... sine wave<3.5%Control SystemPWMAnti-islanding≤0.5 sec.Output Overload100%Max. Efficiency97%Euro Efficiency96.4%StructureCooling SystemNatural coolingProtection degreeIP65 ... wet with dew)Protection(Inverter) Input over-voltage, Output Short Circuit, Overheat, Overload, Output DC component(Grid) Anti-islanding(IEEE1547), Over/Under ...