This is a Heavy Duty Plastic Type Battery Isolator Switch / Key Cut Off Power Kill Switch. It provides a simple way to isolate vehicle electrics, useful as an anti-theft device or for separating starter batteries or auxiliary batteries. Unlike some versions, the turn tab on the base of the key is made of steel for durability. It can handle a maximum load of 1400Amp at 12Volt for 10 seconds and 180Amp continuous, or 700Amp at 24Volt for 10 seconds. The switch features robust construction with 19% injected fibreglass, 10mm copper terminals, and comes with 2 keys. It also includes a rainproof key shaft cover and has 4 fixing points for flexible mounting. This switch is suitable for both 12 and 24 volt systems.