LRP2340-9B1 [BEL]
AC-DC Power Factor Correction Module,;型号: | LRP2340-9B1 |
厂家: | BEL FUSE INC. |
描述: | AC-DC Power Factor Correction Module, |
文件: | 总22页 (文件大小:4268K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LR Series
240 – 300 Watt AC-DC and DC-DC Converters
The LR Series of AC-DC converters represents versatile power
supplies ideally suitable for use in advanced electronic systems.
Features include full power factor correction, good hold-up time,
high efficiency and reliability, low output noise, and excellent
dynamic response to load/line changes.
The converter inputs are protected against surges and transients.
An input over- and undervoltage lockout circuitry disables the
outputs if the input voltage is outside of the specified range. Input
inrush current limitation is included to prevent circuit breakers
and fuses from tripping at switch-on.
The outputs are open- and short-circuit proof.
Full input-to-output, input-to-case, output-to-case, and output to
output isolation is provided. Particularly the outputs exhibit an
extended insulation to the case.
ꢀꢀꢀ
ꢇ.ꢇꢃ
ꢅ U
Features
ꢀꢁꢂ
ꢁ.ꢁꢃ
•
•
•
•
•
•
Class I equipment
Universal AC input voltage range with PFC and DC input
Inrush current limitation
2 isolated, adjustable outputs
No load, overload, and short-circuit proof
Rectangular current limiting characteristic with flexible
load distribution
•
•
•
•
•
•
•
•
•
•
Inhibit function
Parallel operation with active current sharing
Interruption time 20 ms
Immunity according to EN 61000-4-2, -3, -4, -5, -6, -8
RoHS-compliant
Fire & smoke according to EN 45545
All PCB boards protected by lacquer
Very high reliability
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ꢅ U
ꢀꢁꢂ
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5 year warranty
AREMA compliant
Safety-approved to the latest edition of IEC/EN 62368-1
and UL/CSA 62368-1
1
1
1
for AC input only
Table of Contents
Description........................................................................................1
Model Selection................................................................................2
Functional Description......................................................................3
Electrical Input Data .........................................................................4
Electrical Output Data.......................................................................5
Auxiliary Functions ...........................................................................9
Electromagnetic Compatibility (EMC).............................................12
Immunity to Environmental Conditions...........................................14
Mechanical Data.............................................................................16
Safety and Installation Instructions.................................................19
Description of Options....................................................................20
Accessories....................................................................................21
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BCD.00580 Rev AE, 27-Jun-2019
LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Description
All PCB boards are coated with a protective lacquer.
The case design allows for operation at nominal load up to 71 °C with natural cooling. If forced cooling is provided, the ambient
temperature may exceed 71 °C, but the case temperature must remain below 95 °C.
A temperature sensor generates an inhibit signal, which disables the outputs when the case temperature TC exceeds the limit. The
outputs are automatically re-enabled when the temperature drops below the limit.
LED indicators display the status of the converter and allow for visual monitoring of the system at any time.
The converters can either be plugged into a 19” rack system according to IEC 60297-3, or be chassis mounted. Two heat sinks of
different size and cooling plates for chassis mounting (option B, B1) are available.
Model Selection
Table 1: Model selection
Output 1
Output 2
Power
Operating Input Voltage
Efficiency
Model
Options
1
2
η110
min [%] typ [%] min [%] typ [%]
η230
Vo nom
Io nom
Vo nom
Io nom
Po nom
Vi cont
[V]
[A]
[V]
[A]
[W]
12
12
15
15
10
12.5
8
12
12
15
15
10
12.5
8
240
300
240
300
90
90
90
90
91
91
91
91
90
90
90
90
92
92
92
92
LR2320-9
LRP2320-9
LR2540-9
LRP2540-9
90 – 264 VAC
F0, F2,
B, B1
125 – 300 VDC
10
10
1
Efficiency at TA = 25 °C, Vi = 110 VAC, Io nom, Vo nom
Efficiency at TA = 25 °C, Vi = 230 VAC, Io nom, Vo nom
2
Part Number Description
LR 2 3 20 -9 B1
Operating input voltage Vi cont (continuously):
90 – 264 VAC, 125 – 300 VDC ........................ LR, LRP
Number of outputs................................................................2
Nominal voltage of main output Vo1 nom
12 V .............................................................................3
15 V .............................................................................5
Other voltages1 ......................................................1 - 9
2
Nominal voltage of tracking output Vo2
12 V.............................................................................20
15 V.............................................................................40
Other specifications or additional features1 ....... 11 – 99
Operational temperature range: TA:
TA = –40 to 71 °C, TC ≤ 95 °C ......................................-9
Other1 ...............................................................-0, -5, -6
Auxiliary functions and options:
Fuse options......................................................... F0, F2
Cooling plate standard case...................................B, B1
1
Customer-specific models. No safety-relevant changes compared to the respective basic model, e.g. different mechanical details, special
markings, mounted front plates, reduced output voltage, etc.
The nominal voltages of both outputs are always equal.
2
Note: The sequence of options must follow the order above.
Example: LR2320-9B1: AC-DC converter, operating input voltage range 90 to 264 VAC, 2 isolated outputs, each providing 12 V,
10 A, cooling plate B1, RoHS-compliant for all six substances.
Product Marking
Basic type designation: applicable approval marks, CE mark, warnings, pin designation, patents and company logo, identification of LEDs.
Specific type designation: input voltage range, nominal output voltages and currents, degree of protection, batch no., serial no., and
data code including production site, modification status, and date of production.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Functional Description
The input voltage is fed via an efficient filter and a bridge rectifier to the PFC-corrected step-up converter, which generates the
intermediate voltage across the bulk capacitor Cb. The inrush current is limited by the resistor Rinr, which is shorted by Vinr, after
the bulk capacitor was charged.
The bulk capacitor sources a half bridge DC-DC converter and provides the power during the specified hold-up time.
