)
• Electrostatic discharge according to IEC 61000-4-2
(corresponds to degree of severity 3)
• Field-related interference according to IEC 61000-4-3
(corresponds to degree of severity 3)
g/ms
15/11
kV
kV
kV
2 (power ports), 1 (signal ports)
2 (line to earth), 1 (line to line)
8 (air discharge), 6 (contact discharge)
V/m
10
Electromagnetic compatibility (EMC) – emitted interference
Resistance to extreme climates – air humidity
Degree of severity A according to EN 55011 (CISPR 11) and
EN 55022 (CISPR 22)
%
Dimensions
"Dimensional drawings" see "Manual for SIRIUS 3RB24 Solid-State Overload
Relay for IO-Link".
Installation altitude above sea level
m
Mounting position
Type of mounting
• Evaluation modules
• Current measuring module
3/58
7/130
100
Siemens IC 10 · 2012
Up to 2 000
Any
Size
Stand-alone installation
S00 to S3: Stand-alone installation,
S6 and S10/S12: stand-alone installation or mounting onto contactors
Siemens Industry, Inc.
Industrial Controls Catalog
Overload
OverloadRelays
Relays
3RB24Solid-State
Solid-StateOverload
OverloadRelays
Relays
SIRIUS 3RB2
• Revised •
10/18/15
3RB24
for IO-Link,
IO-Link,up
upto
to630
630AA
3RB24 for
for
High-Feature
applications
for High-Feature applications
Type – Overload relay of evaluation modules
3RB24 83-4A.1
Size of contactor
S00 ... S10/S12
H
mm
W
45 x 111 x 95
D
Dimensions of evaluation modules (W x H x D)
Auxiliary circuit
Number of auxiliary switches
1 CO contact, 1 NO contact connected in series internally
Auxiliary contacts – assignment
Rated insulation voltage Ui (pollution degree 3)
Rated impulse withstand voltage Uimp
• 1 CO contact for selecting the contactor (for reversing starter function), actuated by the control system
• 1 NO contact for normal switching duty, actuated by the control system (opens automatically when tripping occurs)
V
300
kV
4
Auxiliary contacts – contact rating
• NO contact with alternating current AC-14/AC-15, rated operational current Ie at Ue
- 24 V
A
- 120 V
A
- 125 V
A
- 250 V
A
• NC contact, NO contact with direct current DC-13, rated operational current Ie at Ue
- 24 V
A
- 60 V
A
- 110 V
A
- 125 V
A
- 250 V
A
• Conventional thermal current Ith
A
• Contact reliability (suitability for PLC control; 17 V, 5 mA)
6
6
6
3
6
6
6
3
2
0.55
0.3
0.3
0.2
7
• NC contact with alternating current AC-14/AC-15, rated operational current Ie at Ue
- 24 V
A
- 120 V
A
- 125 V
A
- 250 V
A
5
Yes
Short-circuit protection
• With fuse, operational class gG
A
6
• With miniature circuit breaker, C characteristic
A
1.6
Protective separation between auxiliary conducting paths
acc. to IEC 60947-1
V
300
CSA, UL, UR rated data
Auxiliary circuit – switching capacity
B300, R300
Conductor cross-sections of the auxiliary circuit
Connection type
Screw terminals
Terminal screw
Operating devices
M3, Pozidriv size 2
mm
3.0 x 0.5
Prescribed tightening torque
Nm
0.8 ... 1.2
• Solid
mm2
1 × (0.5 ... 4)1), 2 × (0.5 ... 2.5)1)
• Finely stranded without end sleeve
mm2
--
• Finely stranded with end sleeve
mm2
1 × (0.5 ... 2.5)1), 2 × (0.5 ... 1.5)1)
• Stranded
mm2
--
• AWG cables, solid or stranded
AWG
2 × (20 ... 14)
Conductor cross-sections (min./max.), 1 or 2 conductors can be connected
Connection type
Spring-type terminals
Operating devices
mm
3.0 x 0.5
• Solid
mm2
2 × (0.25 ... 1.5)
• Finely stranded without end sleeve
mm2
–
• Finely stranded with end sleeve
mm2
2 × (0.25 ... 1.5)
• AWG cables, solid or stranded
AWG
2 × (24 ... 16)
Conductor cross-sections (min./max.), 1 or 2 conductors can be connected
1) If two different conductor cross-sections are
connected to one clamping point, both
cross-sections must be in the range specified
Siemens Industry, Inc.
Industrial Controls Catalog
3/59
Siemens IC 10 · 2012
7/131
OverloadRelays
Relays
Overload
SIRIUSSolid-State
3RB2 Solid-State
3RB24
OverloadOverload
Relays Relays
• Revised •
10/18/15
3RB24
IO-Link, up
upto
to630
630AA
3RB24 for
for IO-Link,
for High-Feature
High-Feature applications
for
applications
Type – Overload relay of evaluation modules
3RB24 83-4A.1
Size of contactor
S00 ... S10/S12
Control and sensor circuit as well as the analog output
Rated insulation voltage Ui
(pollution degree 3)
V
300
Rated impulse withstand voltage Uimp
kV
4
• DC
V
24 through IO-Link
Rated control supply voltage Us
Operating range
0.85 × Us min ≤ Us ≤ 1.1 × Us max
• DC
Rated power
• DC
W
0.5
Mains buffering time
ms
200
• Summation cold resistance
kΩ
≤ 1.5
• Response value
kΩ
3.4 ... 3.8
• Return value
kΩ
1.5 ... 1.65
Thermistor motor protection (PTC thermistor detector)
Ground-fault detection
The information refers to sinusoidal residual currents at 50/60 Hz.
• Tripping value I∆
- For 0.3 × Ie < Imotor < 2.0 × Ie
- For 2.0 × Ie < Imotor < 8.0 × Ie
> 0.3 × Ie
> 0.15 × Imotor
• Response time ttrip
ms
500 ... 1 000
• Output signal
mA
4 ... 20
Ω
100
7
Analog output1)
• Measuring range
• Load, max.
Conductor cross-sections for the control and sensor circuit
as well as the analog output
0 ... 1.25 × Ie
4 mA corresponds to 0 × Ie
16.8 mA corresponds to 1.0 × Ie
20 mA corresponds to 1.25 × Ie
Connection type
Screw terminals
Terminal screw
Operating devices
Prescribed tightening torque
Conductor cross-sections (min./max.), 1 or 2 conductors can be connected
M3, Pozidriv size 2
mm
3.0 x 0.5
Nm
0.8 ... 1.2
• Solid
mm2
1 × (0.5 ... 4)2), 2 × (0.5 ... 2.5)2)
• Finely stranded without end sleeve
mm2
—
• Finely stranded with end sleeve
mm2
1 × (0.5 ... 2.5)2), 2 × (0.5 ... 1.5)2)
• Stranded
mm2
—
• AWG cables, solid or stranded
AWG
2 × (20 ... 14)
Connection type
Operating devices
Conductor cross-sections (min./max.), 1 or 2 conductors can be connected
Spring-type terminals
mm
3.0 x 0.5
• Solid
mm2
2 × (0.25 ... 1.5)
• Finely stranded without end sleeve
mm2
—
• Finely stranded with end sleeve
mm2
2 × (0.25 ... 1.5)
• Stranded
mm2
2 × (0.25 ... 1.5)
• AWG cables, solid or stranded
AWG
2 × (24 ... 16)
1)
Analog input modules, e.g. SM 331, must be configured for 4-wire measuring
transducers. The analog input module may not supply current to the
analog output of the 3RB24 overload relay.
2) If
two different conductor cross-sections are connected to one clamping
point, both cross-sections must be in the range specified.
3/60
7/132
Siemens IC 10 · 2012
Siemens Industry, Inc.
Industrial Controls Catalog
Overload Relays
Overload Relays
3RB24 Solid-State Overload Relays
SIRIUS 3RB2 Solid-State Overload Relays
Current measuring modules for
3RB22, 3RB23, 3RB24
Current measuring modules for
3RB22, 3RB23, 3RB24
Overview
The current measuring modules are designed as system components for connecting to evaluation units 3RB22 to 3RB24. Using these evaluation units the motor current is measured and the
measured value sent to the evaluation unit for evaluation. The
current measuring modules in sizes S00 to S3 up to 55 mm wide
are equipped with straight-through transformers and can be
snap-fitted under the evaluation units. The larger evaluation units
are installed directly on the contactor or as stand-alond units.
