Power-One LOK4740-2RLD Din-rail mountable ac-dc (dc-dc) converter Datasheet

LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
15, 30, 50 Watt AC-DC (DC-DC) Converters Convert Simply
Features
Universal input range 100 - 240 VAC nominal
Additional DC input 90 - 250 V
Single output 5.1, 12, 24, or 48 VDC
Class I equipment
• RoHS lead-solder-exempt compatible
• Extremely compact design
• Battery charger versions
• Operating ambient temperature range –10 to 50 °C
with convection cooling
• Short-circuit and no-load proof
Safety according to IEC/EN 60950, UL 1950, and UL 508 2
1
2
PRODUCT SERVICE
Production monitored
Type tested
1
2
LOK
LOS/LOR
Description
The Convert Simply front-end converters represent a family of
15, 30, and 50 watt DIN-rail mountable AC-DC converters for
use as rectifiers or battery chargers. Plastic casing, compact
size, and high reliability make the LOS, LOR, LOK4000 Series
an excellent choice for space-critical applications, where a
DIN-Rail mountable AC-DC converter is required. The
universal input range and a built-in input filter allow flexible
operation in a wide variety of electronic equipment and
enables worldwide connection to the mains.
The converters are available as rectifiers with 12 V, 24 V, or 48
Table of Contents
Safety approvals fully comply with worldwide requirements.
Applications
Typical applications are: powering building controls, factory
automation, industrial controls, instrumentation, electromagnetic drives, fans, and other DC loads.
Page
Description ....................................................................... 1
Model Selection ............................................................... 2
Functional Description ..................................................... 3
Electrical Input Data ......................................................... 3
Electrical Output Data ...................................................... 4
Auxiliary Functions ........................................................... 6
SEP 09, 2005 revised to JUL 17, 2006
V single output and as battery chargers for 12 V, 24 V, or 48 V
batteries. The output voltage of LOK converters can be adjusted
via the R input.
Page
Electromagnetic Compatibility (EMC) .............................. 7
Mechanical Data .............................................................. 8
Immunity to Environmental Conditions ............................. 8
Safety and Installation Instructions .................................. 9
Description of Options .................................................... 11
EC Declaration of Conformity LOS/LOR ........................ 12
Page 1 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Model Selection
Table 1: Type survey
Output
Vo nom
[VDC]
5.1
12
12
12
12 - 12.8 3 - 15
24
24
24
24 - 25.7 3 - 30
48
48 - 51.4 3 - 60
Io nom
[A]
5.2
1.25
2.5
4
3.6
0.65
1.25
2
1.8
1
0.9
Operating
input voltage1
85 - 264 VAC
47 - 63 Hz
90 - 250 VDC
Rated power 1
TA = 50 °C
Po tot [W]
26
15
30
48
49
15
30
48
49
48
49
Efficiency 5
ηtyp [%]
70
74
80
82
82
76
82
82
82
82
81
Model
LOK4001-2RLD
LOS4301-2
LOR4301-2
LOK4301-2R
LOK4140-2RLD
LOS4601-2
LOR4601-2
LOK4601-2R
LOK4240-2RLD
LOK4801-2R
LOK4740-2RLD
Options 4
F 2, K
1
Linear derating to 85% of Po nom below Vi = 105 VAC, 110 VDC
LOK types only
3 Setting voltage V
o set for battery chargers with R-input left open-circuit.
4 For minimum order quantities and lead times contact Power-One.
5 Efficiency at V
i rated and Io nom
2
Part Number Description and Product Marking
Series
15 W .................................................... LOS 4
30 W .................................................... LOR 4
50 W .................................................... LOK 4
Output
5.1 V rectifier version ............................... 001
12 V rectifier version ................................ 301
24 V rectifier version ................................ 601
48 V rectifier version ................................ 801
LOK4 3 0 1 -2 R L D F K
12 - 15 V battery charger ......................... 140
24 - 30 V battery charger ......................... 240
48 - 60 V battery charger ......................... 740
other voltages or specs. ..................... 02 - 99
Ambient temperature range TA:
–10 to 50°C ................................................ -2 3
Features and options:
Output voltage control input ........................ R
Rectangular output characteristic ................ L
Output voltage OK signal ............................ D
Built-in second fuse (option) ........................ F
K system connector (option) ........................ K
1
2
3
2
1
1
2
Battery chargers and LOK4001-2RLD
LOK models only
Up to 70 °C with derating
Examples: LOK4140-2RLD: AC-DC converter, battery charger version, providing 12 - 15 V/3.6 A at the output
LOK4601-2R: AC-DC converter, rectifier version, providing 24 V/2 A, 48 W at the output
SEP 09, 2005 revised to JUL 17, 2006
Page 2 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Functional Description
The Convert Simply 15, 30, and 50 watt front-end modules are
flyback converters with a fixed frequency of 100 kHz (LOK) or
130 kHz (LOR, LOS). The battery charger modules and the
LOK4001-2RLD have a rectangular V/I output characteristic.
