40W Rail EN50155 DC/DC Converter – QAE40U


40W Rail EN50155 DC/DC Converter – QAE40U Series

The QAE40U series are rail approved EN50155 dc/dc converters

They have a 12:1 input range with no minimum load requirements and a range of protection circuits on board.

Input voltage range is from 14 to 160V or 9 to 75V which covers most rail input voltages. They are available with a range of single output voltages from 5V to 53V

These units come in a quarter brick footprint; they are also available with added heat sinks


  • 40W Output Power
  • 12:1 Input Range: 9-75, 14-160 Vdc
  • Output Voltage: 5, 12, 15, 24, 28, 48, 53Vdc
  • Up To 3000 VAC Isolation Voltage
  • Enhanced Hold-Up Function For S2, S3, C2 Of EN50155
  • Programmable Under-Voltage Lockout
  • Standard 1/4 Brick Package
  • Approved To EN50155, EN45545-2, And IEC/EN/UL 62368-1 Standards

Model Information

Model NoInput VoltageOutput VoltageCurrent Output
QAE40-72S05U14V – 160V5V8.00A
QAE40-72S12U14V – 160V12V3.33A
QAE40-72S15U14V – 160V15V2.67A
QAE40-72S24U14V – 160V24V1.67A
QAE40-72S28U14V – 160V28V1.43A
QAE40-72S48U14V – 160V48V0.83A
QAE40-72S53U14V – 160V53V0.75A


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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QAE40U Datasheet