12V 500A Heavy-Duty Power Cutoff Switch Waterproof IP67 Protection Universal for Car Boat RV Power Disconnect This power switch is designed for use in RVs, yachts, automobiles, and engineering vehicles, providing a solution for various applications.It functions as a disconnect switch to cut off power to the electrical system when the vehicle or vessel is not in use, helping to prevent drain and maintain system efficiency. The switch is built for and , engineered to prevent leakage and protect the power supply by enabling secure disconnection.It features a heavy-duty metal case with strong weather resistance, offering protection under harsh conditions.The design includes waterproof performance rated at IP67, in wet or dusty environments. Rated for 500A continuous current and capable of handling up to 5000A instantaneous surge at 12 volts, this master disconnect switch is suitable for -demand electrical systems.Constructed with zinc and copper materials, it supports robust connectivity with a stud size of approximately 10mm (0.39in). Package includes: 1 x Disconnect Switch, 1 x Knob, 1 x Nut, 1 x Gasket, 1 x Pin. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.