Feature: 1. Multifunctional: This combiner box has multiple functions such as first class combination of PV array input, fast cut off circuit, lightning protection, reverse direction protection, overload, etc. 2. Excellent Quality Wires: This solar combiner box is equipped with professional wires, which are safe and reliable and especially suitable for solar energy systems. 3. Built In Earth Wire Connector: This combiner box has a built in earth wire connector to connect the ground wire. You can then connect the solar panel to the combiner box. 4. Wide Application: This combiner box is suitable for PV grid connected or off grid solar power systems, PV arrays, solar panels, RV solar systems, 12V, 24V, 36, 48V DC PV solar. 5. Excellent PC And ABS Material: This combiner box is made of excellent quality PC and ABS material, and its shell is flame retardant to prevent it from fire when working at high temperature, which is very safe and reliable. Specification: Item Type: Solar Combiner Box Material: PC, ABS Maximum Number Of Connected PV Arrays: 4 The Maximum Input Current Of Single PV Array: 15A Total Input Current Of PV Array: 60A The Maximum Input Voltage Of Single PV Array: 250V Total Maximum Input Voltage Of PV Array: 1000V Protection Level: IP65 Operating Environment Temperature: Approx. -30℃-+70℃/-22℉-158℉ Relative Humidity: 0-95% Cooling Mode: Natural Cooling Surge Lightning Protection: Yes. Package List: 1 x Solar Combiner Box