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Newmar PM-48-18

PM-48-18 Newmar DC Power Supply

DC Power Module, 54.4/55.1 V Out, 120/230V IN, 18 AMP

The PM-48-18 is a 1000 Watt DC Power Supply from Newmar. Supplies DC Voltage and Current to test, design, and troubleshoot electric and electronic circuits. Applications include Burn In, QA, ATE, Research, Design, and Education to name a few.

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NIST Calibration Pricing - $115.00

Newmar PM-48-18 Features:

  • 48 VDC, 24 VDC or 12 VDC output; positive, negative or floating ground
  • 115 or 230 VAC, 50-60 Hz rectifier module input
  • 560 or 1000 watts per rectifier module output (approx.)
  • Parallel or N + 1 redundant configuration - up to 6 rectifiers may be paralleled
  • Power supply or battery charger operation (DC UPS system)
  • Battery charging function options: three-step charging, gel/lead-acid switch, equalization and battery temperature compensation
  • Remote rectifier shutdown control option via TTL signal
  • Form C alarm contacts activate on any rectifier output loss condition
  • 19" or 23", flush or 6" forward rackmount


  • Output fuse for reverse polarity
  • Current limit and fold back
  • Input circuit breaker on rectifier module front panel
  • Automatic high temp. output power reduction starting @ 50 C ambient and full load
  • Forced air cooling with filter provided

The Newmar PM-48-18 Modules function as either stand-alone power supplies or as chargers for back-up battery strings in 48, 24 or 12 VDC systems; positive, negative or floating ground. The rectifiers may be employed singly or in combination, enabling the installer to scale the power system from 500 to 6,000 watts per rack. Rectifier Modules may be paralleled for N + 1 redundancy and alarm contacts allow local or remote monitoring. An optional DC quick connect kit allows easy replacement of the rectifiers without power system shutdown. All these features combine to provide tremendous flexibility in a telecom power system.