... induction cooker, generator, printer, duplicators, lighting equipment, test equipment, and etc.Description:PSI Series UPS(inverter) provides pure ... short circuit protectionWhen short circuit happens, UPS(inverter) will shut down and giving warning.Sensitive ... loading & batteryInputVoltage140~275 VacFrequency45~65 HzOutputVoltage220Vac ±1% for inverter; 220Vac ±8% for regulatorFrequency50/60 Hz ± 0.5Hz ...