Heavy Duty 24VDC and 48VDC Power Supplies

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  • EIA 19” and 23” rack mount ears, 2 RU
  • Heavy duty powder coated steel enclosure
  • Dual, heavy duty, high cycle life, front mounted breakers
  • Breakers meet Mil-STD-202 for environmental durability
  • 2000VAC I/O Isolation
  • Built-in short circuit, overload, over-voltage and over-temperature protection
  • Auto switching dual input terminal for redundant power input sources
  • AC input active surge current limiting
  • Convenient front mounted LED status indicators
  • Digital LED ammeter displays output amps
  • Commercial grade terminal blocks
  • 3 output terminal connections
  • Alarm contact on back for system monitoring
  • Wide operating thermal range
  • Made in USA

The RLH 500 Series AC/DC rack mount power supply is an isolated DC power source designed to provide constant power to telecom and industrial equipment. There are 24VDC and 48VDC output models available, rated up to 21A. They feature industrial grade recessed front panel input power circuit breakers and a digital ammeter for monitoring the output current.

The converters have dual inputs with automatic internal switching for connecting redundant power input sources, and three position output terminals for connecting multiple devices. Each input is protected by heavy duty circuit breakers.

The Series 500 AC/DC power supply is an EIA 19/23 inch 2RU rack mountable enclosure, with both front or telco center style rack ear mounting.

It is recommended that an AC power breaker placed before the AC/DC power supply, rated at 1.5 times (min.) the current of the power supply model being used. Please refer to the product data sheet for additional information.


Steel, powder coated

H 3.5 x W 17.75 x D 11.5 (H 89mm x W 451mm x D 292mm)
Not Including Rack Ears

Mounting Style:
Standard EIA 19" or 23" Rack Mount, 2RU

3-year warranty against defects in material and workmanship


Download the User Guide


Please submit a quote request or contact your RLH sales representative for pricing and delivery information.