SIRIUS 3RB29 06 current measuring module
Technical specifications
Type – Overload relays: Current measuring
modules
7
S00/S0
S2/S3
3RB29 56
3RB29 66
S6
S10/S12
mm
45 x 84 x 45 55 x 94 x 72 120 x 119 x 145
Rated insulation voltage Ui
(pollution degree 3)
V
1 000
Rated impulse withstand voltage Uimp
kV
6
V
1 000
W
D
Dimensions of current measuring modules
(W x H x D)
H
Size of contactor
3RB29 06
145 x 147 x 148
Main circuit
Rated operational voltage Ue
8
Type of current
• Direct current
No
• Alternating current
Yes, 50/60 Hz ± 5 %
Current setting
A
0.3 ... 3;
2.4 ... 25
Power loss per unit (max.)
W
0.5
10 ... 100
20 ... 200
63 ... 630
Short-circuit protection
• With fuse without contactor
See "Selection and ordering data" on page 3/55.
• With fuse and contactor
See
- "Configuration Manual for Configuring SIRIUS – Selection Data for
Load Feeders in Fuseless and Fused Designs"
- "Configuration Manual for Configuring SIRIUS Innovations – Selection
Data for Load Feeders in Fuseless and Fused Designs"
Protective separation between main and auxiliary conducting paths V
acc. to IEC 60947-1 (pollution degree 2)
Siemens Industry, Inc.
Industrial Controls Catalog
7/134
690 for grounded networks, otherwise 600
3/61
Siemens IC 10 · 2012
Overload Relays
Overload Relays
3RB24 Solid-State Overload Relays
SIRIUS 3RB2 Solid-State Overload Relays
Current measuring modules for
3RB22, 3RB23, 3RB24
Current measuring modules for
3RB22, 3RB23, 3RB24
Type – Overload relays: Current measuring
modules
S00/S0
Dimensions of current measuring modules
(W x H x D)
W
D
H
Size of contactor
3RB29 06
mm
Conductor cross-sections of the main circuit
Operating devices
Prescribed tightening torque
3RB29 66
S6
S10/S12
45 x 84 x 45 55 x 94 x 72 120 x 119 x 145
Connection type
Terminal screw
S2/S3
3RB29 56
145 x 147 x 148
Screw terminals with box terminal
mm
—
4 mm Allen screw
5 mm Allen screw
mm
—
4 mm Allen screw
5 mm Allen screw
Nm
—
10 ... 12
20 ... 22
Conductor cross-sections (min./max.), 1 or 2 conductors can be connected
• Solid
mm2
—
—
—
• Finely stranded without end sleeve
mm2
—
With 3RT19 55-4G
box terminal:
2 × (1 × max. 50,
1 × max. 70),
1 × (10 ... 70)
With 3RT19 56-4G
box terminal:
2 × (1 × max. 95,
1 × max. 120),
1 × (10 ... 120)
2 × (50 ... 185),
rear clamping point
only:
1 × (70 ... 240)
With 3RT19 55-4G
box terminal:
2 × (1 × max. 50,
1 × max. 70),
1 × (10 ... 70)
2 × (50 ... 185),
rear clamping point
only:
1 × (70 ... 240)
With 3RT19 56-4G
box terminal:
2 × (1 × max. 95,
1 × max. 120),
1 × (10 ... 120)
Rear clamping point
only:
1 × (120 ... 185)
With 3RT19 55-4G
box terminal:
2 × (max. 70),
1 × (16 ... 70)
2 × (70 ... 240),
rear clamping point
only:
1 × (95 ... 300)
With 3RT19 56-4G
box terminal:
2 × (max. 120),
1 × (16 ... 120)
Rear clamping point
only:
1 × (120 ... 240)
With 3RT19 55-4G
box terminal:
2 × (max. 1/0),
1 × (6 ... 2/0)
2 × (2/0 ... 500 kcmil),
rear clamping point
only:
1 × (3/0 ... 600 kcmil)
• Stranded
• AWG cables, solid or stranded
mm2
mm2
AWG
—
—
—
With 3RT19 56-4G
box terminal:
2 × (max. 3/0),
1 × (6 ... 250 kcmil)
• Ribbon cables (number x width x thickness)
mm
—
With 3RT19 55-4G
box terminal:
2 × (6 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ...
6 × 15.5 × 0.8)
7
• Finely stranded with end sleeve
Rear clamping point
only:
1 × (120 ... 185)
Rear clamping point
only:
1×
(250 kcmil ... 500 kcmil)
2 × (20 × 24 × 0.5),
1 × (6 × 9 × 0.8 ...
20 × 24 × 0.5)
With 3RT19 56-4G
box terminal:
2 × (10 × 15.5 × 0.8),
1 × (3 × 9 × 0.8 ...
10 × 15.5 × 0.8)
Connection type
Busbar connections
Terminal screw
Prescribed tightening torque
Nm
—
M8 × 25
M10 x 30
—
10 ... 14
14 ... 24
Conductor cross-sections (min./max.), 1 or 2 conductors can be connected
• Solid with cable lug
mm2
—
16 ... 951)
50 ... 2402)
• Stranded with cable lug
mm2
—
25 ... 1201)
70 ... 2402)
• AWG cable, solid or stranded, with cable lug
AWG
—
4 ... 250 kcmil
2/0 ... 500 kcmil
• with connecting bar (max. width)
mm
—
17
25
Connection type
Diameter of opening
1)
Straight-through transformers
mm
When connecting cable lugs according to DIN 46235 with conductor
cross-sections of 95 mm2 and more, the 3RT19 56-4EA1 terminal cover
must be used to ensure phase spacing.
7.5
2)
14
25
—
When connecting cable lugs according to DIN 46234 with conductor
cross-sections of 240 mm2 and more as well as to DIN 46235 with conductor cross-sections of 185 mm2 and more, the 3RT19 56-4EA1 terminal
cover must be used for to keep the phase clearance.
3/62
Siemens IC 10 · 2012
Siemens Industry, Inc.
Industrial Controls Catalog
7/135
© Siemens AG 2015
SIMOCODE 3UF Motor Management and Control Devices
• Revised •
10/18/15
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE
SIMOCODEpro
pro3UF7
3UF7
motor management and control devices
General data
■ Overview
Expansion
possibilities
SIMOCODE
pro C
pro S
pro V1)
PROFIBUS
PROFIBUS
PROFIBUS2) PROFINET
Operator panels
✓
✓
✓
✓
Operator panels
with display
--
--
✓
✓
Current measuring
modules
✓
✓
✓
✓
Current/voltage
measuring
modules
--
--
✓
✓
Decoupling
modules
--
--
✓
✓
• Digital modules
--
--
2
2
• Fail-safe digital
modules3)
--
--
1
1
• Analog modules
--
--
1
2
• Ground-fault
modules
--
--
1
1
• Temperature
modules
--
--
1
2
• Multifunction
modules
--
1
--
--
Expansion
modules:
SIMOCODE pro is a flexible, modular motor management
system for motors with constant speeds in the low-voltage
performance range. It optimizes the connection between I&C
and motor feeder, increases plant availability and allows significant savings to be made for installation, commissioning, operation and maintenance of a system.
When SIMOCODE pro is installed in the low-voltage switchboard, it is the intelligent interface between the higher-level
automation system and the motor feeder and includes the
following:
• Multifunctional, electronic full motor protection that is
independent of the automation system
• Integrated control functions instead of hardware for the motor
control
• Detailed operating, service and diagnostics data
• Open communication through PROFIBUS DP, PROFINET and
OPC UA
• Safety relay function for the fail-safe disconnection of motors
up to SIL 3 (IEC 61508, IEC 62061) or PL e with Category 4
(EN ISO 13849-1)
• SIMOCODE ES is the software package for SIMOCODE pro
parameterization, start up and diagnostics.
Device series
SIMOCODE pro is structured into several functionally tiered
series:
• SIMOCODE pro C, as a compact system for direct-on-line
starters and reversing starters or for controlling a motor starter
protector
• SIMOCODE pro S - the smart system for direct-on-line,
reversing, and wye-delta starters or for controlling a motor
starter protector or soft starter. Its expandability with a multifunction module provides comprehensive input/output project
data volume, precise ground-fault detection via the 3UL23
residual-current transformers and temperature measurement.
• SIMOCODE pro V, as a variable system with all control functions and with the possibility of expanding the inputs, outputs
and functions of the system at will using expansion modules
Siemens Industry, Inc.
Industrial Controls Catalog
✓ Available
-- Not available
1)
Maximum of 5 expansion modules.
2)
When an operator panel with display and/or a decoupling module are
used, more restrictions on the number of expansion modules connectable
per basic unit must be observed, see page 10/13.
3)
The fail-safe digital module can be used instead of one of the two digital
modules.
Per feeder each system always comprises one basic unit and
one separate current measuring module. The two modules are
connected together electrically through the system interface
with a connection cable and can be mounted mechanically
connected as a unit (one behind the other) or separately (side
by side). The motor current to be monitored is decisive only for
the choice of the current measuring module.
