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Boatersland Marine > Electrical > Power Supplies > Newmar 115-12-20A Power Supply 115/230VAC To 12VDC At 20 Amps
  Newmar 115-12-20A Power Supply 115/230VAC To 12VDC At 20 Amps
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Newmar 115-12-20A Power Supply 115/230VAC To 12VDC At 20 Amps

Item #: NEW115-12-20A




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In Stock - Ships the next business day.
No restocking fees on return.
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Heavy Duty Series

  • Designed for powering 12 VDC communication/navigation equipment aboard commercial vessels where reliability is the primary consideration.
  • Input voltage 115 or 230 VAC selected by slide switch on the front panel.
  • Excellent Regulation and Ripple Spec: Output voltage maintained within 1% under all line and load conditions within rating; Ripple is less than 40 mV P-P. (12 volt) or 70 mV P-P (24-volt)
  • Polyurethane conformal coated PC board and corrosion resistant heavy duty aluminum case with integral shock mounts assures survival in hostile environments
  • Heat generated by semi-conductors is extracted and dissipated by large heat sink fins that maximize air contact for cool operation and long life of components.
  • Supply and Load Circuit Protection: over voltage, current limit; (set @ 105% of intermittent rating), thermal overload and input/output fusing.
  • Thermally activated cooling fan on ?CD? units.
Nominal Output Amperage Case Size (P-3) Inches Weight
Input VAC Intermittent Continuous H W D Lbs.
115 230 20 8 5.7 4.8 16.3 20

Output Voltage

12 V Models:
13.6 VDC (Internally adjustable 12.6-14.5 VDC)
Ripple: 40mV P-P ( @ 110-125 / 220-250 VAC input)

Input Range
105-125/210-250 VAC (selectable), 50-60 Hz
Derate to 50% output below 110 and 220 VAC

Operating Temperature

Standard Units
0-50?C, Derate Linearly From 100% @ 40?C
To 50% @ 50?C Thermal shutdown @ 85?C Case temperature

C.D. Units
0-65?C, Derate Linearly From 100% @ 50?C
To 50% @ 65?C Thermal Shutdown @ 85?C Case temperature

Duty Cycle
Intermittent: 20 minutes max on time, 20% duty
Continuous: 24 Hours/Day 100% Duty


  • Use as a Battery Charger
  • Output voltage adjust (see Output Voltage for range)
  • Transfer relay for back up battery in event of power failure (ERC option)

Did you Know?

ALL products we sell are factory new and come with the full Manufacturers Warranty!

Newmar 115-12-20A Power Supply 115/230VAC To 12VDC At 20 Amps - Power Supplies