For ratings above 1200A ACB’s are used. Due to the significant current involved, Air is the medium necessary for this breakers. Ratings range from 630 to 6300A, Fixed and Draw-out types are available with KAIC ranging from 85 to 150KA. Auxiliary Contacts, Charging Motor, Shunt Coil, Closing and UVT Coils, and Trip Relays are part of the accessories.