24V DC- 12V DC Step Down, 40 Amp "BUCK" Converter
24V DC- 12V DC Step Down, 40 Amp "BUCK" Converter
24V DC- 12V DC Step Down, 40 Amp "BUCK" Converter

24V DC- 12V DC Step Down, 40 Amp "BUCK" Converter

Regular price $40.00
Unit price  per 

Size: 24V to 12V 20A

Wiring: OUTPUT+ to LOAD+, OUTPUT- to LOAD-; INPUT+ to BAT+, INPUT- to
BAT- Note: * Never connect to solar panel, PWM/MPPT charge controller, inverter or wind turbine. * Never charge the battery. Keep good air convection. * Never reverse the polarity. * Use the enough big cable to avoid the voltage drop.
Application: 24V DC battery as input power to 12V DC appliances as output load.
Specifications: Input
Rated Voltage: 24V DC
Input Voltage Range: 18-35V DC
Output voltage: DC12V 20A
Output Rated Power: 240W
Efficiency: 97% (half load); 95% (full load)
Ripple: 200mVp
Line Regulation: 0.2 %
Load Regulation: 0.2 %
Voltage Accuracy: 1.5 %
Enclosures: IP68 Case
Operating Temperature: -40~85C
Weight: 288g

Size: 24V to 12V 40A

Input Rated Voltage: DC 24V
Input Voltage Range DC 19V ~ 35V
Output Voltage DC 12V 40A
Output Rated Power 480W
Efficiency 97% (half load); 95% (full load)
Output Peak Power 600W
Voltage Regulation Less Than 1%
Load Regulation Less Than 2%
Ripple(full load test) Less Than 150mV
Total Size 100*80*39mm(L*W*H)
Package Included 1 x DC 24V to DC 12V 40A Voltage Converter


1. 100% full power and stable current output, non-isolated module.
2. Industry grade DC24V to DC 12V step-down converter, efficiency up to 95%.
3. Die-cast aluminum shell, epoxy potting, cooling by free air convection; Waterproof level IP68 and anti-shock protection.
4. Protections: Over-current, Over-voltage, Over-temperature, Over-load and Short-circuit, auto-recovery when device is back to normal operating.
5.Certificates: CE/RoHS, 1 year warranty, lifetime up to 100, 000 hours.
Package included: 1 x DC 24-12V 20A

Voltage Converter Questions: How to choose the correct current for loads? For example, if the max current of your load device is 10A, then choose 10A/ 0.8 = 12.5A at least for resistive loads according to international standard. If the load device is motor or compressor, then you may choose 10A/ 0.5 =20A according to real testing result since the motor and compressor starting current may be 2-3 times than nominal current.


Manual/Specs Download