Description This dual power automatic transfer switch is made of flame retardant material and equipped with a protective cover, so safety is guaranteed. It is small, beautiful, and allows you to enjoy one-touch power switching. There is almost zero noise during the operation.It is energy-saving and reliable, so you can rest assured that it is the right choice. Automatic Switching: Automatic switching: This dual power supply can automatically switch between the common power supply and the backup power supply. Instantaneous power switching ensures the normal operation of production and other aspects. Safe and Reliable: This automatic transfer switch uses high-quality flame-retardant plastic materials, so it has good insulation and is high-temperature-resistance and.