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

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.

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

Options

• 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)