L22ED01-3E01 is a maintained non-illuminated mushroom push-button switch designed for industrial control applications. It features a 22mm diameter mushroom head with a push-turn reset mechanism and a 40mm overall diameter bezel. The switch has a normally closed (NC) contact configuration and operates with a black bezel finish. This switch is commonly used in emergency stop systems, machinery control panels, and industrial automation where reliable manual actuation and reset capability are required.