Mornsun URB1D & URF1D series

Railway DC/DC converter with ultra-wide input voltage

The URB1D DC/DC converters from Mornsun offer a 40-160VDC ultra-wide input voltage and a (reinforced) insulation of 2250VDC. With the EN60950/EN50155 approvals they are all suitable for 72V, 96V and 110V railway vehicle electronic equipment such as railway monitoring equipment, air conditioner controller and information displays, etc.

These series provide an operating temperature of -40°C to +85°C and multiple protections (input under-voltage and output short-circuit, over-current, over-voltage protections). EMI of the three series meets EN50121-3-2 without external components. Besides, the converters come in 2*1 inches international standard package with available two pin-out positions (approaching to the inner or outer of the power converter) and excellent compatibility. A2S (Chassis mounting) or A4S (DIN-Rail mounting) package are also available, which have reverse voltage protection.


The URF1D series provides an insulation voltage of 3000VDC, output voltages of 5, 12, 15, 24VDC and a 150W (max.)


  • Ultra wide voltage range: 40 to 160VDC
  • Enhanced (reinforced) isolation: 2250VDC
  • Available output voltages: 3.3, 5, 12, 15 & 24VDC
  • Operating temperature: -40°C to +85°C
  • Protections: input under-voltage protection, output short circuit, over-current/voltage protection
  • Low ripple & noise of 100mVp-p (max.)
  • International standard pin-out
  • Reverse voltage protection available with chassis & DIN-rail mounting
  • Meets railway standard EN50155/EN60950
  • EMI meets EN50121-3-2, without external components


  • Railway monitoring equipment
  • HVAC controllers
  • Sliding plug door control system
  • Information displays

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