The main transformer exhibits two secondary windings for the two outputs. The resultant voltages are rectified by synchronous
rectifiers in order to provide the best efficiency. Their ripple voltages are smoothed by a dual choke and output filters. The control
logic senses the main output voltage Vo1 and generates the gate signals for the DC-DC converter, which are transferred by isolated
drivers to the primary side.
The second output is tracking the main output voltage, but has its own current limiting circuit. If the main output voltage drops due
to over current, the second output voltage will drop as well and vice versa. Primary current sensing limits the sum of both output
currents, such allowing for loading the main output up to 140% of Io1 nom
.
The output voltages can be adjusted by external means. Parallel operation of several converters is possible by
connecting the T-pins together, in order to provide active current sharing. Both outputs can be connected in parallel or
in series. They exhibit a rectangular current limitation characteristic. Switchable preloads ensure good regulation even with no
load at one output.
A control output (D) and two LEDs signal correct operation of the converter. In case of an output overvoltage of the main output,
the converter is disabled by a latch.
When the input voltage is too high, the overvoltage lockout disables the DC-DC converter and protects it from damage.
Temperature sensors on the primary and secondary side prevent the converter from excessive warm-up.
A cooling plate for chassis-mounting is available (opt. B, B1).
ꢂꢃꢄ9ꢁb
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R
ꢃagnetic
feedback
Secondary
control
logic
ꢄꢐ i
2ꢁ
2
C
ꢇ
Fuse
2ꢊ
2ꢐ
N~
D
Synchr.
rect. drive
22 T
C
b ꢅ
ꢄ2 Vo2ꢅ
C
ꢏ
C
ꢇ
ꢅ
C
ꢇ
ꢄꢎ Vo2ꢆ
Synchr.
rect. drive
V
PL2
V
inr
ꢎ
Voꢄꢅ
ꢊ
C
C
ꢇ
ꢅ
ꢀꢁ
ꢀ2
L~
ꢇ
ꢄ
ꢄꢁ
Fuse
Voꢄꢆ
ꢐ
V
PLꢄ
C
ꢇ
Auꢏiliary
converter
2ꢎ
ꢄ
2
Fuse not fitted with opt. Fꢁ
Additional fuse only fitted with opt. F2
Fig. 1
Block diagram
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Electrical Input Data
General conditions:
- TA = 25 °C, unless TC is specified.
- Pin 18 (i) connected to pin 8, pin 16 (R), pin 18 (D), and pin 22 (T) left open-circuit.
Table 2: Input data
Model
LR
LRP
Unit
Characteristics
Conditions
min
typ
max
min
typ
max
Vi
Rated input voltage range
100
90
240
264
300
100
90
240
264
300
VAC 1
Io = 0 – Io nom
TC min to TC max
Vi cont Operating input voltage range
Vi DC Continuous DC input voltage range
Vi nom Nominal input voltage1
125
125
VDC
VAC
A
50 – 60 Hz
(110) 230
(2.5) 1.2
(110) 230
(3.1) 1.5
Ii
Input current
Vi nom, Io nom
Pi 0
No-load input power
Vi min – Vi max, Io = 0
Converter inhibited
15
15
W
µF
Pi inh Idle input power
1.3
2
1.3
2
Cb
thu
ton
Boost capacitance
Interruption time
Start-up time
360
360
Vi = 0 AC or DC, Io nom
Vi = 0 → Vi nom, Io nom
20
20
ms
500
500
Vi abs Input voltage limits without damage < 2 s
-400
400
-400
400
Vpeak
1
Rated input frequency: 50 – 60 Hz, operating frequency: 47– 63 Hz.
Input Fuse and Protection
A VDR together with the input fuse and a symmetrical input filter form an effective protection against high input transient voltages.
If option F0 was chosen, the installer has to provide an external circuit breaker or fuse according to table 3. Without option F, a fuse
is incorporated in the phase line (pins 30 + 32). A second fuse in the neutral line may be necessary in certain applications (option F2);
see Options and Installation Instructions.
Table 3: Fuse specification (AC input voltage)
Model
Fuse rating (AC input)
Reference
LR2320, LR2540
6.3 A, 250 V, slow, 5 × 20 mm
SCHURTER 0001.2512.PT
LRP2320, LRP2540 6.3 A, 250 V, slow, 5 × 20 mm
Input Under-/Overvoltage Lockout
If the input voltage is below approx. 80 VAC or exceeds Vi op max, an internally generated inhibit signal disables the outputs. If Vi is below
Vi min, but above the undervoltage lockout level, the output voltage may be below the value specified in the tables Electrical Output Data.
Inrush Current Limitation
All models exhibit an electronic inrush current limitation to protect connectors and switching devices against damage.
Efficiency
95
90
85
Vi=230Vac
Vi=110Vac
80
Vi=90Vac
75
70
0
2
4
6
8
10
12
14
Output current per output [A], Io1=Io2
Fig. 2
Efficiency versus Vi and Io (LRP2320, both outputs connected in series)
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Electrical Output Data
General Conditions:
– TA = 25 °C, unless TC is specified.
– Pin 18 (i) connected to pin 8, pin 16 (R), pin 20 (D), and pin 22 (T) left open-circuit.
Table 4a: Output data of LR2320 and LRP2320
Model (Nom. output voltage)
Characteristics
LR2320 (2 x 12 V)
Output 1 Output 2
typ
Vi nom, 0.5 Io nom 11.93 12.0 12.07
LRP2320 (2 x 12 V)
Output 1 Output 2
typ
Unit
Conditions
min
max
min
typ
max
min
max
min
typ
max
Vo
Vo BR
Io nom
Output voltage
12.0
11.93 12.0
12.07
12.0
V
A
Output protection
(suppressor diode)
Output 2
-
14.3
15.8
-
14.3
15.8
Output current nom. 1
107
10
12.57
12.5
V
i min – V
i max
Io1L, Io2L Output current limit1
10.5
212
177
10.5
13
21.257
13
TC min – TC max
Io12L
Output current limit1, 2
-
262
-
Vi nom, Io nom
Output noiseincl.
