Newmar Heavy Duty Power Supply

Bringing in power where it's needed most

The Newmar Heavy Duty Power Supply is ideal for powering 12 or 12 volt communication/navigation equipment onboard commercial vessels where reliability is essential. The proven linear circuit design provides pure noise free output and long service life.

Newmar Heavy Duty Power Supply Features:

• Designed for powering 12 and 24 VDC communication/navigation equipment aboard commercial vessels
  
• 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 rated line and load conditions
  
• Polyurethane conformal coated PC board and corrosion resistant heavy duty aluminium case with integral shock mounts assures survival in hostile environments
  
• 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
  
• 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
  

Newmar Heavy Duty Power Supply Specifications:

12v Output

Model	Nominal Input/VAC	Max Input Current @ 115	Max Input Current @ 230	Output Amperage (Intermittent)	Output Amperage (Continuous)	Case Size Ref.	Weight (kg)
115-12-20A	115/230	5.5	2.5	20	8	P-2	9.1
115-12-35DC	115/230	7.5	3.5	35	35	P-3	14.6

24v Output

Model	Nominal Input/VAC	Max Input Current @ 115	Max Input Current @ 230	Output Amperage (Intermittent)	Output Amperage (Continuous)	Case Size Ref.	Weight (kg)
115-24-10	115/230	5.5	2.5	10	4	P-2	9.1
115-24-18CD	115/230	7.5	3.5	18	18	P-3	14.6
115-24-35CD	115/230	12.5	7.5	35	35	P-4	27.3

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˚ C, Derate Linearly From 100% @ 40˚ C To 50% @ 50˚ C Thermal shutdown @ 85˚ C Case temperature
  
• C.D. Units: 0-65°C, Derate Linearly From 100% @ 50˚ C To 50% @ 65˚ C Thermal Shutdown @ 85˚ 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
  
• Output voltage adjust (see Output Voltage for range)
  
• Transfer relay for back-up battery in event of power failure (ERC option)
  

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)

Mechanical

• Powder coated aluminum heat sink case
  
• Front panel terminal block
  
• Heavy duty mounting flange
  
• Conformal coated PC board