This dual power automatic transfer switch operates at a rated voltage of 400V with a frequency range of 50/60Hz and a rated current of 100A. It is important to note that there will be a power interruption during switching and the switching time is less than 2.5 seconds. The switch can automatically alternate between normal power and reserve power but it cannot start or stop a generator. It prioritizes normal power at all times when available automatically switching to it whenever it is on. If the normal power supply fails and the reserve power is active the switch will then switch to the reserve power source. After wiring is completed pressing the automatic button allows the switch to handle transitions between normal and reserve power on its own. Pressing the manual button means you will need to manually adjust the direction of the switch. This design ensures reliable power transition meeting the needs of scenarios requiring consistent electricity supply while offering flexibility for manual operation when necessary.This dual power automatic transfer switch operates at a rated voltage of 400V with a frequency range of 50/60Hz and a rated current of 100A. It is important to note that there will be a power interruption during switching and the switching time is less than 2.5 seconds. The switch can automatically alternate between normal power and reserve power but it cannot start or stop a generator. It prioritizes normal power at all times when available automatically switching to it whenever it is on. If the normal power supply fails and the reserve power is active the switch will then switch to the reserve power source. After wiring is completed pressing the automatic button allows the switch to handle transitions between normal and reserve power on its own. Pressing the manual button means you will need to manually adjust the direction of the switch. This design ensures reliable power transition meeting the needs of scenarios requiring consistent electricity supply while offering flexibility for manual operation when necessary.