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

Material: The casing is made of high-quality plastic, copper terminals with iron hex nuts for improved continuity, high-temperature resistant, drop-proof, durable.
Function: Used to isolate and secure the battery's electrical system, eliminating any power consumption from the battery when the vehicle or boat is not in use, safely disconnecting the battery.
Additional Protection: The main battery switch comes with 2 keys and a weatherproof cover. The keys also cover the opening during use, which can better protect against dust and water entering the keyhole.
Size: The screw diameter is 8 mm / 0.31 inch and the installation opening is 5 mm / 0.20 inch. The battery switch is used for DC 12V, rated current: 300A (12V)
Wide applications: it can be used as an opening key for various electrical devices such as strobe lights, chassis lights, and fog lights, and can be used both indoors and outdoors