40W Rail EN50155 DC/DC Converter – UFED40W


40W Rail EN50155 DC/DC Converter – UFED40W Series

The UFED40W series are rail approved EN50155 dc/dc converters

They have a 4:1 input range with no minimum load requirements and a range of protection circuits on board.

Input voltage range is from 9.5 to 36V; 18 to 75V or 43 to 160V which covers most rail input voltages. They are available with a range of single output voltages from 3.3V to 24V, with dual output versions also of 12V,15V and 24V

These units are designed for chassis mounting and are fitted with screw terminals for both input and output.


  • No Minimum Load Required
  • 3000Vdc Input to Output Isolation
  • Application Of Chassis-Mount DC/DC Converters
  • Screw Terminals for Input and Output Connections
  • Internal Input Fuse Protection
  • Internal Output Led Indicator
  • Meet EN55022 Class B
  • Safety Meets IEC/UL/EN 62368-1
  • Complies with EN50155 And EN45545-2 Railway Standard

Model Information

Model NoInput VoltageOutput VoltageCurrent Output
UFED40-24S3P3W9.5V – 36V3.3V10.00A
UFED40-24S05W9.5V – 36V5.0V8.00A
UFED40-24S12W9.5V – 36V12V3.33A
UFED40-24S15W9.5V – 36V15V2.66A
UFED40-24S24W9.5V – 36V24V1.66A
UFED40-24D12W9.5V – 36V+/- 12V+/- 1.66A
UFED40-24D15W9.5V – 36V+/- 15V+/- 1.33A
UFED40-24D24W9.5V – 36V+/- 24V+/- 0.833A
UFED40-48S3P3W18V – 75V3.3V10.00A
UFED40-48S05W18V – 75V5.0V8.00A
UFED40-48S12W18V – 75V12V3.33A
UFED40-48S15W18V – 75V15V2.66A
UFED40-48S24W18V – 75V24V1.66A
UFED40-48D12W18V – 75V+/- 12V+/- 1.66A
UFED40-48D15W18V – 75V+/- 15V+/- 1.33A
UFED40-48D24W18V – 75V+/- 24V+/- 0.833A
UFED40-110S3P3W43V – 160V3.3V10.00A
UFED40-110S05W43V – 160V5.0V8.00A
UFED40-110S12W43V – 160V12V3.33A
UFED40-110S15W43V – 160V15V2.66A
UFED40-110S24W43V – 160V24V1.66A
UFED40-110D12W43V – 160V+/- 12V+/- 1.66A
UFED40-110D15W43V – 160V+/- 15V+/- 1.33A
UFED40-110D24W43V – 160V+/- 24V+/- 0.833A


P-Duke Power

P-Duke Power started in 1992, have concentrated their design efforts on dc/dc converters and associated products. They have a wide range of products for general industrial applications but also specific ranges for Medical and Rail requirements meeting all relevant safety standards. Our product specialists are happy to assist with product selection and offer help throughout the design cycle.

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UFED40W Datasheet