... Drive:single or 3 phase, PID Control Function , Up to 25 fault protections ,Automatic Voltage Regulation (AVR) Function ,multi-step speed , multiple torque ... 2Rated output vol.(V)3φ 220V-240V3φ 380V-440VRated output current A34.57.0102.53.75Control modeSensorless Vector Control (SVC), V/F ... Vibration2M/S2 (0.2G)Protection rateIP20 2013 New Sensorless Vector Control Inverter,B504 Variable Speed Drive !