Square D QMB323H - Fusible Safety Switch 3P 100A (240V AC, 200kA AIC)

Square D QMB323H is a fusible safety switch designed for industrial power distribution protection. This 3-pole panel-mounted switch features a 240V AC voltage rating and 100A current capacity with a 200kA interrupting rating at 240V for robust short-circuit protection. The NEMA 1-rated enclosure houses R, H, and K-class fuse compatibility within its 30 lb steel construction, meeting industrial durability standards. Certified for three-phase power systems, it integrates with HHED frames for motor control and feeder circuit applications in manufacturing and heavy equipment environments.

Key Features & Specifications

• Type: Fusible safety switch, panel mount, QMB Series D2
• Voltage Rating: 240V AC
• Current Rating: 100A
• Configuration: Single
• Poles: 3
• Phase: 3
• AIC Rating: 200kA@240V
• Fuse Class: R, H, K
• NEMA Rating: 1
• Compatible Frames: HHED
• Switch Style: Fusible
• Weight: 30 lb
• Standards: Industrial safety compliance
• Applications: Motor control centers, feeder circuits, industrial power distribution