The rectifier modules have overload protection working in a
hiccup mode.
03095
N
3
opt. F
L
Vo+
5 Vo+
1
2
6 Vo–
7
Vo–
8
R
N
3
opt. F
NTC
switching device
and control circuit
2
4
Line filter and rectifier
1
Line filter and rectifier
L
switching device
and control circuit
03094
5 Vo+
6 Vo–
7 Vo–
NTC
8 R
4 D
Fig. 1
Block diagram LOK4301, LOK4601 and 4801 (rectifier
versions), all LOR and all LOS.
Fig. 2
Block diagram LOK4140, LOK4240 and LOK4740 (battery
charger versions) and LOK4001- 2RLD.
Electrical Input Data
General Condition: TA = 25 °C unless otherwise specified
Table 2: Input data
Characteristics
Vi rated
Rated input voltage range
Vi nom
Nominal input voltage
Vi
Operating input voltage range
fi
1
2
Nominal line frequency
VAC 1
Ii
Input current at 115/230
l i nl
Input current at 230 VAC and no load
l inr max
Peak inrush current at Vi = 230 V
2
LOS
LOR
LOK
Unit
100 - 240
100 - 240
100 - 240
VAC
230
230
230
85 - 264
85 - 264
85 - 264
90 - 250
90 - 250
90 - 250
VDC
50 - 60
50 - 60
50 - 60
Hz
0.3/0.15
0.52/0.26
0.8/0.4
A
0.035
18
18
19
At Io nom.
Inrush current limitation by a 16 Ω NTC resistor.
SEP 09, 2005 revised to JUL 17, 2006
Page 3 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Electrical Output Data
General Conditions: TA = 25 °C unless otherwise specified. R input not connected.
Table 3a: Output data
Output
LOK4001-2RLD LOS/LOR/LOK LOS/LOR/LOK LOK4801-2R
4301-2(R)
4601-2(R)
Characteristics
Conditions
Vo
Vi nom, 0.5 I o nom
Output voltageVo nom
min
Vo setting tolerance
R-input open-circuit
Vo adj
Adjustable voltage range
Units with feature R
Io nom
Nominal output current
Vi min - Vi max
vo
Output voltage noise
(BW = 20 M Hz)
Vi nom, I o nom,
IEC 61200
Static line/load regulation
V i min - V i max,
Io = (0.1 - 1) Io nom
Vo I
Dynamic load regulation
tr
typ max min
typ max min
typ max min typ max
5.1
12
24
±1.5
±1.5
48
Unit
V
±1.5
±1.5
%
4.5 - 5.5
10.8 - 13.2
21.6 - 26.4
43.2 - 52.8
V
5.2
1.25
2.5
4.0
0.65
1.25
2.0
1.0
A
50
100 150
100 150
200
mVpp
±1
±1
±1
±1
Vi nom, (0.1 × 0.9) Io nom
±5
±2
±1.5
±1
Transient recovery time
I o = (0.1 × 0.9) Io nom
4
4
4
4
th
Hold-up time
115/230 VAC
14/90
14/90
14/90
14/90
αUo
Temper. coefficient of Vo
V i nom , Io nom
±0.05
±0.05
±0.05
±0.05
%/K
100
1001
1001
100
kHz
fs
1
LOS
LOR
LOK
Switching frequency
%
ms
LOR and LOS have 130 kHz.