Vo
60
60
60
60
mVpp
V
spikes6
BW = 20 MHz
3
3
3
3
Vo adj
∆Vo u
Adjustment by R-input4
6.0
13.21
±120
6.0
13.21
±120
Vi min – V
i max
Static line/load regulation
(total deviation of Vo)
(0.1 – 1) Io nom
mV
Voltage
deviation
Vi nom, 0.5 Io2 nom
Vo d
to d
±200
1
±200
±250
1
±250
5
Dynamic
load
regulation
Io1 nom ↔ 0.5 Io1 nom
Recovery
time5
3
3
ms
and after turn on
Io nom
Temperature coefficient
of output voltage
α v o
0.02
-
0.02
-
%/K
TC min – TC max
1
If Vo is increased above Vo nom through R-, or T-input, the output currents should be reduced so that Po nom is not exceeded.
2
3
4
5
6
7
Both outputs connected in parallel
See Output voltage regulation
For battery charger application, a defined negative temp. coefficient can be provided by using a temp. sensor (see Accessories)
See Dynamic load regulation
Measured with a ceramic cap of 1 µF across each output.
Io1 can be increased to 140% of Io1 nom if Io2 is reduced accordingly
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Table 4b: Output data of LR2540 and LRP2540. General conditions as per table 4a
Model (Nom. output voltage)
Characteristics
LR2540 (2 x 15 V)
Output 1 Output 2
typ
Vi nom, 0.5 Io nom 14.91 15.0 15.09
LRP2540 (2 x 12 V)
Output 1 Output 2
typ
Unit
Conditions
min
max
min
typ
max
min
max
min
typ
max
Vo
Vo BR
Io nom
Output voltage
15.0
14.91 15.0
15.09
15.0
V
A
Output protection
(suppressor diode)
Output 2
-
17.1
18.9
-
17.1
18.9
Output current nom. 1
87
8
9.67
10.1
9.6
V
i min – V
i max
Io1L, Io2L Output current limit1
8.4
13.67
8.4
16.327 10.1
TC min – TC max
Io12L
Output current limit1, 2
Output noiseincl. spikes6
Adjustment by R-input4
16.82
-
19.72
-
Vi nom, Io nom
Vo
75
75
75
75
mVpp
V
BW = 20 MHz
3
3
3
3
Vo adj
∆Vo u
7.5
17.251
±150
7.5
17.251
±150
V
i min – V
i max
Static line/load regulation
(total deviation of Vo)
(0.1 – 1) Io nom
mV
Voltage
deviation
V
i nom, 0.5 Io2 nom
Vo d
to d
±250
1
±250
±300
1
±300
5
Dynamic
load
regulation
Io1 nom ↔ 0.5 Io1 nom
Recovery
time5
3
3
ms
and after turn on
Io nom
Temperature coefficient
of output voltage
α v o
0.02
-
0.02
-
%/K
TC min – TC max
1
If the output voltages are increased above Vo nom through R-input control, or option T, the output currents should be reduced accordingly so
that Po nom is not exceeded.
Both outputs connected in parallel
See Output voltage regulation
2
3
4
For battery charger applications, a defined negative temperature coefficient can be provided by using a temperature sensor (see
Accessories)
See Dynamic load regulation
Measured with a ceramic cap of 1 µF across each output.
Io1 can be increased to 140% of Io1 nom if Io2 is reduced accordingly
5
6
7
Thermal Considerations
If a 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 within the specified input voltage range with nominal load, 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 upon the conditions of operation and integration
into a system. The thermal conditions are influenced by input voltage, output current, airflow, and temperature of surrounding
components and surfaces. TA max is therefore, contrary to TC max, an indicative value only.
Caution: The installer must ensure that under all operating conditions TC remains within the limits stated in the table Temperature specifications.
Notes: Sufficient forced cooling or enhanced cooling with the help of cooling plates (options B, B1) allows for TA higher than 71 °C (e.g. 85 °C),
as long as TC max is not exceeded.
Thermal Protection
Two temperature sensors generate an internal inhibit signal, which disables the converter in the case of overtemperature. The
outputs automatically recover when the temperature drops below the limit.
Interruption Time
The integrated storage capacitor (Cb) is loaded to the boost voltage and ensures full output voltage with nominal load during the
specified interruption time of 20 ms.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Output Protection
The 2nd output is protected by a suppressor diode against overvoltage, which could occur due to a failure of the internal control
circuit. This suppressor diode was not designed to withstand externally applied overvoltages. Overload at any of the outputs will
cause both outputs to shut-down.
Note: Vo BR of the suppressor diode is specified in Electrical Output Data. If this voltage is exceeded, the suppressor diode generates losses
and may become a short circuit.
Note: The output voltage of the first output is monitored. If it exceeds typ. 140% of Vo nom for 10 ms, the converter is inhibited by a latch. To
reactivate, Vi must be removed or the converter disabled through an inhibit signal to pin 18.
Each output has its own current limiting circuit, providing a rectangular output characteristic and protecting against short circuit.
There is no limitation for the capacitive load, and battery charging is possible as well.
Series and Parallel Connection
Both outputs of the same converter can be series-connected or parallel-connected in order to double the output current or the
output voltage respectively.
Outputs of different converters of the same model type may be series-connected.
In parallel connection of several converters, the T-pins should be interconnected so that all converters share the output current
equally.
If both outputs of each converter are connected in series, Vo1– of both converters should be connected together. Interconnect the
T-pins as well; see fig. 3.
