Motor protection relay / temperature monitor for cold -wire connection, one monitoring circuit for PTC thermistor according to DIN EN 60947-8 , breakage and short circuit monitoring of the sensor cable , closed circuit principle ; with fault latch , reset button or reset via the power supply , Contacts 2 CO contact, Rated voltage AC 220 - 240 V 50 - 60 Hz , screw clamps , mounting : DIN rail; Width 45 mm