... 660VAC, and may transfer with load. The ATS rated current series is40A, 63A, 80A,125A, 160A, 250A, 400A, 630A, 800A ... bridge.when driving solenoid coil, switches action of backup battery complete the circuit. When the main power return normal ... The switch action when driving solenoidCoil. Mains power restoration, backup battery terminal supply at the same time.2. Structure and IntensityStructure ...