Feature 1 MAIN PURPOSE: 500V solar photovoltaic DC disconnect switch combiner box, installed between solar panels and solar inverters, plug and play. 2 CIRCUIT PROTECTION: With overvoltage, overload, and thunder protection function, capable of long distance comm, and has a long service life. 3 HIGH RELIABILITY: Equipped with reliable DC components to protect the PV disconnect switch, transparent cover for easy checking of the breaker status. 4 IP65 WATERPROOF: This combiner box has an IP65 waterproof grade, allowing for indoor and outdoor installation, can be used in harsh weather environments. 5 WIDE APPLICATION: This photovoltaic disconnect switch is suitable for photovoltaic solar panel on and off grid systems, solar power generation systems, RVs, etc.Item Type: 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 Disconnect Switch4 x Connectors (2 x Male, 2 x Female)4 x Cores4 x Screws4 x Expansion Tubes1 x PV Special Wrench4 x Plugs1 x User Manual