An operator panel for mounting in the control cabinet door is
optionally connectable through a second system interface on
the basic unit. Both the current measuring module and the
operator panel are electrically supplied by the basic unit through
the connection cable. More inputs, outputs and functions can be
added to the SIMOCODE pro V and SIMOCODE pro S by
means of optional expansion modules, thus supplementing the
inputs and outputs already existing on the basic unit. With the
DM-F Local and DM-F PROFIsafe fail-safe digital modules it is
also possible to integrate the fail-safe disconnection of motors in
the SIMOCODE pro V motor management system.
All modules are connected by connection cables. The connection cables are available in various lengths. The maximum
distance between the modules (e.g. between the basic unit and
the current measuring module) must not exceed 2.5 m. The total
length of all the connection cables per system interface of the
basic unit may be up to 3 m.
3/63
Siemens IC 10 · 2015
10/5
10
SIMOCODE pro S for efficient entry into motor management and
SIMOCODE pro V for maximum functionality
SIMOCODE 3UF Motor Management and Control Devices
© Siemens AG 2015
SIMOCODE pro 3UF7
motor management and control devices
SIMOCODE 3UF Motor Management and Control
Devices
• Revised
•
SIMOCODE
pro
3UF7
10/18/15
General data
Article No. scheme
Digit of the Article No.
SIMOCODE pro motor management system
1st - 4th
5th 6th 7th
@@@@
@
@
@
@
@
8th 9th 10th 11th 12th
–
1
@
@
0
13th
–
0
–
0
3UF7
@
Type of unit/module
Functional version of the unit/module
@
Connection type of the current transformer
@
Voltage version
@
Color
Example
@
3UF7
0
1
0
–
1
A
B
0
0
Note:
The Article No. scheme is presented here merely for information
purposes and for better understanding of the logic behind the
article numbers.
For your orders, please use the article numbers quoted in the
catalog in the Selection and ordering data.
■ Benefits
Multifunctional, electronic full motor protection
for rated motor currents up to 820 A
SIMOCODE pro offers comprehensive protection of the motor
feeder by means of a combination of different, multi-step and
delayable protection and monitoring functions:
• Inverse-time delayed electronic overload protection
(CLASS 5 to 40)
• Thermistor motor protection
• Phase failure/unbalance protection
• Stall protection
• Monitoring of adjustable limit values for the motor current
• Voltage and power monitoring
• Monitoring of the power factor (motor idling/load shedding)
• Ground-fault monitoring
• Temperature monitoring, e.g. over PT100/PT1000
• Monitoring of operating hours, downtime and number
of starts etc.
Recording of measuring curves
SIMOCODE pro can record measuring curves and therefore is
able, for example, to present the progression of motor current
during motor start up.
Flexible motor control implemented with integrated control
functions (instead of comprehensive hardware interlocks)
Many predefined motor control functions have already been
integrated into SIMOCODE pro, including all necessary logic
operations and interlocks:
• Overload relays
• Direct-on-line and reversing starters
• Wye/delta starters (also with direction reversal)
• Two speeds, motors with separate windings
(pole-changing starter); also with direction reversal
• Two speeds, motors with separate Dahlander windings
(also with direction reversal)
• Positioner actuation
• Solenoid valve actuation
• Actuation of a motor starter protector
• Soft starter actuation (also with direction reversal)
10
General customer benefits
• Integrating the whole motor feeder into the process control by
means of PROFIBUS DP, PROFINET or OPC UA significantly
reduces the wiring outlay between the motor feeder and PLC
• Decentralization of the automated processes by means of
configurable control and monitoring functions in the feeder
saves resources in the automation system and ensures full
functionality and protection of the feeder even if the I&C or bus
system fails
• The acquisition and monitoring of operating, service and
diagnostics data in the feeder and process control system
increases plant availability as well as maintenance and
service-friendliness
• The high degree of modularity allows users to perfectly implement their plant-specific requirements for each motor feeder
• The SIMOCODE pro system offers functionally graded and
space-saving solutions for each customer application
• The replacement of the control circuit hardware with integrated control functions decreases the number of hardware
components and wiring required and in this way limits stock
keeping costs and potential wiring errors
• The use of electronic full motor protection permits better
utilization of the motors and ensures long-term stability of the
tripping characteristic and reliable tripping even after years of
service
These control functions are predefined in SIMOCODE pro and
can be freely assigned to the inputs and outputs of the device
(including PROFIBUS/PROFINET).
These predefined control functions can also be flexibly adapted
to each customized configuration of a motor feeder by means of
freely configurable logic modules (truth tables, counters, timers,
edge evaluation, etc.) and with the help of standard functions
(power failure monitoring, emergency start, external faults, etc.),
without additional auxiliary relays being necessary in the control
circuit.
SIMOCODE pro makes a lot of additional hardware and wiring in
the control circuit unnecessary which results in a high level of
standardization of the motor feeder in terms of its design and
circuit diagrams.
3/64
Siemens Industry, Inc.
Industrial Controls Catalog
Siemens IC 10 · 2015
10/7
© Siemens AG 2015
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE
3UF
• Revised
• Motor Management and Control Devices
SIMOCODE pro 3UF7
10/18/15
General data
Detailed operational, service and diagnostics data
Communications
SIMOCODE pro makes different operating, service and diagnostics data available and helps to detect potential faults in time and
to prevent them by means of preventative measures. In the event
of a malfunction, a fault can be diagnosed, localized and rectified very quickly – there are no or very short downtimes.
SIMOCODE pro has either an integrated PROFIBUS DP interface (SUB-D or terminal connection) or a PROFINET interface
(2 x RJ45).
Operating data
• Motor switching state derived from the current flow in the
main circuit
• All phase currents
• All phase voltages and phase-to-phase voltages
• Active power, apparent power and power factor
• Phase unbalance and phase sequence
• Ground-fault current
• Time to trip
• Motor temperature
• Remaining cooling time etc.
Service data
• Motor operating hours
• Motor stop times
• Number of motor starts
• Number of overload trips
• Interval for compulsory testing of the enabling circuits
• Energy consumed
• Internal comments stored in the device etc.
Diagnostics data
• Numerous detailed early warning and fault messages
• Internal device fault logging with time stamp
• Time stamping of freely selectable status, alarm or fault
messages etc.
Easy operation and diagnostics
Operator panel
10
SIMOCODE pro 3UF7
motor management and control devices
The operator panel is used to control the motor feeder and can
replace all conventional pushbuttons and indicator lights to save
space. It makes SIMOCODE pro or the feeder directly operable
in the control cabinet. It features all the status LEDs available on
the basic unit and externalizes the system interface for simple
parameterization or diagnosis on a PC/PG.
Operator panel with display
As an alternative to the 3UF720 standard operator panel for
SIMOCODE pro V, there is also an operator panel with display:
the 3UF721 is thus able in addition to indicate current measured
values, operational and diagnostics data or status information of
the motor feeder at the control cabinet. The pushbuttons of the
operator panel can be used to control the motor. Also, when
SIMOCODE pro V PROFINET is used it is possible to set
parameters such as rated motor current, limit values, etc.
directly via the operator panel with display.
Fail-safe disconnection through PROFIBUS or PROFINET with
the PROFIsafe profile is also possible in conjunction with a failsafe controller (F-CPU) and the DM-F PROFIsafe fail-safe digital
module.
SIMOCODE pro for PROFIBUS
SIMOCODE pro for PROFIBUS supports for example:
• Cyclic services (DPV0) and acyclic services (DPV1)
• Extensive diagnostics and hardware interrupts
• Time stamp with high timing precision (SIMATIC S7) for
SIMOCODE pro V
• DPV1 communication after the Y-Link
SIMOCODE pro for PROFINET
SIMOCODE pro for PROFINET supports for example:
• Line and ring bus topology thanks to an integrated switch
• Media redundancy via MRP protocol
• Operating, service and diagnostics data via standard
web browser
• OPC UA server for open communication with visualization and
control system
• NTP-synchronized time
• Interval function and measured values for power management
via PROFIenergy
• Module exchange without PC memory module through
proximity detection
• Extensive diagnostics and maintenance alarms
System redundancy with SIMOCODE pro for PROFINET
The device supports the system redundancy mechanisms of
PROFINET IO and therefore can be operated directly on faulttolerant systems such as SIMATIC S7-400 H. As such,
SIMOCODE pro can provide decisive added value also for the
field level of plants in which plant availability and control system
redundancy are priorities.
Notes on safety
For connection of an internal system to an external system,
suitable protective measures must be taken to ensure safe
operation of the plant (including IT security, e.g. network
segmentation).
