LR2-D seties of thermal relay can be used in the circuit of 50/60Hz, rated insulation voltage 660V, rated current 0.1-93A for protectin the phase break when the electric motor is overload. The relay has different mechanism and temperature compensation & can be pluged in LC1-D series AC contactor. It is the most advanced thermal relay in the nineties in the world. Fundamental parameter of the main circuit: Rated insulation voltage: 660V Rated working current 25A, 36A, 93A separately. The regulator seal of rated setting current and setting. Auxiliar circuit: There are one pair of N/O and N/C contact with electric insulation Rated insulation Voltage: 500V Rated frequency 50/60Hz. Use group, rated working voltage, appoint thermal current and rated current.