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DC/DC Power Converter (Railway – Rolling Stock)

Espey developed this power supply for a major locomotive manufacturer. The high reliability power supply was designed and tested for extreme locomotive environmental conditions. This Power supply is capable of parallel operation with like units in a redundant fashion. This power Converter operates from a very wide input ranging from 25 to 85 Vdc.

Electrical Specifications

  • Input Voltage: 25 – 85 Vdc
  • Output Voltage: +15 Vdc
  • Output Current: 0.5 – 20 Amps
  • Output Power: 300 watts continuous
  • Regulation, Line & Load: ±5%
  • Efficiency: 80% minimum

Mechanical Specifications

  • Weight: 10 lbs. max
  • Size: 3.6″ X 11.5″ X 9.25″
  • Modular Aluminum Chassis

Features

  • Output current limit protection
  • 20% design margin on power and current ratings
  • Soft-start with battery voltage application
  • Qualified to locomotive environment extremes
  • Qualified for EMI
  • High Reliability Design greater than 290,000 hrs. MTBF

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