... 1.100kw on grid sine wave inverter 2.with transformer 3.high invert efficiency 4.warranty:3years ... monitoringRS485 with electrical isolationTHDTHD(Iac)<4 %(full power)Overload capacity120% , ≥1 min; 120%~150% ,≥10 seconds; short circuit current≤150% ... DC, Temperature anomaly , Under voltage DC, Over current AC, Over current CDCEnvironmentNoise(dB,1m)≤50Working Temperature(°C)-20~+50Working Humidity0 ...