Table 3b: Output data (battery charger models)
Output
LOK4140-2RLD
Characteristics
Conditions
Vi nom, 0.5 Io nom
R-input open-circuit
min
typ
max
LOK4240-2RLD
min
typ
max
LOK4740-2RLD
min
typ
max
12.841
25.681
51.361
12.0 - 15.0
24.0 - 30.0
48.0 - 60.0
Vo
Output voltage
Vo adj
Adjustable voltage range
Io nom
Nominal output current
Vi min - Vi max
3.6
vo
Output voltage noise
(BW = 20 MHz)
Vi nom, Io nom
IEC 61204
100
Static line/load regulation
V i min - V i max
I o = (0.1 - 1) Io nom
±2 1
±11
±11
Vo I
Dynamic load regulation
VI nom, (0.1 × 0.9) Io nom
±2 1
±1.5 1
±11
1.8
150
100
150
Unit
V
0.9
A
200
mVpp
%
tr
Transient recovery time
I o = (0.1 × 0.9) Io nom
th
Hold-up time
115/230 VAC
14/90
14/90
14/90
αUo
Temper. coefficient of Vo
V i nom, Io nom
±0.05 1
±0.05 1
±0.05 1
%/K
fs
Switching frequency
100
100
100
kHz
1
4
4
4
ms
R input left open-circuit.
SEP 09, 2005 revised to JUL 17, 2006
Page 4 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Thermal Considerations
Output Power at Low Input Voltage
If an AC-DC converter is located in free, quasi-stationary air
(convection cooling) at the indicated maximum ambient
temperature TA max (see table: Temperature specifications) and
is operated at its nominal input voltage and output power, the
temperature measured at the Measuring point of case
temperature TC (see Mechanical Data) will approach the
indicated value TC max after the warm-up phase. However, the
relationship between TA and TC depends heavily on the
conditions of operation and integration into a system. The
thermal conditions are influenced by input voltage, output
current, airflow, temperature of surrounding components and
surfaces. TA max is therefore, contrary to TC max, an indicative
value only.
The output power of LOK models must be derated at low input
voltage, see figure below.
1.0
0.85
0.5
The relation between the maximum allowed output power
Po allowed and the temperature TA of the surrounding air is given
in the figure below. The rates apply if the AC-DC converter is
located in free, quasi-stationary air (convection cooling).
Note: Sufficient forced cooling allows TA to be higher than the
value given in the table if TC max according to the table is not
exceeded.
Caution: The installer must ensure that under all operating
conditions TC remains within the limits that are stated in the table
Temperature specifications.
05155a
Po allowed /Po nom
1.0
05154a
Po allowed /Po nom
0
50
Vi
75 100 125 150 175 200 225 250 275 300 VAC
Fig. 3
Maximum allowed output power versus input voltage at
TA 50°C. for LOK models.
Output Protection
Battery charger versions LOK4140-, 4240-, LOK4740-2RLD,
and the LOK4001-2RLD have a rectangular current limitation
characteristic, which limits the output current to within 100 and
150% of Io nom. The other models are protected against
overload by a current limiting circuit, which shuts down the
converter in overload condition. It automatically restarts after
removal of the overload condition (hiccup mode).
All models are short-circuit and no-load proof.
Outputs Connected in Series
0.5
0.45
0
–10
0
10
20
30
40
50
60
TA
70 °C
Fig. 4
Maximum allowed output power versus ambient temperature
at Vi >105 VAC for LOK models.
SEP 09, 2005 revised to JUL 17, 2006
Two or more converters supplying the same or different output
voltages may be connected in series. The value of the
maximum output current to be taken is defined by that unit
providing the lowest current limiting value. It should be assured
that the outputs do not feed backwards into each other caused
by their different rise/fall times at switch-on/off cycles by adding
reverse polarity diodes across each output.
Parallel Operation
Only possible with battery charger versions.
The outputs of several battery charger models with equal
output voltage (e.g. several LOK4240-2RLD) may be
connected in parallel.
Page 5 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Auxiliary Functions
Adjustable Output Voltage (R input)
As a standard feature, the LOK units offer adjustable output
voltage by using the control input R. If the R pin is left opencircuit, the output voltage is set to Vo nom. (see: Output data)
The R input is referenced to the secondary side of the
converter. Adjustment of the output voltage is possible by
means of either an external resistor or a voltage source.
b) Adjustment by means of an external voltage Vext between
Vo– and R terminal to achieve an output voltage adjustment
range of approx. 90 - 110% Vo nom (LOK 4301, 4601 and
4801 types), 93 - 117% Vo nom for battery chargers.
