1SVR550801R9300

ABB CM-MSE Thermistor Motor Protection Relay, Part Number 1SVR550801R9300, a reliable industrial motor temperature monitoring and protection device designed for electrical control panels, motor control centers (MCC), industrial machinery and automation applications.

The ABB CM-MSE is designed to monitor the temperature of electric motors through connected PTC thermistor sensors or compatible bimetal contacts. It helps protect motor windings against overheating caused by excessive operating loads, inadequate cooling, abnormal operating conditions and other temperature-related issues.

This thermistor motor protection relay operates with a rated control supply voltage of 220–240V AC and features one normally open output contact rated at 250V / 4A. It incorporates one sensor circuit and operates according to the closed-circuit principle, allowing it to respond when the monitored temperature reaches an unacceptable level.