ꢇꢀꢆ9ꢂ
Vo2ꢃ
ꢆ2
Vo2ꢄ
ꢆꢉ
Voꢆꢃ
ꢉ
Converter
Voꢆꢃ
ꢊ
ꢅꢆ
T
22
R
ꢆꢊ
Voꢆꢄ
ꢆꢈ
Voꢆꢄ
ꢋ
Load
Vo2ꢃ
ꢆ2
Vo2ꢄ
ꢆꢉ
Voꢆꢃ
ꢉ
Converter
ꢅ2
Voꢆꢃ
T
ꢊ
22
R
ꢆꢊ
Voꢆꢄ
Voꢆꢄ
ꢆꢈ
ꢋ
ꢀaꢁ. ꢂ converters
in parallel connection
ꢄ
ꢃ
T
Power bus
Fig. 3
Parallel connection of double-output models with both outputs connected in series.
T-pins and R-pins are referenced to Vo1–.
Notes:
– Not more than 5 converters should be connected in parallel.
– If several outputs are connected in series, the resulting voltage may exceed the SELV level.
– The R-pins should be left open-circuit. If not, the output voltages must individually be adjusted prior to paralleling within 1 to 2%, or the R-pins
should be interconnected.
– Series connection of second outputs without involving their main outputs should be avoided, as regulation may be poor.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Output Voltage Regulation
If both outputs are connected in parallel or in series, the converter exhibits a rectangular output characteristic; see fig. 4.
The typ. dynamic load regulation illustrates fig. 5.
Output 1 is under normal conditions regulated to Vo nom, irrespective of the output currents.
However, Vo2 depends upon the load distribution; see fig. 6. The converters have incorporated switchable preloads and do not
need a minimum load.
Note: If output 2 is not used, connect it in parallel with output 1! This ensures good regulation and efficiency.
Vo
Vo nom
ꢀꢂꢀꢀꢃa
Vo
Vod
Vo ±ꢀꢁ
Vod
Vo ±ꢀꢁ
ꢀ.9ꢁ
td
td
t
ꢀ.ꢂ
ꢄo/ꢄo nom
ꢀ
Io
IoL
ꢂ.ꢃ
≥ ꢀꢂ µs
≥ ꢀꢂ µs
ꢂ
t
ꢂꢃꢀꢂ2c
Io
Io nom
ꢀ
ꢀ.ꢂ
ꢃ.ꢀ
Fig. 4
Fig. 5
Output characteristic Vo versus Io
(both outputs connected in parallel or in series)
Typical dynamic load regulation of Vo.
In a symmetrical configuration the output 1 is regulated to Vo1 nom, regardless of the output currents. If the load on output 2 is too
small (<10% of Io nom), its voltage will rise and may activate the overvoltage protection (Suppressor diode).
Vo2 depends upon the load distribution: If each output is loaded with at least 10% of Io nom, the deviation of Vo2 remains within ±5%
of Vo nom. The following figures explain the regulation with different load distributions. If Io1 = Io2 or the two outputs are connected in
series, the deviation of Vo2 remains within ±1% of the value of Vo nom
.
Note: If output 2 is not used, we recommend to connect it in parallel to Vo1. This results in improved efficiency and stability.
Vo2 ꢅVꢆ
ꢀꢂ.ꢁ
ꢄoꢀ=ꢀ2.ꢁA
ꢄoꢀ=ꢀꢃA
ꢀꢂ
ꢄoꢀ=7.ꢁA
ꢄoꢀ=ꢁA
ꢄoꢀ=2.ꢁA
ꢄo=ꢀA
ꢀ2.ꢁ
ꢀ2
ꢄoꢀ=ꢃ.ꢀA
ꢀꢀ.ꢁ
ꢀꢀ
ꢄo2 ꢅAꢆ
ꢀꢁ
ꢃ
ꢁ
ꢀꢃ
Fig. 6a
Models LR2320:Vo2 versus Io2 with various Io1
Fig. 6b
Models LR2540: Vo2 versus Io2 with various Io1
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Auxiliary Functions
Inhibit for Remote On/Off
The outputs may be enabled or disabled by means of a logic signal (TTL, CMOS, etc.) applied between the inhibit pin 18 (i) and pin
10 or 8 (Vo1–). In systems with several converters, this feature can be used to control the activation sequence of the converters.
If the inhibit function is not required, connect the inhibit pin 18 with pin 10 or 8 (Vo1–).
The inhibit disables the DC-DC converter immediately, without respecting the hold-up time. The input section of the converter is
not disabled.
Note: If pin 18 is not connected, the outputs are disabled.
Table 5: Inhibit characteristics
Characteristics
Conditions min
typ max Unit
Vo = on
Vo = off
-10
Vi min – Vi max
2.4
0.8
V
50
Vinh Inhibit voltage
Iinh
tr
Inhibit current
Rise time
Vinh = 0
-600
µA
ms
40
5
td
tf
Delay time
Fall time
Depending on Io
tr
Vo/Vo nom
ꢃꢄꢀ9ꢅ
ꢁ
td on
ꢇ
Voꢀꢂ
I
inh
ꢀ.ꢁ
ꢀ
ꢀꢅ
i
V
inh
tf
ton
i
ꢁ
ꢅ
Voꢀꢁ
t
ꢂꢃꢁ9ꢄa
ꢀ
Fig. 7
Fig. 8
Output response as a function of inhibit control
Definition of Vinh and Iinh.
Output Voltage Adjust
As a standard feature, the converters offer an adjustable output voltage. The control input R (pin 16) accepts either a control
voltage Vext or a resistor Rext to adjust the output voltage. When input R is not connected, the output voltage is set to Vo nom
.
ꢆꢇꢀ97
Voꢀꢁ
ꢄ
Reꢃt2
ꢄ kΩ
V
ref = 2.ꢅ V
ꢁ
ꢀꢈ
R
ꢁ
ꢂ
Control
logic
Veꢃt
Reꢃtꢀ
ꢉ
Voꢀꢂ
Fig. 9
Output voltage adjustment
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
a) Adjustment by means of an external control voltage Vext between pin 16 (R) and pin 10 or 8 (Vo1–):
The control voltage range is 0.75 V to 2.85 V and allows for an adjustment in the range of approx. 50 – 110% of Vo nom
Vo • 3.5 V
.
