Sea-Dog Safety Kill Switch Magneto. Designed to instantly cut battery power when detached. The magneto (red cap) version functions in applications where the circuit is normally open (not complete) with lanyard clip in place on switch. When lanyard is pulled and clip is removed from switch circuit is closed (complete) allowing grounding to a suitable ground such as a grounding block the battery or a suitable area on the engine itself. The kill switch includes a coiled lanyard that is approximately 15" when coiled and 48" when stretched which should be replaced if worn cut or frayed. Mounting hole is 5/8" in diameter. Maximum panel thickness: 5/8". Maximum 5A draw. WARNING: Switch should be tested for proper function before each use. Specifications for Sea-Dog Magneto Safety Kill Switch: Manufacturer: Sea-Dog Color: Black Package Contents: Sea-Dog Magneto Safety Kill Switch Sea-Dog 420486-1: Safety Kill Switch Magneto