K Series
150 Watt DC-DC and AC-DC Converters
Features
RoHS lead-free-solder and lead-solder-exempted
products available
5 year warranty for RoHS compliant products with an
extended temperature range
Compliant with EN 50155, EN 50121-3-2
Fire & smoke according to EN 45545 and NF-F16
(ver. V108 or later; not models with H15-S4 connector)
Class I equipment
Extremely wide input voltage ranges from 8 to 385 VDC,
and 85 to 264 VAC, 47 to 440 Hz
Input over- and undervoltage lockout
Adjustable output voltage with remote on/off
1 or 2 outputs: SELV, no load, overload & short-circuit proof
Rectangular current limiting characteristic
PCBs protected by lacquer
Very high reliability
Safety-approved to the latest edition of IEC/EN 60950-1
and UL/CSA 60950-1
111
4.4"
3 U
80
168
3.2"
6.6"
16 TE
Table of Contents
Description........................................................................................2 Electromagnetic Compatibility (EMC) .............................................17
Model Selection ................................................................................2 Immunity to Environmental Conditions ...........................................19
Functional Description ......................................................................5 Mechanical Data .............................................................................20
Electrical Input Data .........................................................................6 Safety and Installation Instructions .................................................22
Electrical Output Data.......................................................................9 Description of Options ....................................................................26
Auxiliary Functions .........................................................................13 Accessories ....................................................................................34
belfuse.com/power-solutions
BCD20002-G Rev AG, 19-Jul-2018K Series
150 W DC-DC and AC-DC Converters
Description
The K Series of DC-DC and AC-DC converters represents a broad and flexible range of power supplies for use in advanced
electronic systems. Features include high efficiency, high reliability, low output voltage noise and excellent dynamic response to
load/line changes. LK models can be powered by DC or AC with a wide-input frequency range (without PFC).
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. Certain types include an inrush current limiter preventing circuit
breakers and fuses from tripping at switch-on.
All outputs are open- and short-circuit proof, and are protected against overvoltages by means of built-in suppressor diodes. The
output can be inhibited by a logic signal applied to pin 18 (i). The inhibit function is not used, pin 18 must be connected with pin
14 to enable the outputs.
LED indicators display the status of the converter and allow for visual monitoring of the system at any time.
Full input-to-output, input-to-case, output-to-case, and output to output isolation is provided. The converters are designed, built,
and safety-approved to the international safety standards IEC/EN 60950-1. They are particulary suitable for railway applications
and comply with EN 50155 and EN 50121-3-2.
The case design allows 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 T exceeds the limit. The
C
outputs are automatically re-enabled, when the temperature drops below the limit.
Various options are available to adapt the converters to individual applications.
The converters may either be plugged into a 19 DIN-rack system according to IEC 60297-3, or be chassis mounted.
Important: For applications requiring compliance with IEC/EN 61000-3-2 (harmonic distortion), please use our LK4000 or LK5000
Series with incorporated power factor correction (PFC).
Model Selection
Non-standard input/output configurations or special customer adaptations are available on request.
Table 1a: Models AK
1
Output 1 Output 2 Input Voltage Efficiency Options
V I V I V V
o nom o nom o nom o nom i min i max min
[VDC] [A] [VDC] [A] 8 - 35 VDC [%]
5.1 20 - - AK1001-9RG 79
12 10 - - AK1301-9RG 81
-7 , P, D, V , T, B, B1, non-G
15 8 - - AK1501-9RG 83
24 5 - - AK1601-9RG 84.5
3
12 5 12 5 AK2320-9RG 79
3
15 4 15 4 AK2540-9RG 80.5 -7 , P, D, T, B, B1, non-G
3
24 2.5 24 2.5 AK2660-9RG 80.5
1
Min. efficiency at V , I and T = 25 C. Typical values are approximately 2% better.
i nom o nom A
2
Option V for models with 5.1 V outputs; excludes option D
3
Second output semi-regulated
4
AK, BK, FK models are available as -7 or -9, but without opt. E. The other models CK, DK, EK, LK are available as -7 or -9E (but not -7E).
NFND: Not for new designs. Preferred for new designs
tech.support@psbel.com
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BCD20002-G Rev AG, 19-Jul-2018
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