YES1 series ATSE is made up of switch body and transfer controller. The switch is driven by electromagnetic coil, so the transfer speed is very fast. The power source of controller takes main power or emergency power AC220V as working voltage.
NA,SA,LA3 type ATSE is integral type. The controller is installed inside of switch body.User only need to connect the main circuit then ATSE could work. It's convenient for users to connect wires.Meanwhile SA type ATSE with generator sarting signal,input wihout power,feedback wihout power. The controller is separated with switch body. User should connect controller with switch body by wires.
N,C,M,Q,S,L is split type. The controller is separated with switch body. User should connect controller with switch body by wires and stop signal output function (when main power fault, the signal will be sent out after 3s time delay.When main power recover,the signal willbe stopped after 3s time delay.)