Schneider Electric Square D QMB363TWRK Switch

Schneider Electric Square D QMB363TWRK is a fusible twin-branch switch unit kit designed for QMB panelboards, delivering reliable isolation for commercial and light-industrial power-distribution applications. This 3‑pole assembly is rated up to 600 V AC and 100 A, with a 75 HP maximum horsepower rating and a 200 kA short‑circuit interrupt capability to handle high fault currents. The kit is compatible with Square D QMB panelboards and switchgear distributions and is designed to accept Class R fuses to provide standard protection. When installed in a QMB system, it enables safe feeder switching and selective protection without compromising reliability or performance.