More information, see www.siemens.com/industrialsecurity.
For SIMOCODE pro motor management and control devices
with communication function, see page 10/14 onwards.
Accessories, see page 10/19 onwards.
More information, see Chapter 14 "Parameterization,
Configuration and Visualization with SIRIUS" or Industry Mall.
Autonomous operation
An essential feature of SIMOCODE pro is the autonomous execution of all protection and control functions, even when communication to the I&C system is interrupted. This means that even
in the event of bus system or automation system failure, full functionality of the feeder is ensured or a specific behavior can be
parametrized in case of such a fault, e.g. targeted shutdown of
the feeder or execution of particular parametrized control mechanisms (such as reversal of the direction of rotation).
Siemens Industry, Inc.
Industrial Controls Catalog
10/8
3/65
Siemens IC 10 · 2015
© Siemens AG 2015
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE 3UF Motor Management and Control Devices
• Revised •
10/18/15
SIMOCODEpro
pro3UF7
3UF7
SIMOCODE
motor management and control devices
General data
Basic
SIMOCODE pro S
Current
measuring module
Optional expansions
Basic unit
Operator
panel
Multifunction module
SIMOCODE pro V
Current/voltage
measuring module
Basic unit
Functions
PROFIBUS
Operator
panel
Earth-fault
module
Temperature
module
Digital modules
Standard
Fail-safe
Analog
module
PROFIsafe
PROFIBUS
PROFIsafe
Functions
PROFINET
10
IC01_00273
SIMOCODE pro V and SIMOCODE pro S: System structure
3/66
10/6
Siemens IC 10 · 2015
Siemens Industry, Inc.
Industrial Controls Catalog
© Siemens AG 2015
SIMOCODE 3UF Motor Management and Control Devices
• Revised •
10/18/15
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODEpro
pro3UF7
3UF7
SIMOCODE
motor management and control devices
General data
IC0
1_ 0
0 24
4
Advantages through energy efficiency
Overview of the energy management process
We offer you a unique portfolio for industrial energy management, using an energy management system that helps to
optimally define your energy needs. We split up our industrial
energy management into three phases – identify, evaluate,
and realize – and we support you with the appropriate hardware
and software solutions in every process phase.
The innovative SIRIUS industrial controls products can also
make a major contribution to the energy efficiency of a plant
(www.siemens.com/sirius/energysaving).
The SIMOCODE pro 3UF7 motor management system makes
the following contribution to the energy efficiency of the plant as
a whole:
• Energy consumption:
Clear display of the energy consumption of a motor feeder or
process element by means of the acquisition and transmission
of all operating and consumption date, such as current,
voltage, active and reactive power, energy consumption,
motor temperature etc.
• Energy management:
Evaluation of energy measured values (e.g. limit value monitoring) with exporting of local or central actions (= forwarding
to higher-level)
• PROFIenergy:
SIMOCODE pro V PROFINET supports the PROFIenergy
functions. Reduced energy consumption thanks to automatic
disconnection in the intervals and forwarding of the measured
values for higher-level energy management systems.
■ Application
SIMOCODE pro is modular and space-saving and suited especially for operation in motor control centers (MCCs) in the
process industry and for power plant technology.
Applications
Protection and control of motors in hazardous areas for types of
protection EEx e/d according to ATEX guideline 94/9/EC
• With heavy starting (paper, cement, metal and water
industries)
• In high-availability plants (chemical, oil, raw material processing industries, power plants)
Safety technology for SIMOCODE pro
The safe disconnection of motors in the process industry
is becoming increasingly important as the result of new and
revised standards and requirements in the safety technology
field.
With the DM-F Local and DM-F PROFIsafe fail-safe expansion
modules it is easy to integrate functions for fail-safe disconnection into the SIMOCODE pro V motor management system while
retaining service-proven concepts. The strict separation of
safety functions and operational functions proves particularly
advantageous for planning, configuring and construction.
Seamless integration in the motor management system leads
to greater transparency for diagnostics and during operation of
the system.
Suitable components for this purpose are the DM-F Local and
DM-F PROFIsafe fail-safe expansion modules, depending on
the requirements:
• The DM-F Local fail-safe digital module for when direct
assignment between a fail-safe hardware shutdown signal
and a motor feeder is required, or
• The DM-F PROFIsafe fail-safe digital module for when
a fail-safe controller (F-CPU) creates the signal for the
disconnection and transmits it in a fail-safe manner through
PROFIBUS/PROFIsafe or PROFINET/PROFIsafe to the motor
management system
3/67
Siemens Industry, Inc.
Industrial Controls Catalog
Siemens IC 10 · 2015
10/9
10
SIMOCODE pro is often used for automated processes where
plant downtimes are very expensive (e.g. steel or cement industry) and where it is important to prevent plant downtimes through
detailed operating, service and diagnostics data or to localize
the fault very quickly in the event of a fault.
© Siemens AG 2015
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
SIMOCODE 3UF Motor Management and Control
Devices
• Revised
•
SIMOCODE pro 3UF7
10/18/15
General data
■ More information
If you want to use an operator panel with display and/or a decoupling module in the SIMOCODE pro V system with PROFIBUS,
then the following configuration instructions concerning the type
and number of connectable expansion modules must be
observed.
The following tables show the maximum possible configuration
of the expansion modules for the various combinations.
The DM-F Local and DM-F PROFIsafe fail-safe expansion
modules behave in this connection like digital modules for
standard applications.
Use of an operator panel with display
Digital
module 1
Digital
module 2
Analog
module
Temperature Ground-fault
module
module
Only operator panel with display for SIMOCODE pro V
(24 V DC or 110 ... 240 V AC/DC)
Max. 4 expansion modules can be used
Operator panel with display and current/voltage measurement
with SIMOCODE pro V (110 ... 240 V AC/DC)
Max. 3 expansion modules can be used or:
--
--
✓
✓
--
✓ Available
-- Not available
Use of a decoupling module
(voltage measurement in insulated networks)
Digital
module 1
Digital
module 2
Analog
module
Temperature Ground-fault
module
module
SIMOCODE pro V (24 V DC)
✓1)
✓1)
✓
✓
✓
SIMOCODE pro V (110 ... 240 V AC/DC)
All circuits in SIMOCODE pro are safely isolated from each other
in accordance with IEC 60947-1. That is, they are designed with
double creepages and clearances. In the event of a fault, therefore, no parasitic voltages can be formed in neighboring circuits.
The instructions of Test log No. 2668 must be complied with.
Types of protection EEx e and EEx d
The overload protection and the thermistor motor protection of
the SIMOCODE pro system comply with the requirements for
overload protection of explosion-proof motors to the type of
protection:
• EEx d "flameproof enclosure" e.g. according to IEC 60079-1
• EEx e "increased safety" e.g. according to IEC 60079-7
When using SIMOCODE pro devices with a 24 V DC control voltage, electrical separation must be ensured using a battery or
a safety transformer according to IEC 61558-2-6.
EC type test certificate: BVS 06 ATEX F 001
Test log: BVS PP 05.2029 EG.
Selection data for type-tested assemblies/load feeders
For configuration tables according to type of coordination "1" or "2", see
• Manual "Configuring SIRIUS",
Article No.: 3ZX1012-0RA21-0AC0,
http://support.automation.siemens.com/WW/view/en/40625241
• Manual "Configuring SIRIUS Innovations",
Article No.: 3ZX1012-0RA21-1AC0,
http://support.automation.siemens.com/WW/view/en/39714188
• SIMOCODE pro PROFIBUS System Manual,
Article No.: 3UF7970-0AA00-0,
http://support.automation.siemens.com/WW/view/en/20017780
• SIMOCODE pro PROFINET System Manual,
Article No.: 3ZX1012-0UF70-1AC1,
http://support.automation.siemens.com/WW/view/en/61896631
✓
✓
--
✓
✓
✓1)
✓1)
System manual
✓
✓
--
✓
--
✓
✓
--
✓
--
✓
--
✓
The SIMOCODE pro system manual describes the motor management system and its functions in detail. It provides information on configuration, start up, servicing and maintenance.
A typical example of a reversing starter application is used to
teach the user quickly and practically how to use the system.
In addition to help on how to identify and rectify faults in the
event of a malfunction, the manual also contains special information for servicing and maintenance. For selection of equipment and for configuration, it is recommended to consult the
system manual.
✓ Available
-- Not available
1)
Protective separation
No bistable relay outputs and no more than 5 of 7 relay outputs active
simultaneously (> 3 s).
