The ABB OS400J02 is a robust 2-pole, 400A fusible disconnect switch, part of the Powerline Series, designed to meet diverse industrial needs with high interrupting capacity and long electrical life. This switch offers a wide range of international fuse clip options including UL, CSA, DIN, BS, NFC, and ultra-rapid types, ensuring compatibility across various applications. It features a quick-make/quick-break mechanism, door interlock, and full fuse isolation when in the off position, enhancing safety and operational reliability. The OS400J02 can be operated through rotary through-door, flange mounted, or motorized methods, providing flexibility in installation and use. With options ranging from 2 to 8 poles and current ratings from 30A to 800A, this switch is designed to perform in extreme environments from the tropics to the arctic. Additional safety features include UL/CSA and/or IEC approval ratings and padlockable handles, making it a secure choice for any rugged industrial setting. The switch supports up to 350 horsepower at 600V in a 3-phase system and is designed for panel mounting with a thru-door operator type.