Newmar 32-12-25 DC Converter

The 32-12-25 DC Converter is an essential power solution for marine and boating applications, seamlessly converting 20-50 VDC input to a stable 12 VDC negative ground output. Designed to reliably power your communication and navigation equipment, this converter ensures optimal performance even in the most demanding marine environments.

Features

• Exceptional Voltage Regulation: Maintains output voltage within 1% across all line and load conditions within its rated capacity.
• Efficient Cooling System: Large heat sink fins maximize air contact, effectively dissipating heat generated by semiconductors for cool operation and extended component lifespan.
• Durable Construction: Polyurethane conformal coating on PC boards and corrosion-resistant anodized aluminum cases with heavy-duty shock mounts ensure longevity in harsh marine conditions.

Protection Features

Safety and reliability are paramount in marine environments. The 32-12-25 DC Converter is equipped with numerous protection circuits to safeguard both the converter and connected loads:

• Current Limiting
• Automatic Thermal Shutdown
• Short Circuit Protection
• Reverse Polarity Protection
• Overvoltage Protection
• CE Certified for Compliance and Safety

Specifications

Parameter	Details
Input Voltage	20-50 VDC
Output Voltage	13.6 VDC (internally adjustable from 12.6 to 14.5 VDC) or 24.5 VDC (customizable upon request)
Output Current (Intermittent)	25 A
Output Current (Continuous)	20 A
Case Dimensions (H x W x D)	6.0 x 4.7 x 14.0 inches (15.2 x 11.9 x 35.6 cm)
Weight	7.5 lb (3.4 kg)
Ripple Voltage	150 mV P-P maximum
Regulation	1% Line/Load
Switching Frequency	40 kHz
Efficiency	85% Typical
Isolation	250 VDC between Output and Chassis, Input and Chassis

Duty Cycle Ratings

• Intermittent: Up to 20 minutes on time with a 20% duty cycle. Current limit set at approximately 105% of the intermittent rating.
• Continuous: Suitable for 24-hour operation with a 100% duty cycle. For models 24-12-3, the maximum on time is 2 minutes.
• Idle Current: Less than 100 mA, including the power "ON" indicator light.

Operating Temperature Range

• 0-50°C: Derates linearly from 100% capacity at 40°C to 50% at 50°C.
• Thermal Shutdown activates at a case temperature of 70°C.
• Model 24-12-3: Full output from -25°C to +30°C. Derates linearly from 100% at +30°C to 45% at +50°C.

Mechanical Construction

• Robust powder-coated aluminum heat sink case for enhanced durability.
• Front panel terminal block for easy and secure wiring connections.
• Heavy-duty mounting flange for secure installation on various marine vessels.
• Conformal coated PC board to protect against moisture and corrosion.

Available Options

• Battery Charger Operation or Parallel Redundant Setup: Derates to continuous duty rating. Contact the factory for customization.
• Extreme Vibration Mounting Kit: Enhance stability and protection against shock and vibration when installed on high-vibration vessels. Available as Kit L for units weighing 2–15 lb and Kit H for units weighing 16–70 lb.

Extreme Vibration Mounting Kit

The Extreme Vibration Mounting Kit is designed to safeguard your NEWMAR power converter from the severe stresses of shock and vibration encountered on high-vibration marine vehicles. This kit replaces the standard vibration mounts and integrates seamlessly with the unit’s mounting flange, acting as a superior shock absorber to protect sensitive electronics in challenging environments. Suitable for all NEWMAR units ranging from 2 to 70 lb, choose Kit L for lighter units (2–15 lb) and Kit H for heavier units (16–70 lb).

Return Policy: This product cannot be returned to the original point of purchase. For any issues or concerns, please contact the manufacturer directly.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.