Use of a decoupling module
(voltage measurement in insulated networks)
in combination with an operator panel with display
Digital
module 1
Digital
module 2
Analog
module
Temperature Ground-fault
module
module
SIMOCODE pro V (24 V DC)
✓
--
✓
✓
✓
✓
✓
--
✓
✓
10
Configuration instructions when using an operator panel
with display and/or a decoupling module with
SIMOCODE pro V with PROFIBUS
A detailed description of the DM-F Local and DM-F PROFIsafe
fail-safe expansion modules is provided in the system manual
"SIMOCODE pro Safety Fail-Safe Digital Modules", which can be
downloaded from the Internet.
Internet
More information, see www.siemens.com/simocode.
SIMOCODE pro V (110 ... 240 V AC/DC)
✓1)
--
✓
✓
✓
✓
✓
--
--
--
✓2)
✓2)
✓3)
--
--
✓
--
--
✓
✓
✓ Available
-- Not available
1)
No bistable relay outputs and no more than 3 of 5 relay outputs active
simultaneously (> 3 s).
2)
No bistable relay outputs and no more than 5 of 7 relay outputs active
simultaneously (> 3 s).
3)
Analog module output is not used.
3/68
Siemens Industry, Inc.
Controls Catalog
Siemens IC 10 · 2015 Industrial
10/13
SIMOCODE
Management
and Control
SIMOCODE
3UF 3UF
MotorMotor
Management
and Control
DevicesDevices
SIMOCODE pro 3UF7
SIMOCODE pro 3UF7
motor management and control devices
Basic units
Selection and ordering data
Version
Current setting Width
DT
Screw terminals
Order No.
SIMOCODE pro
A
mm
Price
per PU
PU
(UNIT,
SET, M)
PS*
Weight
per PU
approx.
SIMOCODE pro C, basic unit 1
PROFIBUS DP interface, 12 Mbit/s, RS 485
4 I/3 O freely assignable,
input for thermistor connection,
monostable relay outputs,
rated control supply voltage Us:
• 24 V DC
}
• 110 ... 240 V AC/DC
}
3UF7 000-1AB00-0
1
1 unit
0.350
3UF7 000-1AU00-0
1
1 unit
0.350
3UF7 010-1AB00-0
3UF7 000-1A.00-0
SIMOCODE pro V, basic unit 2
PROFIBUS DP interface, 12 Mbit/s, RS 485
4 I/3 O freely assignable,
input for thermistor connection,
monostable relay outputs,
can be expanded by expansion modules,
rated control supply voltage Us:
• 24 V DC
}
• 110 ... 240 V AC/DC
}
1
1 unit
0.350
3UF7 010-1AU00-0
1
1 unit
0.350
3UF7 011-1AB00-0
3UF7 010-1A.00-0
SIMOCODE pro V PROFINET, basic unit 31)
ETHERNET/PROFINET IO,
OPC UA- server and web server, 100 Mbit/s,
2 x connection to bus through RJ45,
4 I/3 O freely assignable,
input for thermistor connection,
monostable relay outputs,
can be expanded by expansion modules,
rated control supply voltage Us:
3UF7 011-1A.00-0
• 24 V DC
}
• 110 ... 240 V AC/DC
}
Current measuring modules
10
• Straight-through
transformers
• Busbar connections
0.3 ... 3
2.4 ... 25
45
45
10 ... 100
20 ... 200
55
120
20 ... 200
63 ... 630
120
145
1
1 unit
0.350
3UF7 011-1AU00-0
1
1 unit
0.350
3UF7 100-1AA00-0
3UF7 101-1AA00-0
1
1
1 unit
1 unit
0.100
0.150
}
3UF7 102-1AA00-0
3UF7 103-1AA00-0
1
1
1 unit
1 unit
0.350
0.600
}
3UF7 103-1BA00-0
3UF7 104-1BA00-0
1
1
1 unit
1 unit
1.000
1.750
3UF7 110-1AA00-0
3UF7 111-1AA00-0
1
1
1 unit
1 unit
0.150
0.200
}
3UF7 112-1AA00-0
3UF7 113-1AA00-0
1
1
1 unit
1 unit
0.400
0.700
}
3UF7 113-1BA00-0
3UF7 114-1BA00-0
1
1
1 unit
1 unit
1.000
1.750
3UF7 150-1AA00-0
1
1 unit
0.150
}
}
}
3UF7 100-1AA00-0
Current/voltage measuring modules
For SIMOCODE pro V
Voltage measuring up to 6902)
if required in connection with a decoupling module
• Straight-through
transformers
3UF7 110-1AA00-0
• Busbar connections
0.3 ... 3
2.4 ... 25
45
45
10 ... 100
20 ... 200
55
120
20 ... 200
63 ... 630
120
145
}
}
}
Decoupling modules
For connecting upstream from a current/voltage measuring A
module on the system interface when using voltage
detection in insulated, high-resistance or asymmetrically
grounded systems and in single-phase systems
3UF7 150-1AA00-0
1)
When using an operator panel with display, the product version must be
E07 or higher (from 08/2012).
Siemens Industry, Inc.
Industrial Controls
Catalog Siemens IC 10 N · 12/2012
10/14
2) Voltage measurement on ungrounded or high resistance grounded systems (HRG) require a decoupling module (3UF7 150-1AA00-0).
Product Category: ICE
3/69
* You can order this quantity or a multiple thereof.
Illustrations similar
IC10N_10_03_Ccorp.fm Page 15 Friday, September 20, 2013 12:56 PM
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
SIMOCODE pro 3UF7
Basic units
Version
DT
Screw terminals
Order No.
SIMOCODE pro (continued)
Operator panels
Installation in control cabinet door or front plate,
for plugging into basic unit,
10 LEDs for status indication and
user-assignable buttons for controlling the motor
Price
per PU
PU
(UNIT,
SET, M)
PS*
Weight
per PU
approx.
}
3UF7 200-1AA00-0
1
1 unit
0.100
}
3UF7 210-1AA00-0
1
1 unit
0.150
3UF7 200-1AA00-0
Operator panel with display
for SIMOCODE pro V
10
3UF7 210-1AA00-0
Installation in control cabinet door or front plate,
for plugging into basic unit 2 and basic unit 3,
7 LEDs for status indication and
user-assignable buttons for controlling the motor,
multilingual display, e.g. for indication of measured
values, status information or fault messages
3/70
Product Category: ICE
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE
Management
and Control
SIMOCODE
3UF 3UF
MotorMotor
Management
and Control
DevicesDevices
SIMOCODE pro 3UF7
SIMOCODE pro 3UF7
motor management and control devices
Expansion modules
Selection and ordering data
Version
DT
Screw terminals
PU
(UNIT,
SET, M)
PS*
Weight
per PU
approx.
1
1 unit
0.150
1
1 unit
0.150
1
1 unit
0.150
3UF7 310-1AU00-0
1
1 unit
0.150
}
3UF7 400-1AA00-0
1
1 unit
0.150
Instead of ground-fault monitoring using the current mea- }
suring modules or current/voltage measuring modules, it
may be necessary, especially in high-impedance grounded
networks, to implement ground-fault monitoring for smaller
ground fault currents using a summation current transformer.
1 input for connecting a 3UL22 summation current transformer, up to 1 ground-fault module can be connected
3UF7 500-1AA00-0
1
1 unit
0.150
3UF7 700-1AA00-0
1
1 unit
0.150
Order No.
Price
per PU
Expansion modules for SIMOCODE pro V
With SIMOCODE pro V, it is possible to expand the type
and number of inputs and outputs in steps. Each expansion
module has two system interfaces on the front. Through the
one system interface the expansion module is connected to
the system interface of the SIMOCODE pro V using a connection cable; through the second system interface, further
expansion modules or the operator panel can be connected.
The power supply for the expansion modules is provided
by the connection cable through basic unit 2 or basic unit
3.
Note:
.
Please order connection cable separately, see page 3/73.
Digital modules
Up to two digital modules can be used to add additional
binary inputs and relay outputs to the basic unit. The input
circuits of the digital modules are supplied from an external
power supply.
4 binary inputs and 2 relay outputs,
Up to 2 digital modules can be connected
3UF7 300-1AU00-0
Relay outputs
Input voltage
Monostable
24 V DC
}
110 ... 240 V AC/DC
}
24 V DC
}
110 ... 240 V AC/DC
}
Bistable
Analog modules
10
Basic unit can be optionally expanded with analog inputs
and outputs (0/4 ... 20 mA) by means of the analog
module.
2 inputs (passive) for input and 1 output for output of
0/4 ... 20 mA signals, max. 1 analog module can be
connected per basic unit 2 and max. 2 analog modules
per basic unit 3
3UF7 300-1AB00-0
3UF7 300-1AU00-0
3UF7 310-1AB00-0
3UF7 400-1AA00-0
Ground-fault modules
3UF7 500-1AA00-0
Temperature modules
Independently of the thermistor motor protection of the
basic units, up to 3 analog temperature sensors can be
evaluated using a temperature module.
