The ABB MS2X‑6.3 is a manual motor protector / manual motor starter designed for protection and manual switching of three‑phase motors and power loads. It combines overload, short‑circuit, and phase‑failure protection in a compact, DIN‑rail‑mountable unit. The device allows users to manually switch motors on and off and protects against electrical faults such as overloads, short circuits, and loss of phase, helping prevent motor damage and reducing maintenance time. It is suitable for industrial and commercial applications where reliable motor protection and manual control are required.