Description:
Newmar 115-12-20a Power Supply 115/230vac To 12vdc @ 20 AmpsHeavy Duty SeriesFeatures: Designed for powering 12 and 24 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: overvoltage, current limit; (set @ 105% of intermittent rating), thermal overload and input/output fusing. Thermally activated cooling fan on "CD" units. Specifications: 12 Volt Output 115-12-8 Input 115/230 VAC Output 8 amp intermittent 5 amps continuous Dimensions 6.0" h x 4.6" w x 8.5" d weight 10lbs 115-12-20A Input 115/230 VAC Output 20 amp intermittent 8 amps continuous Dimensions 5.7" h x 4.8" w x 16.3" d weight 20lbs 115-12-35CD Input 115/230 VAC Output 35 amp intermittent 35 amps continuous Dimensions 6.5" h x 9.5" w x 14.0" d Weight 32lbs 24-Volt Output 115-24-10 Input 115/230 VAC Output 10 amp intermittent 4 amps continuous Dimensions 5.7" h x 4.8" w x 16.3" d weight 20lbs 115-24-18CD Input 115/230 VAC Output 18 amp intermittent 18 amps continuous Dimensions 6.5" h x 9.5" w x 14.0" d Weight 32lb 115-24-35CD Input 115/230 VAC Output 35 amp intermittent 35 amps continuous Dimensions 6.5" h x 13.0" w x 18.75" d Weight 60lbs 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) 24 V Models: 24.5 VDC (Internally adjustable 21-27.5 VDC) Ripple: 70mV P-P ( @ 110-125 / 220-250 VAC input) Regulation All Models: 1% Line and Load (@ 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 0-50C, Derate Linearly From 100% @ 40C To 50% @ 50C Thermal shutdown @ 85C Case temperature Duty Cycle Intermittent: 20 minutes max on time, 20% duty Continuous: 24 Hours/Day 100% Duty
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