Sensor types: PT100/PT1000, KTY83/KTY84 or NTC
3 inputs for connecting up to 3 analog temperature sensors, up to 1 temperature module can be connected per
basic unit 2 and max. 2 temperature modules per basic
unit 3
3UF7 700-1AA00-0
Siemens Industry, Inc.
Industrial Controls Catalog
10/16
Product Category: ICE
Siemens IC 10 N · 12/2012
3/71
* You can order this quantity or a multiple thereof.
Illustrations similar
SIMOCODE
3UF Motor
and Control
Devices
SIMOCODE
3UF Management
Motor Management
and Control
Devices
SIMOCODE pro 3UF7
SIMOCODE pro 3UF7
motor management and control devices
Fail-safe expansion modules
Selection and ordering data
Version
DT
Screw terminals
Order No.
Price
per PU
PU
(UNIT,
SET, M)
PS*
Weight
per PU
approx.
Fail-safe expansion modules for SIMOCODE pro V
Thanks to the fail-safe expansion modules, SIMOCODE pro
V can be expanded with the function of a safety relay for
the fail-safe disconnection of motors. A maximum of 1 failsafe digital module can be connected; it can be used
instead of a digital module.
The fail-safe expansion modules are equipped likewise with
two system interfaces at the front for making the connection
to other system components. Unlike other expansion modules, power is supplied to the modules through a separate
terminal connection.
Note:
Please order connection cable separately, see page 3/73.
DM-F Local fail-safe digital modules 1)
For fail-safe disconnection using a hardware signal
2 relay enabling circuits, joint switching;
2 relay outputs, common potential disconnected fail-safe;
inputs for sensor circuit, start signal, cascading and feedback circuit, safety function adjustable using DIP switches
Rated control supply voltage Us:
• 24 V DC
• 110 ... 240 V AC/DC
3UF7 320-1AB00-0
1
1 unit
0.150
3UF7 320-1AU00-0
1
1 unit
0.150
3UF7 330-1AB00-0
1
1 unit
0.150
1
1 unit
0.150
3UF7 320-1AB00-0
DM-F PROFIsafe fail-safe digital modules1)
For fail-safe disconnection using PROFIBUS/PROFIsafe or
PROFINET/PROFIsafe
2 relay enabling circuits, joint switching;
2 relay outputs, common potential disconnected fail-safe;
1 input for feedback circuit; 3 binary standard inputs
Rated control supply voltage Us:
• 24 V DC
• 110 ... 240 V AC/DC
3UF7 330-1AU00-0
3UF7 330-1AB00-0
Only possible with basic unit 2, product version E07 and higher
(from 05/2011) or basic unit 3
10
1)
3/72
* You can order this quantity or a multiple thereof.
Illustrations similar
Siemens IC 10 N · 12/2012
Siemens Industry, Inc.
Industrial Controls Catalog
10/17
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Accessories
Version
DT
Order No.
List
Price $
per PU
PU
PS*
(UNIT,
SET,
M)
Weight
per PU
approx.
kg
Connection cables (essential accessory)
Connection cables
In different lengths for connecting basic unit, current measuring module, current/voltage measuring
module, operator panel or expansion modules or
decoupling module:
3UF7 932-0AA00-0
Length 0.025 m (flat)
Length 0.1 m (flat)
Length 0.3 m (flat)
Length 0.5 m (flat)
}
}
}
}
3UF7 930-0AA00-0
3UF7 931-0AA00-0
3UF7 935-0AA00-0
3UF7 932-0AA00-0
1
1
1
1
1 unit
1 unit
1 unit
1 unit
0.010
0.010
0.020
0.020
• Length 0.5 m (round)
• Length 1.0 m (round)
• Length 2.5 m (round)
}
}
3UF7 932-0BA00-0
3UF7 937-0BA00-0
3UF7 933-0BA00-0
1
1
1
1 unit
1 unit
1 unit
0.050
0.100
0.150
For PC/PG communication with SIMOCODE pro
through the system interface, for connecting to the
serial interface of the PC/PG
}
3UF7 940-0AA00-0
1
1 unit
0.150
USB PC cables
For connecting to the USB interface of a PC/PG,
for communication with SIMOCODE pro through the
system interface
}
3UF7 941-0AA00-0
1
1 unit
0.150
3UF7 946-0AA00-0
1
1 unit
0.150
}
3UF7 900-0AA00-0
1
1 unit
0.010
Memory modules for SIMOCODE pro V PROFINET }
For saving the complete parameter assignment of a
SIMOCODE pro V PROFINET system
3UF7 901-0AA00-0
1
1 unit
0.010
For system interface
}
3UF7 950-0AA00-0
1
5 units
0.100
For assigning the PROFIBUS addresses without
using a PC/PG
On SIMOCODE pro through the system interface
}
3UF7 910-0AA00-0
1
1 unit
0.030
3UF7 920-0AA00-0
1
1 unit
0.030
3UF7 922-0AA00-0
1
1 unit
0.150
•
•
•
•
PC cables and adapters
3UF7 940-0AA00-0
USB/serial adapters
To connect an RS 232 PC cable
to the USB port of a PC
Memory modules
Memory modules for SIMOCODE pro C and
SIMOCODE pro V
For saving the complete parameter assignment of a
SIMOCODE pro C or SIMOCODE pro V system
3UF7 900-0AA00-0
Interface covers
3UF7 950-0AA00-0
Addressing plugs
3UF7 910-0AA00-0
Door adapters
For external connection of the system interface
Outside, for example, a control cabinet
3UF7 920-0AA00-0
Adapters for operator panel
The adapter enables the smaller 3UF7 20 operator
panel from SIMOCODE pro to be used in a front
panel cutout in which previously, e. g. after a
change of system, a larger 3UF5 2 operator panel
from SIMOCODE-DP had been used; degree of
protection IP54
3UF7 922-0AA00-0
Siemens Industry, Inc.
Industrial Controls Catalog
Product Category: ICE
3/73
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Version
Labeling strips
3UF7 925-0AA02-0
Push-in lugs
3RB19 00-0B
Terminal covers
3RT19 56-4EA1
DT
List
Price $
per PU
PU
PS*
(UNIT,
SET,
M)
Weight
per PU
approx.
kg
3UF7 925-0AA00-0
• For pushbuttons of the 3UF7 20 operator panel
100
400 units
15.000
• For pushbuttons of the 3UF7 21 operator panel with
display
3UF7 925-0AA01-0
100
600 units
15.000
• For LEDs of the 3UF7 20 operator panel
3UF7 925-0AA02-0
100
1200 units
15.000
100
10 units
0.100
Note: Pre-punched labeling strips for user-specific
printing using the free inscription software "SIRIUS
Label Designer" on a laser printer.
Note the software version!
Download from
http://www.siemens.com/simocode.
For screw fixing
e. g. on mounting plate, 2 units required per
device
• Can be used with 3UF7 1.0, 3UF7 1.1 and
3UF7 1.2
}
3RB19 00-0B
• Can be used with 3UF7 0, 3UF7 3, 3UF7 4, 3UF7 5
and 3UF7 7
}
3RP19 03
1
10 units
0.002
• Length 100 mm, can be used for
3UF7 1.3-1BA00-0
}
3RT19 56-4EA1
1
1 unit
0.070
• Length 120 mm, can be used for
3UF7 1.4-1BA00-0
}
3RT19 66-4EA1
1
1 unit
0.130
}
3RT19 56-4EA2
Covers for cable lugs and busbar connections
Covers for box terminals
• Length 25 mm, can be used for 3UF7 1.3-1BA00-0
1
1 unit
0.030
3RT19 66-4EA2
1
1 unit
0.040
}
3RT19 56-4EA3
1
1 unit
0.020
}
3RT19 66-4EA3
1
1 unit
0.060
}
}
3RT19 55-4G
• Length 30 mm, can be used for 3UF7 1.4-1BA00-0
3RT19 56-4EA2
Order No.
