American/Federal Pacific QMQB1122R is a panel-mounted fusible safety switch designed for industrial circuit protection and isolation. The unit operates at 240V AC with a 100A current rating and features a dual/twin configuration with 2 poles for comprehensive circuit control. Constructed with a NEMA 1 enclosure weighing 35 lb, this robust switch provides reliable performance in demanding environments while meeting industry standards for safety and durability. It is engineered for single-phase electrical systems requiring high interrupting capacity protection, making it suitable for industrial power distribution applications where equipment isolation and fuse protection are critical.