Vo • 2.5 V
Vext ≈ –––––––––
Vo nom
Attempting to adjust the output below this range will cause
the converter to shut down (hiccup mode).
Note: Applying an external control voltage >3 V may damage the
converter.
06029
Vo+
L
a) Adjustment by means of an external resistor Rext1:
Depending upon the value of the required output voltage, the
resistor shall be connected
either: Between the R terminal and Vo– to achieve an output
voltage adjustment range of approximately
Vo = 90 - 100 % Vo nom.(LOK4301, 4601 and 4801 types)
Vo
Rext1 ≈ 4 kΩ • –––––––––
Vo nom – Vo
or: Between the R terminal and Vo+ to achieve an output
voltage range of approximately Vo = 100 - 110% Vo nom for
rectifier versions and 100 - 125% Vo nom for battery chargers.
(Vo – 2.5 V)
Rext2 ≈ 4 kΩ • –––––––––––––––––––
2.5 V • (Vo/Vo nom – 1)
Vref = 2.5 V
Rext2
4 kΩ
R
+
control
circuit
Vext
Rext1
-
Vo-
N
Fig. 5
Output voltage control by means of the R-input
Output Voltage OK (D Output)
The D-output is referenced to Vo– and monitors the output
voltage Vo. If Vo drops below Vo t, the D-output will be disabled
(open-collector circuit). The circuitry works independently of the
input voltage and can therefore be used as battery-low indicator.
Table 4: Output Voltage OK signal
Conditions
LOK4001-2RLD
min
max
LOK4140-2RLD
min
max
LOK4240-2RLD
min
max
min
4.4
10.5
21
42
4.8
11.5
Vo t
setting
VD
Vo - Vo t min
60
60
60
60
Vo > Vo t max
I D < 50 mA
0.6
0.6
0.6
0.6
Battery Charging/Temperature Sensor
The LOK 4140/4240/4740 are designed to charge lead-acid
batteries. For optimum battery charging and extended life time
of the battery an external temperature sensor may be
connected to the R-input. The sensor should be mounted as
close as possible to one of the poles of the battery.
Depending upon the cell voltage and the temperature coefficient
of the battery, different temperature sensors are available. For
more information please see: Temperature Sensors (Accessory
Products on the Web Site) or contact Power-One.
+
– Sensor
wires
23
LOK4740-2RLD
max
46
Unit
V
If no sensor is used, the float charge voltage should be
adjusted with a suitable resistor connected to the R input (see:
Adjustable Output Voltage).
Cell voltage [V]
2.45
06123a
2.40
Vo max
2.35
2.30
2.25
Sensor Temperature
sensor
cable
2.20
R
white
2.15 Vo nom
brown
Vo+
+
–
green
Battery
Fig. 6
Voltage setting by a temperature sensor, wiring diagram
SEP 09, 2005 revised to JUL 17, 2006
05174a
Vo–
Fuse
2.10
–20
–10
0
10
VC = 2.27 V, –3 mV/K
VC = 2.23 V, –3 mV/K
20
30
40
50 °C
VC = 2.27 V, –3.5 mV/K
VC = 2.23 V, –3.5 mV/K
Fig. 7
Float charge voltage for defined temperature coefficients.
Page 6 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Electromagnetic Compatibility (EMC)
Immunity
A metal-oxide VDR together with the input fuse and the input
filter form an effective protection against high input transient
voltages, which typically occur in most installations. The LOS,
LOR, and LOK series have been successfully tested to the
following specifications:
Table 5: Immunity type tests
Phenomenon
Standard 1
Level
Coupling
mode 2
Value
applied
Waveform
Source
imped.
Test
procedure
Perform.3
Electrostatic
discharge
IEC/EN
61000-4-2
2
air discharge
8000 Vp
1/50 ns
330 Ω
10 positive and
10 negative
discharges
B
Electromagnetic
field
IEC/EN
61000-4-3
2
antenna
3 V/m
AM 80%
1 kHz
n.a.