Covers for screw terminals
between contactor and current measuring module
or current/voltage measuring module for direct
mounting
• Can be used for 3UF7 1.3-1BA00-0
• Can be used for 3UF7 1.4-1BA00-0
Box terminal blocks
For round and ribbon cables
• Up to 70 mm2, can be used for 3UF7 1.3-1BA00-0
• Up to 120 mm2, can be used for 3UF7 1.3-1BA00-0
• Up to 240 mm2, can be used for 3UF7 1.4-1BA00-0
}
3RT19 56-4G
3RT19 66-4G
1
1 unit
0.230
1
1 unit
0.260
1
1 unit
0.676
3RT19 5.-4G
Bus terminations
Bus termination module with separate supply voltage for
terminating the bus following the last unit on the bus
line. Supply voltage:
• 115/230 V AC
System manuals
• 24 V DC
3UF1 900-1KA00
1
1 unit
0.286
3UF1 900-1KB00
1
1 unit
0.192
3UF7 970-0AA00-0
1
1 unit
0.850
SIMOCODE pro
languages:
• English
3UF7 970-0AA01-0
3/74
Product Category: ICE
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE
3UF3UF
Motor
Management
and
SIMOCODE
Motor
Management
andControl
ControlDevices
Devices
SIMOCODE pro 3UF7
SIMOCODE pro 3UF7
motor management and control
devices
Accessories
Version
DT
Order No.
Price
per PU
PU
(UNIT,
SET, M)
PS*
Weight
per PU
approx.
kg.
SIMOCODE ES 2007 Basic
Floating license for one user
Engineering software, type of delivery: on CD incl. electronic
documentation, 3 languages (German/English/French),
communication through system interface
• License key on USB stick, Class A
}
• License key download, Class A
}
3ZS1 312-4CC10-0YA5
1
1 unit
0.230
3ZS1 312-4CE10-0YB5
1
1 unit
0.230
3ZS1 312-5CC10-0YA5
1
1 unit
0.230
1
1 unit
0.230
3ZS1 312-4CC10-0YA5
SIMOCODE ES 2007 Standard
Floating license for one user
Engineering software, type of delivery: on CD incl. electronic
documentation, 3 languages (German/English/French),
communication through system interface,
integrated graphics editor
• License key on USB stick, Class A
3ZS1 312-5CE10-0YB5
• License key download, Class A
}
Upgrade for SIMOCODE ES 2004 and later
Floating license for one user, engineering software,
type of delivery: on CD incl. electronic documentation,
3 languages (German/English/French), license key on USB
stick, Class A, communication through system interface,
integrated graphics editor
A
3ZS1 312-5CC10-0YE5
1
1 unit
0.230
Powerpack for SIMOCODE ES 2007 Basic
}
3ZS1 312-5CC10-0YD5
1
1 unit
0.230
}
3ZS1 312-5CC10-0YL5
1
1 unit
0.230
• License key on USB stick, Class A
}
1
1 unit
0.230
}
3ZS1 312-6CC10-0YA5
• License key download, Class A
1
1 unit
0.230
Upgrade for SIMOCODE ES 2004 and later
A
3ZS1 312-6CC10-0YE5
1
1 unit
0.230
A
3ZS1 312-6CC10-0YD5
1
1 unit
0.230
}
3ZS1 312-6CC10-0YL5
1
1 unit
0.230
Floating license for one user, engineering software,
license key on USB stick, Class A, 3 languages
(German/English/French), communication through the
system interface, integrated graphics editor
Software Update Service
For 1 year with automatic extension, assuming the current
software version is in use, engineering software,
type of delivery: on CD incl. electronic documentation,
communication through system interface, integrated
graphics editor
10
SIMOCODE ES 2007 Premium
Floating license for one user
Engineering software, type of delivery: on CD incl. electronic
documentation, 3 languages (German/English/French),
communication through PROFIBUS/PROFINET or system
interface, integrated graphics editor, STEP7 Object Manager
3ZS1 312-6CE10-0YB5
Floating license for one user, engineering software,
type of delivery: on CD incl. electronic documentation,
3 languages (German/English/French),
license key on USB stick, Class A,
communication through PROFIBUS/PROFINET or system
interface, integrated graphics editor, STEP7 Object Manager
Powerpack for SIMOCODE ES 2007 Standard
Floating license for one user, engineering software,
license key on USB stick, Class A, 3 languages
(German/English/French), communication through
PROFIBUS/PROFINET or the system interface, integrated
graphics editor, STEP7 Object Manager
Software Update Service
For 1 year with automatic extension, assuming the current
software version is in use, engineering software,
type of delivery: on CD incl. electronic documentation,
communication through PROFIBUS/PROFINET or
system interface, integrated graphics editor,
STEP7 Object Manager
Notes:
Please order PC cable separately, see page 3/73.
Siemens Industry, Inc.
Industrial Controls
Catalog
* You can
order this quantity or a multiple thereof.
Illustrations similar
3/75
Product Category: ICE
Siemens IC 10 N · 12/2012
10/21
SIMOCODE3UF
3UFMotor
Motor
Management
Control
Devices
SIMOCODE
Management
andand
Control
Devices
SIMOCODE pro 3UF7
SIMOCODE pro 3UF7
motor
management and control devices
Accessories
Version
DT
Order No.
Price
per PU
PU
(UNIT,
SET, M)
PS*
Weight
per PU
approx.
kg.
SIMOCODE pro Function Block Library for SIMATIC PCS 7
3UF7 982-0AA00-0
Engineering software V7
For one engineering station (single license)
including runtime software for execution of the
AS modules in an automation system
(single license), German/English/French
Scope of supply:
AS modules and faceplates for integrating
SIMOCODE pro into the PCS 7 process control system,
for PCS 7 version V 7.0/V 7.1
Type of delivery:
Software and documentation on CD,
one license for one engineering station,
one license for one automation system
3UF7 982-0AA10-0
1
1 unit
0.240
Runtime license V7
For execution of the AS modules in an
automation system (single license)
3UF7 982-0AA11-0
1
1 unit
0.001
}
3UF7 982-0AA13-0
1
1 unit
0.240
Engineering software migration V7-V8
}
For upgrading (migrating) an existing engineering software
V7 of the SIMOCODE pro Function Block Library for PCS 7
Conditions of use:
Availability of the engineering software V7 (license) of the
SIMOCODE pro Function Block Library for PCS 7 for the PCS
7 version V 7.0 or V 7.1
The engineering software migration V7-V8 can be installed
directly onto a system with PCS 7 version V 8.0;
installation of the previous version is unnecessary.
3UF7 982-0AA20-0
1
1 unit
0.212
Required for using the AS modules of the engineering
software V7 or the engineering software migration V7-V8 on
an additional automation system within a plant
Type of delivery:
one license for one automation system,
without software and documentation
10
Upgrade for PCS 7 function block library
SIMOCODE pro, V 6.0 or V 6.1
to version SIMOCODE pro V 7.0/V 7.1
For one engineering station (single license)
including runtime software for execution of the
AS modules in an automation system
(single license), German/English/French
Scope of supply:
AS modules and faceplates for integrating
SIMOCODE pro into the PCS 7 process control system,
for PCS 7 version V 7.0 or V 7.1
Type of delivery:
Software and documentation on CD,
one license for one engineering station,
one license for one automation system
For one engineering station (single license)
including runtime software for execution of the
AS modules in an automation system
(single license), German/English/French
Scope of delivery:
AS modules and faceplates for integrating SIMOCODE pro
into the PCS 7 process control system,
for PCS 7 version V 8.0
Type of delivery:
software and documentation on CD,
license for upgrading an existing license
for one engineering station and a plant's assigned
runtime licenses
Note:
Programming and Operating Manual SIMOCODE pro Library for
PCS 7 see
http://support.automation.siemens.com/WW/view/en/49963525.
3/76
10/22
Siemens IC 10 N · 12/2012
Siemens Industry, Inc.
Catalog
Industrial
Controls
* You can order this quantity or a multiple
thereof.
Illustrations similar
SIMOCODE
3UF3UF
Motor
Management
and
SIMOCODE
Motor
Management
andControl
ControlDevices
Devices
SIMOCODE pro 3UF7
• Revised •
10/18/15
SIMOCODE pro 3UF7
motor management and control devices
General data
Current measuring modules or current/voltage measuring modules
Type
3UF7 1.0
3UF7 1.1
3UF7 1.2
3UF7 1.3
3UF7 1.4
2.4 ... 25
10 ... 100
20 ... 200
63 ... 630
Current setting Ie
A
0.3 ... 3
V
690; 3UF7 103 and 3UF7 104: 1 000 (at pollution degree 3)
Rated operational voltage Ue
V
690
kV
6; 3UF7 103 and 3UF7 104: 8
Rated frequency
Hz
50/60
Rated insulation voltage Ui
Rated impulse withstand voltage Uimp
Type of current
Three-phase current
Short-circuit
Accuracy of current measurement (in the range of
1 x minimum current setting Iu to 8 x maximum current setting Io)
Typical voltage measuring range
• Phase-to-phase voltage/line-to-line voltage (e.g. UL1 L2)
• Phase voltage (e.g. UL1 N)
Accuracy
• Voltage measurement
(phase voltage UL in the range 230 ... 400 V)
• Power factor measurement
(in the rated load range power factor = 0.4 ... 0.8)
• Apparent power measurement (in the rated load range)
Additional short-circuit protection is required in the main circuit
%
±3
V
V
110 ... 690
65 ... 400
%
±3 (typical)
%
±5 (typical)
%
±5 (typical)
Notes on voltage measurement
• In insulated, high-resistance or asymmetrically grounded forms
of power supply system and for single-phase systems
• Supply lines for voltage measurement
In these networks the current/voltage measuring module can be used only
with an upstream decoupling module on the system interface.
