... :DC reverse polarity, AC short-circuit protection, ground fault monitoring, grid monitoring, integrate all-pole sensitive, leakage current monitoring unit.> Standards ... AC voltage range 220V/230V/240V180 V – 280 V AC grid frequency range50 Hz, 60 Hz / ± 5 HzPhase shift (cos φ)1THDI<3 ... -6-3,EN61000-6-4AS4777, AS/NZS 3100 Growatt 3600MTL grid tied inverter