Kill switch
|
|
A kill switch is a security device used to shut off a device in an emergency situation in which it cannot be shut down with normal procedure. Unlike a normal shut down, which is generally designed to turn the machine off without damaging it, a kill switch is designed to abort the operation if at all possible.
For vehicles, is generally a stripe or string attached to the driver and, on the other end, to the main key. If the person falls out, the stripe will disconnect the key and the engine will shut off. This type is used in jet-skis, boats, lawn mowers, treadmills, and other powered devices.
A kill switch is also used for gasoline pumps or any other device that pumps large amounts of explosive or flammable chemicals. There is commonly a single kill switch for all pumps at a pumping station.
Kill switches are also used on land vehicles as an anti-theft device and as an emergency power off.