Automatic Transfer SwitchChina ATS 4p 160A 400A 630A 800A 1000A Controller Dual Power Diesel Generator Part AC 3 Phase Automatic Transfer Switch for Generator, Find details about China ATS, Auto Tranfer Switch from ATS 4p 160A 400A 630A 800A 1000A Controller Dual Power Diesel Generator Part AC 3 Phase Automatic Transfer Switch for Generator