Auto Transfer Switch (ATS) is made up of an intelligent transfer controller and a 4 poles electro motion load transfer switch. ATS can automatically transfer load between the main power and the emergency power (generating set) without the operator. When the main power fails or the voltage drops below 80% of normal voltage, the ATS will start the emergency generating set after a preset time of 0-10 seconds (adjustable), and transfer the load to emergency power (generating set). Contrarily, when the main power recovers to normal level, the ATS will transfer the load from the emergency power (generating set) to the main power, and then stop the emergency power (generating set). 

The intelligent transfer controller inspects every phase voltage and frequency of the mains/the generator power and the position of the switch real-time. It also has kinds of the time delay control function for all inspected parameter(Delay time adjustable).It can fulfill manual/automatic operation & control function. It is very easy for field installation together with automation control panel, unmanned guards autotransfer between mains and generator power can be achieved. There is an electric double loop mechanical contact switch insider the panel to ensure the transferring between mains generator power safe & reliable.