80…1000 MHz
900 MHz
1800 MHz
B
Electrical fast
transients/burst
IEC/EN
61000-4-4
3
direct, i/ , +i/– i
2 kVp
bursts of 5/50 ns
2.5/5 kHz over
15 ms; burst
period: 300 ms
50 Ω
60 s positive
60 s negative
transients per
coupling mode
B
Surge
IEC/EN
61000-4-5
3
i/
2 kVp
1.2 / 50 µs
12 Ω
A
2
+i/– i
1 kVp
5 pos. and 5 neg.
surges per
IEC / EN
61000-4-6
2
box
3 VAC
0.15 - 80 MHz
A
Conducted
disturbances
2Ω
150 Ω
AM 80%
1 kHz
1
Related and previous standards are referenced in: Technical Information: Standards
i = input, o = output, = PE case.
3 A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible.
2
Emission
Internal input filtering keeps the conducted noise of the
converters within the frequency range of 10 kHz to 30 MHz
below level B according to EN 55011 and EN 55022 standards.
LOK4601-2RC1, Vin=230 VAC, Vo=24 V, Io=2 A,
Antenna 10 m, 24-Jan-06, ESVS30, Dubnica
dBµV/m
50
EN 55022 B
40
[dBµV]
90
07113
30
80
20
EN 55022 A
70
10
EN 55022 B
60
0
30
50
40
50
100
200
500
MHz
Fig. 9
Radiated disturbances measured according to
EN 55011/55022 at Vi nom and Io nom. LOK4601-2R, Vi = 230
VAC.
30
20
10
20
30
10
5
2
1
0.5
0.1
0.05
MHz
0.02
0.01
0
Fig. 8
Typical conducted disturbances (quasi-peak) at the input
measured according to EN 55011/55022 at Vi nom and Io nom.
LOK4601-2R, Vi = 230 VAC.
SEP 09, 2005 revised to JUL 17, 2006
Page 7 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Immunity to Environmental Conditions
Table 6: Mechanical stress
Test Method
Ca
Standard
Test Conditions
Status
40 ±2 °C
Damp heat
steady state
IEC/EN 60068-2-78
MIL-STD-810D section 507.2
Temperature:
Relative humidity:
Duration:
93 +2/-3 %
21 days
Ea
Shock
(half-sinusoidal)
IEC/EN 60068-2-27
MIL-STD-810D section 516.3
Acceleration amplitude:
Bump duration:
Number of bumps:
15 gn = 147 m/s2
11 ms
18 (3 each direction)
Converter
operating
Eb
Bump
(half-sinusoidal)
IEC/EN 60068-2-29
MIL-STD-810D section 516.3
Acceleration amplitude:
Bump duration:
Number of bumps:
10 gn = 98 m/s2
11 ms
6000 (1000 each direction)
Converter
operating
Fc
Vibration
(sinusoidal)
IEC/EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
0.15 mm (10 - 60 Hz)
2 g n = 20 m/s2 (60 - 150 Hz)
10 - 150 Hz
3.75 h (1.25 h each axis)
Converter
operating
Frequency (1 Oct/min):
Test duration:
Converter
not
operating
Table 7: Temperature specifications
1
Characterisitcs
Conditions
Operational 1
TA
Ambient temperature
TC
Case temperature
TS
Storage temperature
min
Non operational
max
Unit
°C
–10
50
–10
80
–40
85
See: Thermal Consideration.
Table 8: MTBF Values
MTBF
Type
Ground benign
TC = 40 °C
According to MIL-HDBK-217F, Notice 2
LOK
1 600 000
Ground fixed
TC = 40 °C
TC = 70 °C
400 000
200 000
Ground mobile
TC = 50 °C
Unit
120 000
h
Mechanical Data
Dimensions in mm.
Weight:
S90042
38 (1.5")
LOS/LOR: approx. 0.25 kg
LOK: approx. 0.35 kG
Tc
90 (3.54")
Tc
European
Projection
LED
Fig. 10
Case
SEP 09, 2005 revised to JUL 17, 2006
108 (4.25")
113.6 (4.47")
Page 8 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Installation Instructions
Safety and Installation Instructions
Terminal Allocation
The terminal allocation table defines the electrical potentials of
the AC-DC converters. For mechanical positions of the
terminals see: Mechanical Data.
