Cat® switch switches are designed for a range of standby energy applications. They grant flexibility, reliability and cost in a compact package. A Bypass Isolation Automatic Transfer Switch (ATS) gives wholly functioning switch in purposes where emergency strength to vital hundreds have to be maintained at all instances with no interruption. This kind of format permits for inspection, preservation or substitute of the strength switching mechanisms with no interruption in electrical service. Contactor -based Bypass Isolation ATS are accessible from 100A to 1200A.