... imbalance: <3%; frequency fluctuation: within 5%.outputVoltageSingle phase,220V & 3 phase,380VOutput frequency0~600Hz.Overload capability150% rated current,1 minutes; 180% rated ... voltage, current limitation, over current, overload of inverter, overload of motor, overheat, overvoltage stallout, load short circuit, phase fault. Protection degreeIP21Cooling modeForced air coolingenvirenmentAmbient ...