Table 9: Terminal allocation
Terminal
Electrical
Connection to the system shall be according to Terminal
allocation and Mechanical Data. Check for hazardous voltages
before altering any connection.
LOK/LOR/LOS
1
Input
2
Protective earth
3
Input
N
4
D/Output (positive)
D /+
5
Output (positive)
+
6
Output (negative)
–
7
Output (negative)
–
8
R input or open
R / n.c.
These converters are components, intended exclusively for
inclusion within other equipment by an industrial assembly
operation or by professional installers. Installation must strictly
follow the national safety regulations in compliance with the
enclosure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
L
Ensure that a converter failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also Safety of
operator accessible output circuit.
The phase input (L ) is internally fused by a 1.6 A slowblow
type. It is not customer-accessible. This fuse is designed to
protect the unit in case of overcurrent. Option F or external
fuses in the wiring to one or both input pins (L and/or N ) may
therefore be necessary to ensure compliance with local
requirements.
A second fuse in the wiring to the terminal N is needed if:
Standards and Approvals
The converters correspond to class I equipment. All models
are UL recognized according to UL 1950, UL recognized for
Canada to CAN/CSA C22.2 No. 950-95 and TÜV, approved to
IEC/EN 60950 standards.
LOR and LOS are UL 508-listed components.
The converters have been evaluated for:
• Building in
• Double or reinforced insulation or an earthed part between
input and output.
• Basic insulation between input and earth
• Functional insulation between output and earth
• The use in a pollution degree 2 environment
• Connecting the input to a primary circuit with overvoltage
category II.
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards.
For details see the Declaration of Conformity (last 2 pages).
Protection Degree
• Local requirements demand an individual fuse in each
source line
• Neutral and earth impedance is high or undefined
• Phase and neutral of the mains are not defined or cannot be
assigned to the corresponding termials (L to phase and
N to neutral).
Note: Do not open the converters, or guarantee will be invalidated.
Make sure that there is sufficient air flow available for
convection cooling. This should be verified by measuring the
case temperature when the unit is installed and operated in the
end-use application. The maximum specified case
temperature TC max shall not be exceeded.
Isolation
The electric strength test is performed in the factory as routine
test in accordance with EN 50116 and IEC/EN 60950and
should not be repeated in the field. Power-One will not honor
any guarantee/warranty claims resulting from electric strength
field tests.
Caution: Testing by applying AC voltages will result in high and
dangerous leakage currents flowing through the Y-capacitors
(see fig. Block diagram).
IP 20: All models.
Table 10: Isolation
Characteristic
Electric
strength
test voltage
Input to
protective earth
Input to
output
Output to
protective earth
Unit
Actual factory test 1 s
2.1
2.1 1
1.4
kVDC
AC test voltage equivalent
to actual factory test
1.5
1.5 1
1.0
kVAC
>300
>300
>100
MΩ
Insulation resistance at 500 VDC
1
In accordance with EN 50116 and IEC/EN 60950 only subassemblies are pre-tested with 4.3 kVDC or 3.0 kVAC.
SEP 09, 2005 revised to JUL 17, 2006
Page 9 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Leakage Currents in AC-DC Operation
1500 Ω
MI
10061
Leakage currents flow due to internal leakage capacitance and
RFI suppression Y-capacitors. The current values are
proportional to the mains voltage and nearly proportional to the
mains frequency and are specified at an input voltage of 264 V
(50 Hz) where phase, neutral and protective earth are correctly
connected as required for class I equipment.
Under test conditions the leakage current flows through a
measuring instrument (MI) as described in fig. Measuring
instrument for earth leakage current tests, which takes into
account impedance and sensitivity of a person touching
accessible parts. The current value is calculated by dividing
the measured voltage by 500 W. If inputs and/or outputs of
LOS, LOR, or LOK models are connected in parallel, their
individual leakage currents are added.
10053
L
500 Ω
L
Vo+
N
Vo-
N
10 kΩ
220 nF
MI for
earth
leakage
current
22 nF
V
Fig. 11
Measuring instrument (MI) for earth leakage current tests
according to IEC/EN 60950.
MI for
output
leakage
current
Fig. 12
Test setup.
