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3rd Rail Aux Power Supply

DSPM’s Auxiliary Power Supply is a compact wall-mounted
inverter that is designed to generate a pure sine wave, connecting
to the subway track system. The input DC voltage can be between
300V to 1500V DC.

Three Phase and Single Phase  1KW - 8KW

Power Levels:

8.0, 16.0, 24.0, and 32.0KW

Input Voltage:

300 to 2000VDC

120, 240, 277, 480, 208/120, 208, 480/277, 480AC

Output Voltage:

120, 240, 277, 480, 208/120, 480/277VAC

The DC to AC Converter maintains efficient AC Emergency Power to operate all types of loads,
providing superior dependability and security to commercial/industrial environments in a small
commercial/industrial environments in an outdoor environment.

Up to 8KW

350 to 900VDC, nominal 600VDC

  • 120V, 240V, 277V, 480V, 120/240, 120/208, 277/480 or 277/480VAC 92% efficient at 100%

linear load

  • Meets NF PA 101, NFPA 70, NEC and OSHAstandards
  • Cities of Chicago and New York approved
  • Complies with the Buy American Act

• Provides overload, surge and undercurrent protection using DSP/PWM technology and DSPM
Watchdog Software to protect system performance and reliability
• Surge protection against load surges as defined in ANSI/IEEE C62.45 category A and B

Input Under/Over Voltage

Output Over Voltage

Output Over Load

Over Temperature

Smart Cooling system

Off-site Monitoring system

• Modular design enables flexible installation


  • • Modular design and small footprint allow easy installation in an outdoor environment
    • Phone assisted factory start-up standard for all systems
    • Extended warranty available

• 1-Year full warranty on system electronics
• System 1-year on-site warranty labor with
DSPM phone assisted start-up
• 5-Year powertrain warranty
• Maintenance contracts available

Single Line Diagram

ordering information

Choose the bold face catalog nomenclature that best suites your needs.
Write them on the appropriate line. Order accessories as separate catalog number.

(3rd Rail, 8KVA, 600VDC/208/120Y, Output Circuit Breaker, 2 each, 20 Amp, 1 Pole)