1、Automatic and Manual: This dual power supply auto switch not only supports automatic mode, but also can be operated by manual button for easy operation and reliable performance. 2、Working Process: When one power supply fails, the power auto switch automatically connects one or more load circuits from one power supply to the other automatically to ensure normal power supply load circuits. 3、Multiple Protection: The dual power supply auto switch has high load power switching speed and safe switching with load. Support a variety of protection functions, including short circuit, overload, phase loss, under voltage protection. 4、PC and Silver and Brass: The automatic power switch is made of flame retardant PC material, which is well insulated, high temperature resistant, anti aging, safe and reliable, and uses silver contacts and brass motor coils. 5、Easy Installation: This ATS automatic switch has a compact structure, reliable transmission, easy installation and maintenance, screw mounting, vertical or horizontal installation, and convenient and reliable power installation. 6、Use Scene: This switch is mainly used for AC220V voltage conversion, such as hospitals, stores, banks, chemical industry, metallurgy, construction and other important situation where power failure is not allowed.