Newmar Power 115-12-20A Power Supply for Marine Communication Equipment

115-12-20A 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

The Newmar Power 115-12-20A power supply is designed for reliable operation of 12-volt communication and navigation systems onboard commercial vessels. Its rugged construction ensures durability in harsh marine environments, featuring a corrosion-resistant aluminum case with integral shock mounts and a conformal-coated PC board for enhanced resistance to moisture and corrosion. The linear circuit design delivers pure, noise-free output, maintaining stable voltage under varying load and line conditions, which is critical for sensitive electronic equipment. Its efficient heat dissipation system, including large heat sink fins and a thermally activated cooling fan, ensures cool and consistent operation even during extended use.

This power supply offers excellent regulation, with output voltage maintained within 1% across all rated conditions. It includes comprehensive protection features such as overvoltage, current limiting, thermal overload, and input/output fusing, safeguarding your equipment from electrical faults. The unit supports a maximum intermittent current of 20 amps and provides a continuous output of 8 amps, making it suitable for demanding marine applications. The adjustable output voltage, ranging from 12.6 to 14.5 VDC, allows customization based on specific system requirements.

Designed for flexibility, the Newmar Power 115-12-20A can be modified for use as a battery charger, and includes options for a transfer relay to support backup battery systems in case of power failure. It operates on selectable input voltages of 105-125 VAC or 210-250 VAC at 50-60 Hz, with a derating of 50% output below 110 and 220 VAC. The unit is built to operate reliably within a temperature range of 0 to 50 degrees Celsius, with a linear derating starting at 40 degrees Celsius to prevent overheating. Its robust construction and precise regulation make it a dependable choice for marine power applications, ensuring continuous operation of vital communication and navigation equipment under demanding conditions.

Features:

• Excellent voltage regulation with 1% stability under all rated line and load conditions

• Corrosion-resistant heavy-duty aluminum case with integral shock mounts for marine durability

• Efficient heat dissipation through large heat sink fins and thermally activated cooling fan

• Comprehensive protection: overvoltage, current limit, thermal overload, input/output fusing

• Adjustable output voltage from 12.6 to 14.5 VDC for system customization

• Supports up to 20 amps intermittent and 8 amps continuous output

• Selectable input voltage range of 105-125 VAC or 210-250 VAC at 50-60 Hz

• Operates reliably within 0-50°C temperature range with linear derating

• Designed for continuous 24-hour operation with 20-minute intermittent duty cycle options

• Includes options for modification as a battery charger and backup transfer relay