... .CE, CCC,SGS, ISO 380V 3PH-3PH 2.2KW MULTI-FUNCTIONAL VFD/AC DRIVE/FREQUENCY INVERTER 1. SY8000 AC DRIVE/VFD ... functionOver voltage, under voltage, current limitation, over current, overload of inverter, overload of motor, overheat, overvoltage stallout, load short circuit, ... corrosive oder, no direct sunlight.Vibrationless than5.9m/ S2 380V 3PH-3PH 4KW MULTI-FUNCTIONAL VFD/AC DRIVE/FREQUENCY INVERTER