Lucas Style SSB103 battery isolator switch

Lucas SSB103 battery isolator switch. These are the same switches that Lucas sell, but without the Lucas box! The switch has a third terminal which connects to the case (ie earth) when the switch is switched off. This can be used for earthing the contact breaker to kill the engine when the switch is turned to off.

Knob can be removed from switch by removing the circlip from the end of the knob shaft.