... voltage, frequencySingle phase,220V,50Hz/60Hz; 3 phase, 380V,50Hz/60HzAllowed fluctuationContinuous voltage fluctuation:within±10%, instant voltage ... 10°C,+40°CTemperature2090% RH(no condensation)Storage temperature-20°C,+ 60°CApplication areaindoor(no corrosive odor, dust) ... corrosive oder, no direct sunlight.Vibrationless than5.9m/ S2 380V 3PH-3PH 4KW MULTI-FUNCTIONAL VFD/AC DRIVE/FREQUENCY ...