ETAL E-1048-8S2-C3A1-4U3-2A The e-1048-8slimline features integral power electronics and provides wear-free switching function, insensitive against shock, vibration and dust Datasheet

Smart Power Relay E-1048-8S...
Description
The Smart Power Relay E-1048-8S is a remotely controllable electronic
load disconnecting relay with two functions in a single unit:
l electronic relay
l electronic overcurrent protection
A choice of current ratings is available from 1 A through 30 A. An
operating voltage range of DC 9...32 V allows the connection of
DC 12 V and DC 24 V loads.
tus
with sta
output
It has been designed for installation in IP-protected enclosures. The
optimised design allows reduction of space requirements up to 50 %
compared to standard electro-mechanical cubic relays. Power
consumption is cut by factor 5 compared to standard electro-mechanical
relays and allows gas saving and reduction of CO2 emissions.
In order to switch and protect loads remotely, it has until now been
necessary to connect several discreet components together:
- an electro-mechanic relay, control cable and integral
contact to close the load circuit
- an additional protective element (circuit breaker or fuse) for
cable or equipment protection
Now type E-1048-8S combines these two functions in a single
unit, thus minimising the number of connections in the circuit and
thereby reducing the risk of failures.
E-1048-8S SLIMLINE-version
Technical Data (Tamb. = 25 °C, UN = DC 24 V)
Power supply LINE +
Type
Voltage ratings UN
Operating voltage US
DC power supply with small R i
battery and generator etc.
DC 12 V/DC 24 V
DC 9...32 V
Closed-circuit current
< 50 µA
I0 in the OFF condition 1)
Applications
Load circuit LOAD
Type E-1048-8S is suited to all applications with DC 12 V or DC 24 V
circuits, where magnetic valves, motors or lamp loads have to be
switched and protected:
- agricultural and construction machinery,
- road vehicles (utility vehicles, buses, special vehicles)
- rail vehicles
- marine industry (ships, boats, yachts etc.)
The Power Relay is also suitable for industrial use (process control,
machine-building, engineering) as an electronic coupling relay between
PLC and DC 12 V or DC 24 V load.
Features
lThe
E-1048-8Slimline features integral power electronics and
provides wear-free switching function, insensitive against shock,
vibration and dust.
l
Compared to electro-mechanical relays, only a fraction of the
closed-circuit current or switching current is needed. This is
important for battery buffered load circuits which have to remain
controlled even with the generator off line.
l
The extremely low induced current consumption of less than 50 µA is
absolutely necessary for battery buffered applications.
l The load circuit is disconnected in the event of a short circuit.
l For switching and monitoring loads of 25 A plus it is possible to
connect several units in parallel. Uniform power distribution between
units must be ensured by symmetrical design of the supply cables
(length and cross section).
l Load conditions are visually indicated by a bicolour LED (load
activated: yellow LED lighted; load disconnected due to overload
or short circuit: red LED lighted).
l An optional status output for group fault signalling »SF« provides
status indication of the load circuit (overload/short circuit)
Load output
Power MOSFET, high side switching
Current rating range IN1 A...25 A (fixed ratings), without load
reduction up to 85° C (25 A ... 70 °C)
IN = 1 A...10 A: see trip curve 1
IN = 15 A...25 A: see trip curve 2
Types of loadsresistive, inductive, capacitive, lamp
loads, motors (depending on duration
of inrush current)
Typical voltage drop UON at rated current IN (at 25 °C)
IN
1A
2A
3A
5A
7.5 A
Switching point
Trip time 1)
50
55
60
80
90
UON
mV
mV
mV
mV
mV
1)
IN
10
15
20
25
A
A
A
A
1)
UON
110 mV
70 mV
90 mV
120 mV
typically 1.3 x IN
(-40 °C...+85 °C: 1.1...1.5 x IN)
typically 200 ms with switch-on onto
overload and/or load increase on duty;
can be modified in relation to specific
projects.
Max. overload
Temperature disconnection
Parallel connection
of channels
IN = 1 A...10 A: 60 A (at L/R = 3 ms)
IN = 15 A...25 A: 200 A (at L/R = 3 ms)
short-circuit-proof switching output
with overload disconnection after typically
200 ms at Iload > typically 1.3 x rated current
power transistor > 150 °C
for loads of 25 A plus, several units of
identical current ratings may be
connected in parallel. To ensure equal
distribution of current between units,
symmetrical design of the supply feed
is necessary (length and cross section).
Free-wheeling diode
for connected load
integral
IN = 1 A...10 A: max. 40 A
IN = 15 A...25 A: max. 100 A
1) typical
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Smart Power Relay E-1048-8S...