Table 11: Leakage currents
Characteristic
Maximum earth
leakage current
Maximum output
leakage current
LOK
Unit
Permissible according to IEC/EN 60950
3.5
mA
Specified value at 264 V, 50 Hz
1.0
Permissible according to IEC/EN 60950
0.25
Specified value at 264 V, 50 Hz
0.035
SEP 09, 2005 revised to JUL 17, 2006
Page 10 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
Safety of Operator-Accessible Output Circuit
If the output circuit of an AC-DC converter is operator
accessible, it shall be a SELV circuit according to the IEC/EN
60950 related safety standards.
Mains
~
~
10021
Fuse
Fuse
+
AC-DC
converter
SELV
–
The following table shows a possible installation configuration,
compliance with which causes the output circuit of an LOS,
LOR, or LOK4000 converter to be a SELV circuit according to
IEC/EN 60950 up to a configured output voltage (sum of
nominal voltages if in series or +/– configuration) of
36 V.
However, it is the sole responsibility of the installer to assure
the compliance with the relevant and applicable safety
regulations.
Earth connection
Fig. 13
Schematic safety concept.
Use fuses and earth connection as per Installation
Instructions and table Safety concept leading to a SELV
output circuit.
Table 12 : Safety concept leading to a SELV output circuit
Conditions
AC-DC converter
Installation
Result
Nominal Supply
voltage
Grade of insulation between
input and output, provided
by the AC-DC converter
Measures to achieve the resulting
safety statuts of the output circuit
Safety statuts of the AC-DC
converter output circuit
Mains ≤250 VAC
Double or reinforced
Earth connection 1 and installation
according to the applicable standards
SELV circuit
1 The
earth connection of terminal no. 2 has to be provided by the installer according to the relevant safety standards,
e.g. IEC/EN 60950
Description of Options
Option F: Built-in Second Fuse
A built-in second fuse in the neutral input line enables safe
connection to the mains where phase and neutral are not
defined or cannot be identified as e.g., in the case of plug and
socket connection to the mains via Schuko-plugs, see also
Installation Instruction.
Option K: System Connectors
For installation into systems using preassembled harnesses
the converters are available with connectors fitted with screw
terminals. The system connectors are UL-listed and approved
for currents up to 10 A. Wire cross-sections: Solid wires 1.5
mm2 (AWG14), stranded wires 1 mm2 (AWG16).
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical
components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written
consent of the respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on
the date manufactured. Specifications are subject to change without notice.
SEP 09, 2005 revised to JUL 17, 2006
Page 11 of 12
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LOS, LOR, LOK4000 Series Data Sheet
DIN-Rail Mountable AC-DC (DC-DC) Converters
EC Declaration of Conformity
We
Power-One AG
Ackerstrasse 56, CH-8610 Uster
declare under our sole responsibility that all LOS/LOR/LOK series AC-DC (DC-DC)
converters carrying the CE-mark are in conformity with the provisions of the Low Voltage
Directive (LVD) 73/23/EEC of the European Communities.
Conformity with the directive is presumed by conformity wih the following harmonized
standards:
• EN 61204: 1995 (= IEC 61204: 1993, modified)
Low-voltage power supply devices, DC output - Perfomance characteristics
and safety requirements
• EN 60950: 2000 (= IEC 60950: 1999) for LOS/LOR models
EN 60950-1: 2001 (= IEC 60950-1: 2001) for LOK models
Safety of information technology equipment.
The installation instructions given in the corresponding data sheet describe correct installation
leading to the presumption of conformity of the end product with the LVD. All these regulators
are components intended exclusively for inclusion within other equipment by an industrial
assembly operation or by professional installers. They must not be operated as stand alone
products.
Hence conformity with the Electromagnetic Compatibility Directive 89/336/EEC (EMC
Directive) needs not to be declared. Nevertheless, guidance is provided in most product
application notes on how conformity of the end product with the indicated EMC standards
under the responsibility of the installer can be achieved, from which conformity with the
EMC directive can be presumed.
Uster, 1 Sept. 2005
Power-One AG
Rolf Baldauf
Vicepresident Engineering
SEP 09, 2005 revised to JUL 17, 2006
Page 12 of 12
Johann Milavec
Director Projects and IP
www.power-one.com
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