Newmar 24-12-3 DC Converter

The Newmar Power 24-12-3 DC Converter converts 17-32 VDC input to a 12 VDC negative ground output for communication and navigation equipment. It is intended for negative ground systems; positive ground applications require the Isolated Series noted by the manufacturer.

• Model: 24-12-3
• Input voltage: 17-32 VDC
• Output voltage: 13.6 VDC
• Output is internally adjustable from 12.6 to 14.5 VDC
• Output amps: 3 intermittent, 3 continuous
• Regulation: 1% line/load
• Ripple: 150 mV P-P maximum
• Switching frequency: 40 kHz
• Efficiency: 85% typical
• Isolation: output/chassis and input/chassis, 250 VDC
• Case size: 3.5 x 3.5 x 1.75 inches (8.9 x 8.9 x 4.5 centimeters)
• Weight: 1 lb. (.45 kg)
• Idle current: less than 100 mA, including power ON light
• Operating temperature: 0-50 degrees C, derated linearly from 100% at 40 degrees C to 50% at 50 degrees C
• Thermal shutdown at 70 degrees C case temperature
• Model 24-12-3 full output temperature range: -25 degrees to +30 degrees C
• Model 24-12-3 derating: 100% at +30 degrees C to 45% at +50 degrees C
• Intermittent duty rating: 20 minutes maximum on time, 20% duty
• 24-12-3 intermittent note: 2-minute maximum on time
• Current limit set at approximately 105% of intermittent rating
• Continuous duty rating: 24 hours, 100% duty
• Protection circuits include current limiting, automatic thermal shutdown, short circuit protection, reverse polarity protection, and overvoltage protection
• Polyurethane conformal coating on PC boards
• Corrosion-resistant anodized aluminum case with heavy-duty shock mounts
• Powder-coated aluminum heat sink case
• Front panel terminal block
• Heavy-duty mounting flange
• Conformal coated PC board
• Carries CE mark
• Optional use as a battery charger or for parallel redundant operation requires derating to continuous duty rating and factory contact