In the supply lines from the main circuit for voltage measurement of
SIMOCODE pro it may be necessary to provide additional line protection!
Digital modules
Type
Control circuits
Rated insulation voltage Ui
Rated impulse withstand voltage Uimp
Relay outputs
• Number
• Specified short-circuit protection for auxiliary contacts
(relay outputs)
- Fuse links
- Miniature circuit breakers
• Rated uninterrupted current
• Rated switching capacity
- AC-15
- DC-13
3UF7300, 3UF7310, 3UF7600
V
300 (at pollution degree 3)
kV
4
2 monostable or bistable relay outputs (depending on the version)
A
6 A gG operational class; 10 A quick-response (IEC 60947-5-1)
1.6 A, C characteristic (IEC 60947-5-1); 6 A, C characteristic (Ik < 500 A)
6
6 A/24 V AC
2 A/24 V DC
Inputs (binary)
6 A/120 V AC
0.55 A/60 V DC
3 A/230 V AC
0.25 A/125 V DC
4 inputs, electrically isolated, supplied externally with 24 V DC or
110 ... 240 V AC/DC depending on the version, connected to a common
potential
Ground-fault modules or multifunction modules
Type
3UF7510, 3UF7600
Connectable residual-current transformers
3UL23
Control circuit
Type of current for monitoring
Type A (AC and pulsating DC residual currents)
Adjustable response value
30 mA ... 40 A
Relative measurement error
7.5 %
Type
3UF7600, 3UF7700
Temperature modules
Sensor circuit
Typical sensor circuit
• PT100
• PT1000/KTY83/KTY84/NTC
mA
mA
1 (typical)
0.2 (typical)
Open-circuit/short-circuit detection
• Sensor type
- Open circuit
- Short-circuit
- Measuring range
Measuring accuracy at 20 °C ambient temperature (T20)
%
0.05 per K deviation from T20
ms
500
Deviation due to ambient temperature (in % of measuring range)
Conversion time
Connection type
PT100/PT1000 KTY83-110
KTY84
NTC
--
°C
-50 ... +500
-40 ... +300
80 ... 160
K
<± 2
-50 ... +175
Two- or three-wire connection
Detection possible
-- Detection not possible
3/77
Siemens Industry, Inc.
Industrial Controls Catalog
Siemens IC 10 N · 12/2012
10/11
10
Main circuit
SIMOCODE
3UF Motor
and Control
Devices
SIMOCODE
3UF Management
Motor Management
and Control
Devices
SIMOCODE pro 3UF7
SIMOCODE pro 3UF7
motor management and control devices
General data
Current measuring modules or current/voltage measuring modules
Type
3UF7 1.0
3UF7 1.1
3UF7 1.2
3UF7 1.3
3UF7 1.4
2.4 ... 25
10 ... 100
20 ... 200
63 ... 630
Current setting Ie
A
0.3 ... 3
V
690; 3UF7 103 and 3UF7 104: 1 000 (at pollution degree 3)
Rated operational voltage Ue
V
690
kV
6; 3UF7 103 and 3UF7 104: 8
Rated frequency
Hz
50/60
Rated insulation voltage Ui
Rated impulse withstand voltage Uimp
Type of current
Three-phase current
Short-circuit
Accuracy of current measurement (in the range of
1 x minimum current setting Iu to 8 x maximum current setting Io)
Typical voltage measuring range
• Phase-to-phase voltage/line-to-line voltage (e.g. UL1 L2)
• Phase voltage (e.g. UL1 N)
Accuracy
• Voltage measurement
(phase voltage UL in the range 230 ... 400 V)
• Power factor measurement
(in the rated load range power factor = 0.4 ... 0.8)
• Apparent power measurement (in the rated load range)
Additional short-circuit protection is required in the main circuit
%
±3
V
V
110 ... 690
65 ... 400
%
±3 (typical)
%
±5 (typical)
%
±5 (typical)
Notes on voltage measurement
• In insulated, high-resistance or asymmetrically grounded forms
of power supply system and for single-phase systems
• Supply lines for voltage measurement
In these networks the current/voltage measuring module can be used only
with an upstream decoupling module on the system interface.
In the supply lines from the main circuit for voltage measurement of
SIMOCODE pro it may be necessary to provide additional line protection!
Digital modules
Type
Control circuits
Rated insulation voltage Ui
Rated impulse withstand voltage Uimp
Relay outputs
• Number
• Specified short-circuit protection for auxiliary contacts
(relay outputs)
- Fuse links
- Miniature circuit breakers
• Rated uninterrupted current
• Rated switching capacity
- AC-15
- DC-13
3UF7 3
V
300 (at pollution degree 3)
kV
4
2 monostable or bistable relay outputs (depending on the version)
A
6 A/24 V AC
2 A/24 V DC
Inputs (binary)
Ground-fault modules
Connectable 3UL22 summation current transformer
with rated fault currents IN
• IGround fault ≤ 50 % IN
• IGround fault ≥ 100 % IN
Response delay (conversion time)
Temperature modules
A
0.3/0.5/1
No tripping
Tripping
ms
300 ... 500, additionally delayable
3UF7 7
Sensor circuit
mA
mA
1 (typical)
0.2 (typical)
Open-circuit/short-circuit detection
• Sensor type
- Open circuit
- Short-circuit
- Measuring range
Measuring accuracy at 20 °C ambient temperature (T20)
%
0.05 per K deviation from T20
ms
500
Deviation due to ambient temperature (in % of measuring range)
Conversion time
Connection type
3 A/230 V AC
0.25 A/125 V DC
3UF7 5
Type
Typical sensor circuit
• PT100
• PT1000/KTY83/KTY84/NTC
6 A/120 V AC
0.55 A/60 V DC
4 inputs, electrically isolated, supplied externally with 24 V DC or
110 ... 240 V AC/DC depending on the version, connected to a common
potential
Type
Control circuits
6 A gG operational class; 10 A quick-response (IEC 60947-5-1)
1.6 A, C characteristic (IEC 60947-5-1); 6 A, C characteristic (Ik < 500 A)
6
10
Main circuit
PT100/PT1000 KTY83-110
KTY84
NTC
—
°C
-50 ... +500
-40 ... +300
80 ... 160
K
<± 2
-50 ... +175
Two- or three-wire connection
Detection possible
— Detection not possible
3/78
Siemens IC 10 N · 12/2012
Siemens Industry, Inc.
Industrial Controls Catalog
10/11
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
Dimensional drawings
Basic unit 1, SIMOCODE pro C, 3UF7 000
Basic unit 2, SIMOCODE pro V, 3UF7 010
3UF7 100, 3UF7 101 current measuring module
(straight-through transformer)
3UF7 102 current measuring module
(straight-through transformer)
3UF7 103 current measuring module (straight-through transformer)
Siemens Industry, Inc.
Industrial Controls Catalog
3/79
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
3UF7 103 current measuring module (busbar connection)
3UF7 113 current/voltage measuring module (busbar connection)
3UF7 104 current measuring module (busbar connection)
3UF7 114 current/voltage measuring module (busbar connection)
145
48
25
122
147
88
11
9
32
125
67
NSA0_00404
6
149
3/80
Siemens Industry, Inc.
Industrial Controls Catalog
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
3UF7 110, 3UF7 111 current/voltage measuring module
(straight-through transformer)
3UF7 112 current/voltage measuring module
(straight-through transformer)
3UF7 113 current/voltage measuring module (straight-through transformer)
Siemens Industry, Inc.
Industrial Controls Catalog
3/81
SIMOCODE 3UF Motor Management and Control Devices
SIMOCODE pro 3UF7
motor management and control devices
96
36
29
3UF7 920 door adapter
NSA0_00385a
3UF7 200 operator panel
8
29
7
89
3UF7 3 digital module
3UF7 4 analog module
3UF7 5 ground-fault module
3UF7 7 temperature module
3UF7 15 decoupling module
NSA0_00463b
60
55
3UF7 210 operator panel with display
96
29
33
91,5
100
51
63
3UF7 922 adapter for operator panel
37
NSA0_00464
62
38
3/82
Siemens Industry, Inc.
Industrial Controls Catalog