NewMar 115-24-18CD 24V DC Linear Power Supply 18A Intermittent Marine

The NewMar 115-24-18CD is a super-rugged 24-volt DC linear power supply designed for powering communication and navigation equipment on commercial vessels where reliability is critical. This proven linear circuit design delivers pure, noise-free output with exceptional long-term durability in harsh marine environments.

Key Features:

• Linear circuit design provides clean, noise-free DC power ideal for sensitive electronics
• Excellent voltage regulation maintained within 1% under all rated line and load conditions
• Polyurethane conformal-coated PC board protects against moisture and corrosion
• Heavy-duty powder-coated aluminum heat sink case with integral shock mounts
• Large heat sink fins extract and dissipate heat for cool, reliable operation
• Thermally-activated cooling fan ensures optimal performance under load
• Comprehensive protection: overvoltage, current limiting (105% of intermittent rating), thermal overload, and input/output fusing
• Front panel terminal block for easy installation
• Selectable 115/230 VAC input voltage

Technical Specifications:

• Output Voltage: 24.5 VDC (internally adjustable 21-27.5 VDC)
• Continuous Output: 4 amps (24 hours/day, 100% duty cycle)
• Intermittent Output: 10 amps (20 minutes max, 20% duty cycle)
• Input Voltage: 105-125/210-250 VAC selectable, 50-60 Hz
• Ripple: 70mV peak-to-peak maximum
• Line and Load Regulation: 1%
• Operating Temperature: 0-65°C (derate linearly from 100% at 50°C to 50% at 65°C)
• Thermal shutdown at 85°C case temperature
• Dimensions: 5.7" H x 4.8" W x 16.3" D
• Weight: 20 lbs

Optional Configurations:

• Can be modified for use as a battery charger
• Transfer relay available for automatic back-up battery switching (ERC option)
• Custom output voltage adjustment within specified range

This power supply is built to survive hostile marine environments with its corrosion-resistant construction and conformal coating. The linear design ensures zero switching noise interference with VHF radios, GPS, and other sensitive navigation equipment.