Eaton’s Automatic Transfer Switch with Bypass Isolation is designed to provide unmatched performance, reliability and versatility for critical standby power applications. The switches can be equipped with the ATC-300 or ATC-800 controllers to match your application needs. A Bypass Isolation Transfer Switch may be used to provide emergency power to life safety and other critical loads where maintenance of the main transfer switch, without interruption of power, is either desirable or required.