Features 1MAIN PURPOSE: 500V solar photovoltaic DC combiner box installed between the solar panel and the solar inverter with 1 string input and output. 2APPLICABLE 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. 3GOOD PROTECTION: With overvoltage overload and thunder protection function capable of long distance comm and extending the working life of solar system. 4EXCELLENT PARTS: Equipped with reliable DC components for maximum protection of PV DC disconnect switch transparent cover for easy detection of circuit breaker status. 5IP65 WATERPROOF: The distribution box has an IP65 waterproof grade allowing for indoor and outdoor installation providing effective protection in harsh environments. 6WIDE APPLICATION: Suitable for photovoltaic solar panel grid connected system solar off grid system solar power generation system photovoltaic array etc. Specification 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 List 1 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