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CAD DrawingCAD Drawing 2CAD Drawing 3115-12-20A Power Supply
This super-rugged DC power supply is ideal for powering 12-volt communication and navigation equipment onboard commercial vessels where reliability is essential. The proven linear circuit design provides pure noise-free output and a long service life.
Features:
- Excellent Regulation and Ripple Spec (output voltage maintained within 1% under all rated line and load conditions)
- Polyurethane conformal coated PC board and corrosion-resistant heavy-duty aluminum case with integral shock mounts assure survival in hostile environments
- The heat generated by semi-conductors is extracted and dissipated by large heat sink fins for cool operation
- Protection: overvoltage, current limit; (set @ 105% of intermittent rating), thermal overload, and input/output fusing
- Thermally activated cooling fan on “CD” units
Specifications:
- Nominal Input/VAC: 115/230
- Maximum Input Current @115: 5.5
- Maximum Input Current @230: 2.5
- Output Amperage (Intermittent): 20
- Output Amperage (Continuous): 8
- Weight: 20 lbs. / 9.1 kg
Case Size:
- H x W x D (inch): 5.7” x 4.8” x 16.3”
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 degrees C, Derate linearly from 100% @ 40 degrees C to 50% @ 50 degrees C thermal shutdown @ 85 degrees C case temperature
Duty Cycle:
- Intermittent: 20 minutes max on time, 20% duty
- Continuous: 24 hours/day 100% Duty
Options:
- Modify for use as a battery charger
- The output voltage is adjusted (see Output Voltage for range)
- Transfer relay for back-up battery in event of power failure (ERC option)
Output Voltage:
- 13.6 VDC (internally adjustable 12.6-14.5 VDC)
- Ripple: 40mV P-P (@ 110-125 / 220-250 VAC input)
- 1% Line and Load (@ 110-125 / 220-250 VAC input)
Mechanical:
- Powder-coated aluminum heat sink case
- Front panel terminal block
- Heavy-duty mounting flange
- Conformal-coated PC board
Manufacturer : Newmar Power
Manufacturer Part No : 115-12-20A
