... without UPS on Specifications: TechnologyLatest Line-Interactive Technology InputRated Voltage3 Phase, 380V/400VInput Voltage Range± 20%; ± 25%;+25%,-35%Input Frequency45Hz~65HzOutput Frequencysynchronized with ... voltage, output voltage, frequency, battery charging, battery capacity, load capacity, AVR/battery mode, error, overload ProtectionUtility Modeoutput high/low voltage, overload ...