The ABB M2SS2‑11C is a compact selector switch operator designed for industrial control panels and machine operator stations. It features a short rotary handle with a rugged, industrial‑grade housing. The switch provides two maintained positions for selecting between control states (for example, ON/OFF or two operating modes). The device includes one normally open (NO) and one normally closed (NC) contact for flexible control logic or feedback indication. Its 22 mm panel mount and robust construction make it suitable for use in automation systems, machinery controls, and electrical distribution panels where reliable manual selection input is required.