... 4.5 HzTHDi<3%Power factor0.99Output phaseSingle phaseSystemPeak inverter efficiency97.7%Euro efficiency97%Dynamic MPPT efficiency99%EncloseIP65Ambient ... EN61000, VDE0126, ENEL, AS3100, AS4777Mechanical DataDimension360mm*160mm*565mmWeight25KgString inverter features High reliability and high efficiency design, maximum efficiency is ... Yield calculation for users. 4.2 KW Solar On-grid Inverter