This Five Oceans Battery Switch is great for use on boats, caravan, 4x4, winch power cable, etc. and it's really easy to install. It can be used with 8V-48V systems to isolate and secure the electrical system. The twist knob style switch is manufactured with a durable, non-corrosive, ABS UV-stabilized Bakelite vapour-tight housing to resist harsh marine conditions.
The OFF position disconnects the battery, safely, to eliminate any power draw from the battery when vehicle or boat are not in use. The switch can be safely rotated to select either ON or OFF as the rotary dial has a spring-loaded keeper to lock the selected position.
Important: Engine must be stopped before selecting OFF; this is to protect the alternator.
Rated at 350 Amps Intermittent, 250 Amps continuous at 12V