... ,220V AC input 2.Input power:grid electricity,solar power,wind power,diesel generator. 3.7 sedonds delay 1.Change over ... power supply system. 2.input state grid power, Solar power, Wind power, Diesel generator and related power resource. 3.When one ... way,3 way or 4 way(optional)Rated current:30AWorking temperature:-40°C------80°C Wind solar diesel power change over switch