... Three Phase 3,OEM Three Phase LCD Display Motor Protector with Overload, underload, phase failure, rotor-locked, Asymmetry, earthing ... for current, faults etc, measuring accuracy≤ 2%RS485 communication port, network built1 C/O contact and 1 auxiliary ... Star-delta starting or auto-induction voltage reduced starting.RS485 communication port, network built4mA~20mA analog output selectableMain technical ...