20W Rail EN50155 DC/DC Converter – URED20W


20W Rail EN50155 DC/DC Converter – URED20W Series

The URED20W 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 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 15V, with dual output versions also of 12V and 15V

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


  • No Minimum Load Required
  • 2250Vdc 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
URED20-24S3P3W9V -36V3.3V4.50A
URED20-24S05W9V -36V5.0V4.00A
URED20-24S12W9V -36V12V1.67A
URED20-24S15W9V -36V15V1.33A
URED20-24D12W9V -36V+/- 12V+/- 0.833A
URED20-24D15W9V -36V+/- 15V+/- 0.667A
URED20-48S3P3W18V – 75V3.3V4.50A
URED20-48S05W18V – 75V5.0V4.00A
URED20-48S12W18V – 75V12V1.67A
URED20-48S15W18V – 75V15V1.33A
URED20-48D12W18V – 75V+/- 12V+/- 0.833A
URED20-48D15W18V – 75V+/- 15V+/- 0.667A
URED20-110S3P3W43V – 160V3.3V4.50A
URED20-110S05W43V – 160V5.0V4.00A
URED20-110S12W43V – 160V12V1.67A
URED20-110S15W43V – 160V15V1.33A
URED20-110D12W43V – 160V+/- 12V+/- 0.833A
URED20-110D15W43V – 160V+/- 15V+/- 0.667A


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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URED20W Datasheet