Vext ≈ –––––––– - 1
Vo nom
Caution: Applying an external control voltage >3 V may damage the converter.
b) Adjustment by means of an external resistor:
Depending on the value of the required output voltage, the resistor shall be connected
either: between pin 16 (R) and pin 10 or 8 (Vo1–) to adjust the output voltage in the range of approx. 50 –100% of Vo nom
.
Vo
–––––––––
Rext1 ≈ 4 kΩ •
Vo nom – Vo
or: between pin 16 (R) and pin 4 or 6 (Vo1+) to adjust the output voltage in the range of 100 – 110% of Vo nom
(Vo – 2.5 V)
.
––––––––––––––––––
Rext2 ≈ 4 kΩ •
2.5 V • (Vo/Vo nom – 1)
Caution: To prevent the converter from damage, the value of R’ext shall never be less than the value for increasing Vo1 to 110% !
Notes:
– If the output voltages are increased above Vo nom via R-input control or option T, the output currents should be reduced, so that Po nom is not
exceeded.
– The second output of double-output models follows the voltage of the controlled main output.
Output Voltage Monitor
The output voltage monitor generates a logic “low” signal (NPN open-collector output) at the D-output (pin 20),
when Vo1 ≥ 0.96 Vo nom and ≤ 1.04 Vo nom (typ. values). Then, a green LED (Out OK) at the frontplate is illuminated. If the output
voltage is adjusted by the R-input, the trigger levels are corrected accordingly.
At low D-output, ID should be ≤ 50 mA. If the D-output is high (open collector), VD should be ≤ 50 V.
Note: Output overvoltage activates a latch;see Output Protection.
ꢄꢅꢀ99a
Voꢀꢁ
ꢉ
R
p
ꢃ
D
ꢆpen
collector
D
2ꢇ
ꢈ
ꢀꢇ Ω
V
D
Voꢀꢂ
Fig. 10
Output voltage monitor
LED Indicators
Two green indicators are visible at the front plate:
- Out OK; see Output Voltage Monitor
- In OK. This signal is activated, when Vi is in range and the converter is not disabled by the inhibit signal.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Battery Charging /Temperature Sensor
All converters with an R-input are suitable for battery charger application. For optimal battery charging and life expectancy of the
battery an external temperature sensor can be connected to the R-input. The sensor is mounted as close as possible to the battery
and adjusts the output voltage according to the battery temperature.
Depending upon cell voltage and the temperature coefficient of the battery, different sensor types are available, see Accessories.
Cell voltage ꢅVꢆ
ꢁꢉꢀꢃ9b
2.ꢄꢂ
ꢃꢄꢃ99d
2.ꢄꢁ
Voꢁ
Voꢀ
Power
supply
Load
ꢂnput
2.ꢃꢂ
R
2.ꢃꢁ
2.2ꢂ
2.2ꢁ
2.ꢀꢂ
2.ꢀꢁ
ꢀ
ꢁ
ꢁ
Vo safe
Battery
Temperature sensor
ꢇ2ꢁ
ꢇꢀꢁ
ꢁ
ꢀꢁ
2ꢁ
ꢃꢁ
ꢄꢁ
ꢂꢁ ꢈC
VC = 2.27 V, ꢇꢃ mV/ꢊ
C = 2.2ꢃ V, ꢇꢃ mV/ꢊ
VC = 2.27 V, ꢇꢃ.ꢂ mV/ꢊ
VC = 2.2ꢃ V, ꢇꢃ.ꢂ mV/ꢊ
V
Fig. 11
Fig. 12
Connection of a temperature sensor
Trickle charge voltage versus temperature for defined
temperature coefficient. Vo nom is the output voltage with
open R-input.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Electromagnetic Compatibility (EMC)
The LR Series has been successfully tested to the following specifications:
Electromagnetic Immunity
Table 6: Electromagnetic immunity (type tests). Corresponds or Exceeds EN50121-3-2:2016 and AREMA
Phenomenon
Standard Level Coupling mode 1 Value
applied
Waveform
Source
imped.
Test procedure
In
Perf.
oper. crit.2
Electrostatic
discharge (to case) 61000-4-2
IEC/EN
contact discharge ±6000 Vp
10 pos. & 10 neg.
discharges
330 Ω
150 pF
4
x
1/50 ns
yes
yes
A
A
air discharge
antenna
±8000 Vp
20 V/m
20 V/m
20 V/m
5 V/m
Electromagnetic
field
IEC/EN
61000-4-3
AM 80% / 1 kHz
N/A
80 – 800 MHz
800 – 1000 MHz
1400 – 2000 MHz
2000 – 2700 MHz
5100 – 6000 MHz
yes
yes
yes
A
A
A
antenna
AM 80% / 1 kHz
N/A
3 V/m
Electrical fast
transients / burst
IEC/EN
61000-4-4
3
4
capacitive, o/c
±2000 Vp
60 s positive
60 s negative
transients per
coupling mode
burstsof 5/50ns;
2.5 / 5 kHz over 15 ms;
burst period: 300 ms
50 Ω
±i/c, +i/–i
direct
±4000 Vp
Surges
IEC/EN
61000-4-5
5 pos. & 5 neg.
surges per
coupling mode
i/c
±2000 Vp
±2000 Vp
±1000 Vp
12Ω / 9µF
2Ω /18 µF
2Ω /18 µF
A
B
A
3
i/c, +i/–i
+i/–i
1.2 / 50 µs
yes
Conducted
disturbances
IEC/EN
61000-4-6
10 VAC
(140 dBµV)
3
3
i, o, signal wires
-
AM 80% / 1 kHz
0 to 50 Hz
150 Ω
0.15 – 80 MHz
yes
yes
A
A
Power frequency
magnetic field
IEC/EN
61000-4-8
300 A/m
60 s in all 3 axes
1
i = input, o = output, c = case
A = normal operation, no deviation from specs.; B = normal operation, temporary loss of function or deviation from specs possible
2
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Electromagnetic Emissions
All models comply with Class A according to EN 55011/55032 for conducted and radiated emissions.
