LR1-D series thermal relay is suitable for thermal protection in the circuit with AC 50Hz or 60Hz, voltage up to 660V, motor power up to 45kW or less. It has different attachment and temperature compensating function. It has different attachment and temperature compensating function. It can be fixed on to contactor and can also be fixed independently. 

The product is made in accordance with IEC292-1. LR1-D series thermal relay has kinds of species including 9A, 12A, 16A, 25A, 40A, 63A, and 80A.