HAT163 ATS Controller is suitable for one breaking three stage ATS. It can accurately detect 2-way-3-phase voltage and judge voltage abnormal (such as over voltage, under voltage, over frequency, under frequency, lack of phase and phase rotation), and then control ATS to switch. In auto mode, if source 1 failure, controller will send signal to start the genset. Moreover, it can also realize remote communication, remote control and parameter configuration functions via LINK port communication.