Legendꢀ ꢀꢀꢀꢀꢀꢀ Peak ꢀꢀꢀꢀꢀꢀ Average
Detectorꢀ
+ - ꢁP
x - AV
Legendꢀ ꢀꢀꢀꢀꢀꢀ Peak ꢀꢀꢀꢀꢀꢀ Average
Detectorꢀ
+
- ꢁP
x - AV
Fig. 15a
Fig. 15b
Typ. conducted emissions (peak/quasipeak and average) at
the input according to EN 55011/32, measured at Vi = 230 V
and Io nom (LR2320-9).
Typ. conducted emissions (peak/quasipeak and average) at
the input according to EN 55011/32, measured at Vi = 230 V
and Io nom (LRP2320-9).
60
60
50
50
ꢀP LIMIT EN 50121-4
ꢀP LIMIT EN ꢁ1000-ꢁ-4
40
40
ꢁ 30 dB (uV/m)
ꢂ 30 dB (uV/m)
30
30
20
10
0
20
10
0
Fig. 16a
Fig. 16b
Typ. radiated emissions accord. to EN 55011/32, antenna 10
m distance, measured at Vi = 230 V and Io nom (LR2320-9).
Typ. radiated emissions accord. to EN 55011/32,antenna10
m distance, measured at Vi = 230 V and Io nom (LRP2320-9).
Table 7: Electromagnetic Emission Tests
Phenomenon
Standard
Test procedure
i nom, Io nom
i nom, Io nom
In operation
Result Class
Harmonic currents
IEC/EN 61000-3-2
V
yes
yes
A
Voltage fluctuation and flicker IEC/EN 61000-3-3
V
Pass
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Immunity to Environmental Conditions
Table 8: Mechanical and climatic stress
Test method
Standard
Test Conditions
Temperature:
Status
Cab Damp heat
steady state
IEC/EN 60068-2-78
MIL-STD-810D section 507.2
40±2 °C
Converter
not operating
Relative humidity:
Duration:
93+2/-3
%
56 days
55°C and 25°C
2
Db
Cyclic damp heat
EN 50155:2017, clause 13.4.7
IEC/EN 60068-2-30
Temperature:
Converter
not operating
test
Cycles (respiration effect)
Duration:
2x 24 h
70°C
Be
Ad
Ka
Dry heat test
steady state
EN 50155:2017, clause 13.4.5
IEC/EN 60068-2-2
Temperature:
Converter
operating
Duration:
6 h
Low temperature
start-up test
EN 50155:2017, clause 13.4.4
IEC/EN 60068-2-1
Temperature, duration:
Performance test:
-40 °C, 2 h
+25 °C
35 ±2 °C
48 h
Converter
not operating
Salt mist test
EN 50155:2017, clause 13.4.10 Temperature:
IEC/EN 60068-2-11
class ST2
Converter
not operating
sodium chloride
(NaCl) solution
Duration:
Fh
Fc
-
Random vibration
broad band (digital
control) & guidance
IEC/EN 60068-2-64
Acceleration spectral density: 0.05 gn2/Hz
Frequency band:
8 – 500 Hz
Converter
operating
Acceleration magnitude:
Test duration:
4.9 gn
rms
1.5 h (0.5 h in each axis)
0.35 mm (10 – 60 Hz)
5 gn = 49 m/s2 (60 - 2000 Hz)
10 – 2000 Hz
Vibration
(sinusoidal)
IEC/EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
Converter
operating
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h in each axis)
Vibration
AREMA Part. 11.5.1
class B, C, D, E, I, J
Displacement amplitude:
0.3” (5 – 10 Hz)
0.1” (5 – 20 Hz)
Converter
operating
Acceleration amplitude:
Frequency (1 Oct/min):
Test duration:
2 gn = 19.6 m/s2 (10 - 200 Hz)
5 – 200 Hz
12 h (4 h in each axis)
50 gn = 490 m/s2
11 ms
Ea
Shock
IEC/EN 60068-2-27
Acceleration amplitude:
Bump duration:
Converter
operating
MIL-STD-810D section 516.3
(half-sinusoidal)
Number of bumps:
Acceleration amplitude:
Bump duration:
18 (3 in each direction)
5.1 gn
-
-
-
Shock
EN 50155:2017 clause 13.4.11,
EN 61373 sect. 10,
Converter
operating
30 ms
class B, body mounted 1
Number of bumps:
Acceleration amplitude:
Bump duration:
18 (3 in each direction)
10 gn = 98 m/s2
11 ms
Mechanical shock
AREMA Part. 11.5.1
class B, C, D, E, I, J
Converter
operating
Number of bumps:
18 (3 in each direction)
2
Simulated long life
testing at increased
random vibration
levels
EN 50155:2017 clause 13.4.11.2, Acceleration spectral density: 0.02 gn /Hz
EN 61373 sect. 8 and 9,
Frequency band:
Acceleration magnitude:
Test duration:
5 – 150 Hz
Converter
operating
class B, body mounted 1
0.8 gn rms
15 h (5 h in each axis)
1
Body mounted = chassis of a railway coach
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Temperatures
Table 9: Temperature specifications, valid for an air pressure of 800 – 1200 hPa (800 – 1200 mbar)
Model
-9
Unit
Characteristics
Conditions
min
- 40
- 40
- 55
typ
max
71 1
95 1,2
85
TA
TC
TS
Ambient temperature
Converter operating
Case temperature
° C
Storage temperature
Not operating
1
See Thermal Considerations.
2
Overtemperature lockout at TC >95 °C. (An NTC resistor on primary and secondary heatsink).
Reliability
Table 10: MTBF and device hours
Ratings at specified
Model
MTBF
case temperature between failures
Accord. to IEC 62380
LR2320-9
TBD
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Mechanical Data
Dimensions in mm. The converters are designed to be inserted into a 19” rack, 160 mm long, according to IEC 60297-3.
