Isolator Battery Switch 12V Main Battery Disconnect with Keys 300A Battery Switch for Boat Car Truck

Material: the shell is made of plastic, copper terminals with iron hex nuts for enhanced continuity, high temperature resistant, not afraid of falling, durable. Function: Used for battery to isolate and secure the electrical system, eliminate any power consumption of the battery when the vehicle or boat is not in use, disconnects the battery safely. Extra Protection: The battery main switch comes with 2 keys and a weather cover, and the keys also cover the opening when using, which can better protect the dust and water entering the key hole. Size: The diameter of the screw is 8 mm/0.31 inches and the installation opening is 5 mm/0.20 inches. The battery switch is used for DC 12V, rated current: 300A (12V). Wide applications: It can be used as the opening key of various electrical appliances such as strobes, chassis and fog lights, which can be used indoors and outdoors.