UR 5 R 1021 motor circuit

Information

The thermistor relay UR 5 R 1021 is designed for monitoring the motor winding temperature (max 6 PTC) and for protection of motors equipped with thermocontacts. The relay provides short circuit monitoring of the measuring circuit, self-testing by means of an integrated reset button, alarm memory function and an optional autoreset function. The housing is made of flame retardant plastic, IP40 protection, IP20 touch protection. Permanent connection of terminals is disabled. If this condition is detected, the connected fan is without warranty.