LR1-D series thermal relay is suitable for thermal protection in the circuit with AC 50 or 60Hz, voltage up to 660V APPLICATIONSLR1-D series thermal relay is suitable for thermal protection ... independently. The product is made inaccordance with IEC292-KLR1-D series thermal relay and has kinds of species, 9A, 12A, 25A, 40A, 63A,80A. LR1-D Series Thermal Relay