The ABB MS495‑40 is a manual motor starter / motor protective circuit breaker designed for direct manual control and protection of electric motors in industrial and commercial applications. It provides manual switching ON/OFF of motors as well as overload, short‑circuit, and phase failure protection without the need for a separate fuse. The device incorporates a trip‑free mechanism and a clear rotary handle with position indication for ON / OFF / TRIP status, and the handle is lockable to prevent unauthorized operation. The MS495 series is suitable for use with three‑phase and single‑phase motors and is typically mounted on a standard DIN rail
