Abstract: A electric switch is formed in the shape of a container having a front plate adapted for lockingly engaging an opening in an appliance control panel when the switch is rotatingly inserted within the opening in a clockwise direction. The front plate is shaped to allow orientation of the switch in a predetermined position. To unlock the switch from the panel for replacement or repair, the switch must be rotated in the counter-clockwise direction. A spring-loaded cam attached to the front plate engages a separate opening in the panel to prevent inadvertent removal of the switch during operation.