... system protection functions: It has AC over-voltage, under-voltage, output over-voltage, under-voltage, output overload, short circuit protection ... x14001420x740x1805Weight(Kg)(Excluding battery)180200230 255 310 32046047553077085513001350InputVoltageThree phase with four Lines +ground wire,380V±20 ... 5%Imbalance voltageBalance load≤1%,Imbalance load≤3%Phase shift angleBalance load≤±1°, Imbalance load≤± ...