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Quick Details

  • Place of Origin: China (Mainland)
  • Brand Name: Hengfu
  • Model Number: HF50W-SDR
  • Output Power: 1 - 50W
  • Output Type: Single
  • Input Voltage: 85 - 264VAC
  • Output Voltage: 12 - 48V all available
  • Output Current: 1 - 4.2A all available
  • Dimensions: 45 x 89.2 x 75.2mm

Packaging & Delivery

Packaging Details: 0.32kgs/pcs for 13.8V Din Rail Power Supply
Delivery Detail: 2-3 weeks for 13.8V Din Rail Power Supply


All 105C capacitors
Japanese brand for key components
DC OK signal
CE approved
Factory 20 years experience

13.8V  Din Rail Power Supply

Product features:
1) Universal AC input / full range
2) Installed on DIN rail TS35 / 7.5 / 15
3) High reliability, compact design
4) DC OK signal output

5) Protection: overload/ over voltage/ short circuit
6) 100% full load burn-in test
7) Built in EMI filter
8) 5 years limited warranty

9) Dimensions: 45 x 89.2 x 75.2mm


AC input voltage range

85~264VAC (120~370VDC)

Input current1.8A
Input frequency47~63Hz
Inrush currentcold start, 20A/115V, 40A/230V
Input leakage current< 1mA/230VAC
Line regulation (full load)± 0.5%
Output voltage adjust range± 10%
Output overload protection105~150%, hiccup mode, auto recovery
Output over voltage protection115~150%, shut off, re-power on to recover
Withstand voltage

I/P-O/P: 3KVAC/1min, I/P-F/G: 1.5KVAC/1min, O/P-F/G: 0.5KVAC/1min

Rise time50ms@full load (typical)
Hold up time20ms@full load (typical)
Operating temperature-10°C ~+50°C
Storage temperature-20°C ~+85°C
MTBF> 100,000 hours
Safety standardsGB4943, UL60950, EN60950
EMC standardsGB9254, EN55022 class B, EN55024, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11
Vibration10~150Hz, 2G 10min/1cycle, 30min each along X, Y, Z axes
Cooling methodconvection


Model No.DC Output







HF50W-SDR-1212V 4.2A50.4W0.5% ± 1% 120mV 80%
HF50W-SDR-24 24V2.1A50.4W0.5% ± 1% 150mV 80%
HF50W-SDR-48 48V1A48W0.5% ± 1% 150mV 86%



Mechanical drawing of 13.8V  Din Rail Power Supply:



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China (Mainland) | Manufacturer, Trading Company
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