Thermistor motor protection relay with one sensor circuit for monitoring PTC temperature sensors. Features include short-circuit detection, dynamic interrupted wire detection, and non-volatile fault storage. The relay operates on a control supply voltage of 24-240 VAC/DC and has a 1 NO + 1 NC output contact rated at 250 V/4 A. It follows the closed-circuit principle and has three LEDs for status indication. The relay also includes interrupted-wire monitoring and can be reset automatically, manually, or remotely after the failure is resolved. It is equipped with double-chamber cage connection terminals.