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DC/AC Power Inverter (Railway – Rolling Stock)

Espey Mfg. designed and manufactures a line of Industrial DC/AC Inverter power conversion products for railroad rolling stock and off-highway vehicles. These ruggedized switched-mode power supplies are customized for unique applications including braking, and signaling control, auxiliary traction support and voltage conditioning for distribution as well as over-current/over-voltage protection of IGBT device for traction applications.

Electrical Specifications

  • Input: Dual 19 – 85 VDC
  • Output: Dual 100Vrms (+/- 5V), 5AMP 25kHz (+/- 10%) SQUARE WAVE

Mechanical Specifications

  • Natural convection, air-cooled
  • Size: 7.00L x 7.50W x 8.00D
  • Shock: Half sine, .01 second long, 10G operational
  • Vibration: 3.0G, 1Hz to 300Hz
  • Contaminants: Unit operates in a transportation environment, contaminants may include silica, carbon, coal dust, ozone, copper dust, sulphur dioxide, hydrogen sulfide, salt air, iron dust, carbon monoxide, and nitrous oxides.


  • IGBT Gate Driver Power Inverter
  • Dual isolated inputs and outputs
  • Over-current/Over-voltage protection of IGBT device for traction application
  • Ruggedized construction for transportation application
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