... over switch,220V AC input 2.Input power:grid electricity,solar power,wind power,diesel generator. 3.7 sedonds delay 1.Change ... /60Hz power supply system. 2.input state grid power, Solar power, Wind power, Diesel generator and related power resource. 3.When one ... way(optional)Rated current:30AWorking temperature:-40°C------80°C Wind solar diesel power change over switch