32-12-25 DC Converter

Convert 20-50 VDC input to 12 VDC negative ground output for powering communication and navigation equipment on negative ground systems. (See Isolated Series for positive ground applications.)

Features:

Excellent Regulation: Output voltage maintained within 1% under all line and load conditions within rating
Heat generated by semi-conductors is extracted and dissipated by large heat sink fins that maximize air contact for cool operation and the long life of components
Polyurethane conformal coating on PC boards and corrosion-resistant anodized aluminum cases with heavy-duty shock mounts assure survival in hostile environments

Numerous Converter and Load Protection Circuits:

Current limiting
Automatic thermal shutdown
Short circuit proof
Reverse polarity
Overvoltage protection
Carries CE mark

Specifications:

Input Voltage: 20-50
Output Voltage: 13.6
Output Amps (Intermittent): 25
Output Amps (Continuous): 20
Case Size (H x W x D): 6.0 x 4.7 x 14.0 inches (15.2 x 11.9 x 35.6 centimeters)
Weight: 7.5 lb. (3.4 kg)
Output: 13.6 VDC (internally adjustable 12.6 -14.5) or 24.5 VDC (or specify)
Ripple: 150 mV P-P maximum
Regulation: 1% Line/Load
Switching Frequency: 40 Khz
Efficiency: 85% – Typical.
Isolation: Output/Chassis; Input/chassis: 250 VDC

Duty Cycle Ratings*:

Intermittent: 20 minutes max on time, 20% duty. current limit set at approx. 105% of intermittent rating.
Continuous: 24 hours, 100% duty *24-12-3: 2 minute max. on time
Idle Current: Less than 100 mA (including power “ON” light)

Operating Temp Specifications:

0-50 degrees C, Derate Linearly From 100% @ 40 degrees C To 50% @ 50 degrees C.
Thermal shutdown @ 70 degrees C Case Temperature
Model 24-12-3: Full output -25 degrees to +30 degrees C; Derate linearly from 100% @ +30 degrees C to 45% @ +50 degrees C

Mechanical Specifications:

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

Options:

Operation as a battery charger or parallel redundant operation* – derate to continuous duty rating (contact factory)
Extreme vibration mounting kit. (Information below)

Option: Extreme Vibration Mounting Kit

The Extreme Vibration Mounting Kit is available to protect NEWMAR power converters from the extreme stresses of shock and vibration when mounted on high-vibration vehicles. The kit replaces the standard vibration kit provided with the unit and fits into the unit’s mounting flange to act as a ‘super shock absorber’ for electronics in high vibration applications. It is available to fit all NEWMAR units from 2 to 70 lbs. Specify KIT L for units that weigh 2–15 lbs. and Kit H for units that weigh 16–7 lbs.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Newmar 32-12-25 DC Converter [32-12-25]