ABB THERMISTOR MOTOR PROTECTION RELAY WITH SHORT CIRCUIT DETECTION CONTROL 24-240VAC/DC 1NO+1NC CM-MSS.21S

The Thermistor Motor Protection Relay is designed to monitor PTC temperature sensors using one sensor circuit. It features short-circuit detection, dynamic interrupted wire detection, and non-volatile fault storage. The relay operates based on the closed-circuit principle and has three LEDs for visual indication. With a rated control supply voltage of 24-240 V AC/DC, this relay is capable of handling various power sources. It is equipped with 1 normally open (NO) and 1 normally closed (NC) output contact, both rated at 250 V / 4 A. The relay also includes interrupted-wire monitoring functionality. In case of failure, the relay will automatically reset once the issue has been resolved. Additionally, it features double-chamber cage connection terminals for secure and reliable connections.