The ABB 1SAM550000R1010 (MS495‑100) is a three‑pole manual motor starter designed to provide manual ON/OFF control and motor protection in low‑voltage AC systems. It combines motor start/stop functionality with built-in thermo‑magnetic protection against overloads, short circuits, and phase failure. The starter features a rotary handle with clear position indication, a trip‑free mechanism, temperature compensation, and a lockable handle for safety. Optional accessories include auxiliary contacts, signalling contacts, undervoltage releases, and shunt trips.
