... failure, rotor-locked, Asymmetry protectionFunctions:Micro processor inside, with high reliability and high anti-interference ability. Over- ... switchTripping class selectableLED indication for three phase current, measuring error≤ 2%Can be started without loadApplication ... 400A80A~400A40kW~200kW ZHRA2 Three Phase Digital Motor Protector with overcurrent,Phase loss,rotor-locked,Asymmetry protection