Ordering Information
Technical Data (Tamb. = 25 °C, UN = DC 24 V)
Delay time 1)ton 0.5 ms / toff 1.5 ms
Short circuit, overload
- disconnection of load
in load circuit
- no automatic re-start
- after remedy of the fault unit has to
be reset via control input IN+
Control input IN+
Control voltage IN+
0...5 V = “OFF”, 8.5...32 V = “ON”
Control current IE 1)
1 mA at 12 V / 5 mA at 24 V
Reset in the event of a failure -via external control signal (low - high)
at control input IN+
- via reset of supply voltage
Rising edge of IN+
< 5 ms
Status functions
Group fault signal SFtransistor output minus-switching
(LSS), open collector, short circuit and
overload-proof; max. load DC 32 V /
2 A 0 V level; in the event of overload
and short circuit disconnection
Visual status indication
control current on (AS)
yellow LED lighted
disconnection
overcurrent (SF)
red LED lighted
Type No.
E-1048-8SSmart Power Relay DC 12/24 V, ratings 1 through 25 A,
SLIMLINE design
2 - C3without enclosure, temperature range 40 … 85 °C
(70 °C at 25 A); LED indication: yellow AS (control
signal), red SF (group fault signal)
Status output minus switching
A
without
C
with group fault output (SF)
1 - 4U3 -short circuit and overload indication, 200 ms
switch-off delay at overload; DC 12/24 V
Current ratings
1A
2A
3A
5A
7.5 A
10 A
15 A
20 A
25 A
E-1048-8S 2 - C3 C 1-4U3 - 10Aordering example
Connection diagram SLIMLINE
General data
Reverse polarity protection
Control circuit
yes
Load circuit
no (due to integral free-wheeling diode)
Temperature range
ambient temperature
< Temperature shutdown
Tests
5
LINE (+)
DC 12 V/24 V
AS
yellow
1...20 A: -40...+85 °C
25 A: -40...70 °C without load reduction
power transistor > 150 °C
SF
red
control input
1…10 mA
Humid heat
combined test, 9 cycles with
functional test
test to DIN EN 60068-2-30, Z/AD
Temperature change
min. temperature -40 °C,
max. temperature +90 °C
test to DIN IEC 60068-2-14, Nb
Vibration (random)
in operation, with temperature change
6 g eff. (10 Hz...2,000 Hz)
test to DIN EN 60068-2-64
Vibration was tested with standard
sockets for PCB mounting.
Behaviour at vibrations depends on
design, quality and age (number of
push-in cycles) of the socket particularly
regarding duration of the vibration and
the mounting position
Shock
25 g/11 ms, 10 shocks
test to DIN EN 60068-2-27
Corrosion
test to DIN EN 60068-2-52, severity 3
EMC requirements
EMC directive:
emitted interference EN 61000-6-3
noise immunity EN 61000-6-2
group fault signal
max. 2 A
LOAD (+)
IN+
SF *
GND
* optionally available:
- status output SF (group fault)
Terminals 4 blade terminals 6.3 mm x 0.8 mm
to DIN 46244-A6.3-0.8
contact material CuZn37F37
copper-plated and tin-plated
Dimensionsapprox. 30 x 45 x 9 mm when plugged in
41 x 45 x 9 mm including terminals
Mass
approx. 13 g
This is a metric design and millimeter dimensions take precedence ( mm )
inch
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Smart Power Relay E-1048-8S...
Dimensions SLIMLINE
Typical time/current characteristics (TA = 25 °C)
Trip curve 1
1 A, 2 A, 3 A, 5 A, 7,5 A and 10 A (standard 200 ms)
1000
30
1.18
100
6.8
.268
27.2
1.07
6.8
.268
LINE+
Trip time in ms
40,3
1.57
44.5
1.75
LED red LED yellow
6.3
.249
10
8,6
.315
1
max. overload
0.1
Design: power semiconductor varies depending on the current rating
0
1
2
typ. 1.3 x IN
(typ. 60 A)
I (A)
... times rated current IN
Trip curve 2
15 A, 20 A, 25 and 30 A (standard 200 ms)
E-1048-8S2-C3C1-4U3
1000
44,5
LED red LED yellow
(1)
(4)
6,8
(7)
20,4
(5)
(2)
6,8
6,8
Trip time in ms
30
40,3
100
LINE+
10
6,3
1
5
8,6
max. overload
0.1
0
Design: power semiconductor varies depending on the current rating
Pin selection SLIMLINE
(typ. 250 A))
1
2
typ. 1.3 x IN
...times rated current IN
I (A))
Accessories
Single mounting sockets (up to 16 A max. load)
E-1048-8S. 17-P10-Si
17-P10-Si
LINE + (2)
GND
(5)
SF
(7)
17-P70-Si
(2)
(5)
(7)
[2(k)]
[12]
[24]
2-way mounting socket (up to 16 A max. load)
23-P10-Si
IN+
LOAD
(4)
(1)
(4)
(1)
[11]
[1]
63-P10-Si
pin 7 only available for versions with SF
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All dimensions without tolerances are for reference only. In the interest of improved design,
performance and cost effectiveness the right to make changes in these specifications without
notice is reserved. Product markings may not be exactly as the ordering codes. Errors and
omissions excepted.
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