Square D CMS1-120V-3PH Combination Motor Starter

Square D CMS1-120V-3PH Combination Motor Starter is a Size 1, three‑phase motor control module that integrates a contactor with thermal overload protection in a single compact package. It uses a 120 VAC control coil to energize the starter from a standard control circuit, enabling start/stop control of a 3‑phase motor while providing built‑in protection for the motor windings. As part of Square D’s CMS1 family, this combination starter consolidates switching and overload protection in one assembly, reducing wiring and panel space compared with separate devices. It is intended for 3‑phase motor applications in electrical control panels and machine assemblies where a compact, integrated starter is preferred.