The Talamex Quickstop inboard switch is a safety switch / circuit breaker (dead man's switch) for retrofitting to inboard engines that get their ignition voltage directly from the battery, e.g. for diesel engines. The quick stop works according to the interrupter principle, i.e. when the clip is removed, the contact is interrupted and the ignition is cancelled or the fuel solenoid valve closes. Colour: Grey (the picture shows the version for outboard engines)