DC 40V-90V to 12V Converter Voltage Regulator Reducer 48V 60V 72V Step Down to 12V 20A 240W Converter Waterproof Buck Transformer Power Supply for Golf Cart Club Car LED Light

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 use for charge. Keep good air convection.

* Never reverse the polarity.

* Use the enough big cable to avoid the voltage drop.

Specifications:

Input Voltage Range: 40V-90V 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: -40~85°C

Weight: 550g

Features:

1. 100% full power and stable current output, non-isolated module.

2. Industry grade DC 40V-90 to DC 12V step down/up 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 40V/90V to12V 20A 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.