... ~264.5VAC (VDE)201~268VAC (SAA) Grid frequency range47.5~50.2Hz (50Hz)THD of AC current<3%<3%<3%Power ... .99Island detectionActive detection protectShort-circuit proofingyesyesyesEfficiencyMax. efficiency96.50%96.50%97.50%Euro. efficiency95.50%95.50%96.50%EnviromentAmbient temperature range-20°C~+60°CStorage ... (DK5950),CNCA,IEC62109,GB/G83,SP/RD1663 SOLAR GRID PV INVERTER FOR AUSTRALIA