Sea-Dog Safety Kill Switch Ignition. Designed to instantly cut battery power when detached. The ignition (gray cap) version functions in applications where the circuit is normally closed (complete) with lanyard clip in place on switch. When lanyard is pulled and clip is removed from switch circuit is open (not complete) resulting in interruption of current to ignition and shutting off engine. 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 Ignition Safety Kill Switch: Manufacturer: Sea-Dog Color: Black Package Contents: Sea-Dog Ignition Safety Kill Switch Sea-Dog 420487-1: Safety Kill Switch Ignition