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February 7, 2020

20 Amp 24 volt to 12 volt DC/DC Converters

40 amp peak DC/DC converter, 24VDC to 13.8VDC
24 volt to 12VDC heavy duty DC/DC converters 5 Amp
More Heavy Duty, Consumer, Industrial, and Military Grade 24VDC to 12VDC Converters

This page: high power 24 volt to 12 volt DC/DC converters at low cost. 400 watts peak, 270 watts continuous.

These are fully regulated switching power converters (switchmode), designed to allow the use of 12 volt equipment in 24 volt vehicles. These are attractive, reliable, robust DC/DC converters good for fork lifts, off-road, construction and recreational equipment. Those that are listed as "forced air cooling" should be protected from water, spray, and dust that could be sucked into the power supply.

To determine the amperage you need just add up the watts of all the equipment and divide by 13.8 volts.

These are also known as 24 volt voltage reducers, and voltage regulators. These DC/DC voltage reducing converters are suitable for running electronics, such as radios, CD players, computers, and CB radios. They are can be suitable for motors, solenoids, or other electromechanical devices if they are protected from inductive kickback and motor noise, and the converter's output current is rated for the inrush, stall, and locked rotor current of the load.
DC-DC Converters 40 Amp Peak
DC to DC Converter
40 amp peak DC/DC converter, 24VDC to 13.8VDC
Part Number
and Price
Quantity 1-10 $165.50
11-100 $145.00
Continuous Current 20 Amps
Peak Current 40 Amps
Input Voltage 20 to 28 VDC
Max Input current at No Load 100 mA
Output Voltage 13.8 ± 0.1 VDC
Output Adjustment 12.5-15.5V with internal trimpot VR1
Max Output Current(s) 40 Amps (milliseconds)
Max Output Power (continuous) 270 Watts
(20 Amps)
Max Output Power (milliseconds) 550 Watts
Output current limit? Yes
Output Plug Type Banana plug + screw terminal standard, others on request
Efficiency 85 %
Line Regulation ±14 mV
Load Regulation ±27 mV
Switching frequency 25 kHz
Output ripple noise 50 mV rms
Remote power on/off No
Protection Over Voltage , Over Current, Reverse Polarity , Over Load. NO SHORT CIRCUIT PROTECTION.
Connections M4 Screw terminals
Dimensions 200 x 195 x 70 mm (7 7/8 x 7 11/16 x 2 3/4 inches)
Drawings Click Here for Drawing
Weight 1.5 Kg (3.3 lbs)
 Isolation  Common negative ground
Temperature 0 to 40°C, 25 degree rise above ambient at continuous full power
Additional Features Forced Air Cooling


Inexpensive High Current Switchmode DC/DC Converters.

High efficiency.

Excellent line and load regulation.

Wide input voltage range.

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