Change -over switch with key EL2- BG 21 1NO 2- positions

A button switch with 2 positions is an electrical switch that provides two or three stable operating positions. These switches are designed to be actuated by pressing a button or actuator, and each position corresponds to a specific electrical state or function. Button switches with multiple positions are commonly used in various electronic devices and control panels to select between different modes, functions, or settings. These switches have two stable positions, often referred to as momentary positions. In a momentary switch, pressing the button activates a circuit, but the circuit is only active while the button is held down. When the button is released, it returns to its default or resting position, breaking the circuit. Common applications include push-button start/stop switches or mode selectors.