1.mainly for industrial applications 2.better at protection as surges,spike,blackput,shortages,outages,poor-quality supply ModelTP812Rated capacity12KVA/9.6KW Operating principle Pure sine wave dual conversion on-lineAC inputPhaseThree phase +N+GVoltage220V±20% Frequency60HZ±10%DC inputRated DC voltage180Vdcfloating voltage200VdcCut-off voltage160VdcCharging timecharge to 90% in 8 hours AC ...