7 Tꢉ
ꢂꢇ.ꢂ
ꢆ Tꢉ
ꢂ.27
ꢁꢀ7ꢀ.ꢇ to ꢀ7ꢀ.9ꢃ
ꢆꢇ
ꢌꢈ
ꢐꢌꢇ92
ꢊut ꢊꢋ
ꢏn ꢊꢋ
ꢌeasuring point of
case temperature TC
d
ꢅ
ꢀꢆ2
ꢅ
27.ꢂꢅ
ꢄꢇ
Front plate
Back plate
ꢌain face
ꢀꢄꢅ.ꢆ
ꢆ ꢍ 9ꢇꢎ
2.ꢅ
Screw holes of the
frontplate
ꢉuropean
Projection
Fig. 17
Aluminum case of LR models with heat sink; black finish (EP powder coated);
weight approx. 1.5 kg
Notes:
– d ≥ 15 mm, recommended minimum distance to next part in order to ensure proper air circulation at full output power.
– free air location: the converter should be mounted with fins in a vertical position to achieve maximum airflow through the heat sink.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
7 Tꢀ
ꢆꢉ.ꢆ
9 Tꢀ
ꢆ.27
ꢁꢂ9
ꢃ.ꢂ
ꢋꢊꢉ9ꢆ
ꢎut ꢎꢏ
ꢐn ꢎꢏ
d
ꢊeasuring point of
case temperature TC
27.ꢆꢄ
ꢅꢁ7ꢁ.ꢉ .... ꢁ7ꢁ.9ꢇ
ꢄꢉ
Front plate
Back plate
ꢊain face
ꢁꢈꢄ.ꢂ
ꢂ ꢌ 9ꢉꢍ
2.ꢄ
Screw holes of the
frontplate
ꢀuropean
Projection
ꢊounting slots for chassis or wall mounting
Fig. 18
Aluminum case of LRP models with heat sink; black finish (EP powder coated);
weight approx. 1.8 kg
Notes:
– d ≥ 15 mm, recommended minimum distance to next part in order to ensure proper air circulation at full output power.
– free air location: the converter should be mounted with fins in a vertical position to achieve maximum airflow through the heat sink.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
ꢁ
ꢄ7.2
ꢃꢆ.ꢁ
ꢀ.ꢁ
ꢂꢂꢅ27
ꢂꢂ.ꢆ
±ꢅ.2
ꢂ7.ꢃ
ꢂꢃꢃ.ꢄ
ꢂꢀꢆ
ꢃꢅ
Fig. 19
Option B: Aluminum case S with large cooling plate; black finish (EP powder coated).
Suitable for front mounting.
Total weight approx. 1.5 kg
Note: Long case with option B2, elongated by 60 mm for 220 mm rack depth, is available on request (no LEDs, no test sockets).
7 Tꢊ
ꢂ.27
ꢄ Tꢊ
ꢈꢇ
ꢂꢆ.ꢈ
ꢈ
ꢀꢈꢆ
ꢀꢀ.ꢆ
ꢋꢉꢇ9ꢄ
ꢉ ꢄ
ꢌut ꢌꢍ
ꢎn ꢌꢍ
ꢉeasuring point of
case temperature TC
ꢈ
ꢄ7.2
ꢀ7.ꢂ
ꢀꢂꢂ.ꢄ
ꢀꢅꢆ
ꢁꢀ7ꢀ.ꢇ ... ꢀ7ꢀ.9ꢃ
Fig. 20
Option B1: Aluminum case S with small cooling plate; black finish (EP powder coated).
Suitable for mounting with access from the backside.
Total weight approx. 1.4 kg.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Safety and Installation Instructions
Connector Pin Allocation
The connector pin allocation table defines the electrical potentials and the physical pin positions on the H15 connector. The
protective earth is connected by a leading pin (no. 24), ensuring that it makes contact with the female connector first.
Table 11: Pin allocation
Pin No.
4
Name
Vo1+
Vo1+
Vo1-
Vo1-
Vo2+
Vo2-
R
Function
Positive Output 1
Positive Output 1
Negative Output 1
Negative Output 1
Positive Output 2
Negative Output 2
Output voltage adjust
Inhibit
Sꢀꢁꢁꢁ2b
6
8
ꢂꢁ 2ꢅ 22 ꢀꢃ ꢀꢄ ꢀꢁ
ꢂ2 2ꢃ 2ꢄ 2ꢁ ꢀꢅ ꢀ2
ꢅ
10
12
14
16
18
20
22
ꢃ
ꢄ
i
D
Out OK
Fiꢆtures for retention clips
T
Current share
241
Protection earth PE and case
Fig. 21
26 + 28
30 + 32
1
N~
L~
Neutral line
Phase line
View of module’s male connector
Leading pin (pre-connecting)
Installation Instructions
The 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.
Connection to the system shall be made via the female connector H15; see Accessories. Other installation methods may not meet
the safety requirements.
Pin no. 24 ( ) is connected with the case. For safety reasons it is essential to connect this pin reliably to protective earth.
Notes:
– Pin 18 (inhibit) must be connected to pin 8 / 10 (Vo1–) to enable the converter.
– Do not open the converter, or warranty will be invalidated.
– If the second output is not used, connect it parallel with the main output.
Caution: For operation at DC source voltage above 150 VDC, an external fuse or a circuit breaker at system level must be installed.
Make sure that there is sufficient airflow available for convection cooling and verify it by measuring the case temperature TC, when
the converter is installed and operated in the end-use application; see Thermal Considerations.
Ensure that a converter failure (e.g. an internal short-circuit) does not result in a hazardous condition.
Standards and Approvals
The converters are safety-approved to UL/CSA 62368-1 and IEC/EN 62368-1.
The converters correspond to Class I equipment (case connected to ground). They have been evaluated for:
• Building-in
• Basic insulation between input and case based on 250 VA; basic insulation between outputs and case; double or reinforced
insulation between input and outputs
• Functional insulation between outputs
• Overvoltage category II
• Pollution degree 2 environment
• Max. altitude: 2000 m
• The converters fulfil the requirements of a fire enclosure.
