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- Reminder: Never reverse the polarity. Use the enough big cable to avoid the voltage drop. Never connect to solar panel, inverter or wind turbine. Never charge the battery. Keep good air convection. 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.