ABB eOS Fused Enclosed Rotary Switches are high-performance fused disconnect switches designed for safety and reliability in extreme conditions. ABB eOS Fused Enclosed Rotary Switches are rated up to 600V and have a 20A to 600A current range. These UL-listed components offer a wide range of options to suit a user's application needs. Enclosure options include NEMA Types 1, 3R, and 4X stainless steel and Type 4 plastic. The eOS offers pistol and selector switch operators and auxiliary contacts.