The Eaton Z-SCH230/63-40 is an Automatic Transfer Switch (ATS) designed for use in critical three-phase applications. It is able to transfer an electrical circuit between two power sources and can be wired manually or automatically. It features a Service Entrance rated enclosure and a NEMA 3R rated Type 1B enclosure. It has a 400 amp rating, a maximum voltage of 600VAC, and a maximum frequency of 60hz. It is UL/ULc listed, meets NEC Type 3R, and can be used in many applications such as marine, generator, residential, medical, commercial, food service and more.