⚡When one power goes wrong (only test normal Phase A voltage and reserve Phase A voltage, only test loss voltage or loss phase),it will automatic connect one or several load circuits from one power to the other power automatically, to ensure normal power supply of load circuits.
⚡Complete protection function:This switch support variety protection function, including short circuit, overload, lack of phase, under voltage protection.
⚡Easy installation:Reasonable structure, small size, equipped with protective cover, power supply is easy to install and reliable.
