The Thermistor Motor Protection Relay is designed to monitor PTC temperature sensors using one sensor circuit. It features short-circuit detection and dynamic interrupted wire detection. The relay operates based on the closed-circuit principle and has three LEDs for visual indication.
It is compatible with control supply voltages of 110-130 V AC and 220-240 V AC. The relay has two CO (SPDT) output contacts rated at 250 V / 4 A. It also includes interrupted-wire monitoring functionality.
After a failure has been resolved, the relay can be reset automatically, manually, or remotely. The double-chamber cage connection terminals ensure secure and reliable connections.