Newmar Power 115-24-18CD 24V DC Power Supply for Commercial Marine Equipment

115-24-18CD Power Supply

This super-rugged DC power supply is ideal for powering 24-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): 10
• Output Amperage (Continuous): 4
• 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

C.D. Units - 0-65 degrees C, Derate linearly from 100% @ 50 degrees C to 50% @ 65 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:

• 24.5 VDC (Internally adjustable 21-27.5 VDC)
• Ripple: 70mV 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

The Newmar Power 115-24-18CD is a robust and reliable 24-volt DC power supply specifically designed for demanding marine communication and navigation systems. Its linear circuit architecture ensures pure, noise-free output, critical for sensitive onboard electronics, while its durable construction makes it ideal for harsh maritime environments. The unit features a corrosion-resistant heavy-duty aluminum case with integral shock mounts, providing excellent protection against the elements and mechanical stress. The polyurethane conformal coating on the circuit board further enhances its resistance to corrosion, ensuring long-term operational stability in challenging conditions. Efficient heat dissipation is achieved through large heat sink fins, allowing the power supply to operate coolly even during extended duty cycles. The power supply includes comprehensive protection features such as overvoltage, current limiting set at 105%, thermal overload, and input/output fusing, which safeguard connected equipment and enhance reliability. Additionally, a thermally activated cooling fan promotes effective heat management, ensuring consistent performance during continuous operation. The device supports a wide input voltage range of 105-125 VAC or 210-250 VAC, with a maximum input current of 5.5 amps at 115 volts and 2.5 amps at 230 volts, making it adaptable to various power sources. Its adjustable output voltage (21-27.5 VDC) provides flexibility for different application needs, with a ripple of approximately 70 millivolts and output regulation within 1% under all rated conditions. The unit can operate intermittently for up to 20 minutes with a 20% duty cycle or continuously 24/7, making it suitable for both transient and sustained power demands. Its compact design, measuring approximately 5.7 inches high, 4.8 inches wide, and 16.3 inches deep, weighs about 20 pounds, making installation straightforward. Optional features include modifications for use as a battery charger and transfer relay integration for backup power during outages, ensuring uninterrupted system operation. The Newmar Power 115-24-18CD is an essential component for maritime professionals seeking a dependable, high-performance power solution for critical communication and navigation equipment in demanding marine environments.

Features:

• Excellent regulation and ripple specifications maintain output voltage within 1% under all rated line and load conditions

• Corrosion-resistant heavy-duty aluminum case with integral shock mounts ensures durability in hostile environments

• Large heat sink fins for efficient heat dissipation promote cool operation during extended use

• Comprehensive protection includes overvoltage, current limiting, thermal overload, and input/output fusing

• Thermally activated cooling fan enhances thermal management for reliable performance

• Adjustable output voltage from 21 to 27.5 VDC provides application flexibility

• Supports continuous 24-hour operation with a 20-minute intermittent duty cycle

• Wide input voltage range of 105-125 VAC or 210-250 VAC for versatile power sourcing

• Compact, rugged design with powder-coated aluminum heat sink case enables easy installation

• Optional features include backup transfer relay and modification for battery charging