LRD Thermal Relay ,the new generation relay instead of LR2-D13.D23.D33 LRD Thermal relay are suitable for overload and phase-failure protection of AC motors with frequency of 50/60Hz, voltage up to 690V, current up to 0.1-150A under 8-hours duty or uninterrupted duty. Functions provided by these relays, are phase-failure protection, ON/OFF indication,temperature compensation, and manual/automatic ...