Feature 1 MAIN PURPOSE: 500V solar photovoltaic DC combiner box, installed between the solar panel and the solar inverter, with 1 string input and output. 2 APPLICABLE CABLE: This DC disconnect switch supports plug and play, suitable for cables with a diameter of 4-6mm, 13-10 AWG cables, and 4-6mm cables. 3 GOOD PROTECTION: With overvoltage, overload, and thunder protection function, capable of long distance comm and extending the working life of solar system. 4 EXCELLENT PARTS: Equipped with reliable DC components for maximum protection of PV DC disconnect switch, transparent cover for easy detection of circuit breaker status. 5 IP65 WATERPROOF: The distribution box has an IP65 waterproof grade, allowing for indoor and outdoor installation, providing effective protection in harsh environments. 6 WIDE APPLICATION: Suitable for photovoltaic solar panel grid connected system, solar off grid system, solar power generation system, photovoltaic array, etc.Item Type: DC Disconnect SwitchMaterial: Polycarbonate, ABSInput: 1 StringOutput: 1 StringMaximum Voltage: 500VProtection Level: IP65Cable Input Port: 4mmOutput Cable Gland: 4mmDC Circuit Breaker: Rated Insulation Voltage (Ui): 500VMaximum Working Voltage (Ucpv): 500VRated Working Voltage: 500V Package List1 x DC Disconnect Switch2 x Waterproof Joints4 x Connectors (2 x Male, 2 x Female)4 x Connectors with Cable (2 x Male, 2 x Female)4 x Cores4 x Screws4 x Expansion Tubes1 x Electrical Tape1 x PV Special Wrench1 x User Manual