An electrical appliance switch has a switchable contact assembly and a switch controller. An actuator is in contact with the switch controller and has detent toothing on at least a portion thereof. A longitudinal adjustment cam has at least one notch for frictionally engaging the detent toothing. The adjustment cam has an oblong tubular configuration for surrounding a portion of the actuator and has a closed bottom end. The adjustment cam contacts the switchable contact assembly. Adjustment of the adjustment cam substantially sets a lead path of the actuator. The actuator cam has at least one cam face which has a slanting plane configuration for contacting the switchable contact assembly. Adjusting the actuation cam causes the cam face to change a transmission ratio of a longitudinal displacement path of the actuation cam to a cam spread displacement.