... , rotor-locked, Asymmetry protectionFunctions:Micro processor inside, with high reliability and high anti-interference ability. Over-load, phase-loss, ... by scale accurately. Inverse time over-load protection, with 4 tripping class selectable. LED indication for current of ... ~400A80A~400A40kW~200kW ZHRA2 Three Phase Digital Motor Protector with overcurrent,Phase loss,rotor-locked,Asymmetry protection