The output voltage is considered as SELV. The converters are subject to manufacturing surveillance in accordance with the
above mentioned safety standards and with ISO 9001:2015, IRIS ISO/TS 22163:2017 certified quality and business management
system. CB-scheme is available on request.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Railway Application and Fire Protection
The converters have been designed by observing the railway standards EN 50155 and EN 50121-4. All boards are coated with a
protective lacquer.
The converters comply with EN 45545-1, EN 45545-2 (2016), if installed in a technical compartment or cabinet.
Protection Degree and Cleaning Liquids
In order to avoid possible damage, any penetration of cleaning fluids has to be prevented, since the power supplies are not
hermetically sealed.
The protection degree is IP 40, provided that the female connector is fitted to the converter.
Isolation and Protective Earth
The electric strength test is performed in the factory as routine test according to EN 50514 and IEC/EN 62368-1 and should not
be repeated in the field. The company will not honor any warranty claims resulting from incorrectly executed electric strength field
tests. The resistance between case and earth pin (<0.1 Ω) is tested as well.
Table 12: Isolation
Characteristics
Input to
Output(s) to
Output 1 to
Output 2
Unit
Case + Output(s) Case and Input
Electric strength test
Factory test 10 s
2.84 1
2.0 1
4.3
3.0
0.5
0.3
kVDC
kVAC
MΩ
AC test voltage equivalent to factory test
Insulation resistance at 500 VDC
>300
≥ 3.5 2
>300
≥ 4.5
>300
---
Creepage distances
mm
1
According to EN 50514 and IEC/EN 62368-1, subassemblies connecting input to output are pre-tested with 5.6 kVDC or 4 kVAC.
Input to outputs: 7.0 mm
2
Description of Options
F0, F2 Fuse Options (not for DC input)
The converters exhibit an AC-rated fuse in the input phase line (L, pins 30 and 32). For operation with DC input, choose option F0
(no fuse) and provide an external fuse or circuit breaker in series to L. This is also recommended in EN 50155.
Option F0 means that there is no fuse incorporated.
Option F2 (AC-rated fuses in both input lines) is required for operation with AC in several countries, but especially if the converter
is operated between phases, or if the neutral line cannot be allocated (e.g., for German “Schuko” connectors).
Table 3 shows the type of the fuse.
B, B1 Cooling Plates
Where a cooling surface is available, we recommend the use of a cooling plate instead of the standard heat sink. The mounting
system should ensure that the maximum case temperature TC max is not exceeded. The cooling capacity is calculated by (η see
Model Selection):
(100% – η)
PLoss
=
–––––––––– • Vo • Io
η
For the dimensions of the cooling plates; see Mechanical Data.
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Accessories
A variety of electrical and mechanical accessories are available including:
– Front panels for 19” DIN-rack: Schroff or Intermas, 12 or 16TE /3U; see fig. 22.
– Mating H15 connectors with screw, solder, faston, or press-fit terminal; see fig. 23.
– Coding clips for connector coding HZZ00202
– Pair of connector retention clips HZZ01209-G; see fig.25
– Connector retention brackets HZZ01216-G (CRB-HKMS)
– Cable hood for H15 connectors:
- HZZ00141-G, screw version
- HZZ00142-G, use with retention brackets HZZ01218-G
- HZZ00143-G, metallic version providing fire protection
– Cage clamp adapter HZZ00144-G; see fig. 26.
– DIN-rail mounting assembly HZZ0615-G (DMB-K/S)
– Wall-mounting plate K02 (HZZ01213-G) for models with option B1
– Additional external input and output filters
– Different battery sensors S-KSMH... for using the converter as a battery charger. Different cell characteristics can be selected;
see fig. 30, table 12, and Battery Charging/Temperature Sensors.
For additional accessory product information, see the accessory data sheets listed with each product series or individual
model at our web site.
Fig. 23
Different mating connectors
Fig. 22
Fig.24
Different front panels
Connector retention clips to fasten the H15 connector to the
rear plate; see fig.24. HZZ01209-G consists of 2 clips.
2ꢀ to ꢁꢀ Ncm
Fig. 25
Fig. 26
Connector retention brackets HZZ01216-G (CRB-HKMS)
Cage clamp adapter HZZ00144-G
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LR Series
240 – 300 Watt AC-DC and DC-DC Converters
Fig. 27
Fig. 28
Different cable hoods
Chassis- or wall-mounting plate HZZ01213-G (Mounting
plate K02)
European
Projection
26 (1.02")
09125a
L
56 (2.2")
adhesive tape
L = 2 m (standard length)
other cable lengths on request
Fig. 29
Fig. 30
Battery temperature sensor
DIN-rail mounting assembly HZZ00615-G (DMB-K/S)
Table 13: Battery temperature sensors
Battery
voltage
nom. [V]
Sensor type
Cell
Cell temp. Cable
voltage coefficient length
[V]
[mV/K]
–3.0
–3.5
–3.0
–3.5
–3.5
–3.5
–3.5
–3.0
–3.5
[m]
2
12
12
24
24
24
24
24
48
48
S-KSMH12-2.27-30-2
S-KSMH12-2.27-35-2
S-KSMH24-2.27-30-2
S-KSMH24-2.27-35-2
S-KSMH24-2.31-35-0
S-KSMH24-2.31-35-2
S-KSMH24-2.35-35-2
S-KSMH48-2.27-30-2
S-KSMH48-2-27-35-2
2.27
2.27
2.27
2.27
2.31
2.31
2.35
2.27
2.27
2
2
2
4.5
2
2
2
2
Note: Other temperature coefficients and cable lengths are available on request.
NUCLEAR AND MEDICAL APPLICATIONS - These products are not designed or intended for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems.
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.
tech.support@psbel.com
belfuse.com/power-solutions
BCD.00580 Rev AE, 27-Jun-2019
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