... AC short-circuit protection, ground fault monitoring, grid monitoring, integrate all-pole sensitive, leakage current monitoring ... unit.> Standards complied: EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4,EN61000-3-2, EN50178 ... . AC power4400WMax. output current21AAC voltage range200Vac-250VacAC grid frequency range40.1HZ-50.9HzPhase shift (cosφ)1THDI ... EN6100-3-2 DC SWITCH Grid-tie inverter