Square D QMB328MW - Fusible Safety Switch 3P 1200A (200kA AIC @240V)

Square D QMB328MW is a fusible safety switch designed for industrial power distribution systems requiring high-current protection. This 3-pole panel-mounted switch features a 240V AC voltage rating with a 1200A current capacity and 200kA interrupting rating at 240V for robust short-circuit protection. The NEMA 1-rated enclosure houses R-class fuses in a single-configuration design compatible with ED frames, weighing 125 lb for stable installation. UL-listed and compliant with industrial safety standards, it serves heavy machinery, manufacturing plants, and commercial power distribution applications requiring reliable circuit isolation.

Key Features & Specifications

• Type: Fusible safety switch, panel-mounted, QMB Series E1-E2
• Voltage Rating: 240V AC
• Current Rating: 1200A
• Configuration: Single
• Poles: 3
• Phase: 3
• AIC Rating: 200kA@240V
• Fuse Class: R
• NEMA Rating: 1
• Compatible Frames: ED
• Weight: 125 lb
• Standards: UL-listed, industrial safety compliance
• Applications: Heavy industrial power distribution, manufacturing plants, commercial electrical systems