1,low frequency online ups 2,IGBT technology 3.,OEM is accepted and Factory price InputVoltageRated 380VAC±20% ... 5%Harmonic Distortion<3%(THD)under full linear loadingOverload Capacity1 minute in 150%, 10 minutes in 125%, 30 minutes in 110%Wave ... crest factorBetter than 3 : 1Waveformsine waveEfficiencyAC TO ...