... controller relay is used to control the contactor in the AC circuit (rated voltage up to 600V). it integrates ... overtime, overload, overcurrent, phase failure, current unbalance, short circuit, earth fault, underload, external fault. 8 optional protection: Leakage ... information:For more information, pls kindly contact us. Thanks in advance. PMAC801 MODBUS motor protector, Profibus Motor protector, ...