Cllena DC 36V 48V Step Down to 12V 30A 360W Voltage Reducer Converter, Waterproof DC/DC Buck Transformer Power Supply

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:
36V/48V DC battery as input power to 12V DC appliances as output load.

Specifications:
Input Rated Voltage: 48V DC
Input Voltage Range: 30-56V DC
Output voltage: DC12V 30A
Output Rated Power: 360W
Efficiency: 97% (half load); 95% (full load)
No-load current: <0.1V
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 DC48V 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 48-12V 30A 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.

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