Square D QMB323HD - Fusible Safety Switch 3-Pole 100A (240V AC, 200kA AIC)

Square D QMB323HD is a fusible safety switch designed for industrial power distribution protection. This 3-pole panel-mounted switch handles 240V AC systems with a 100A current rating and 200kA interrupting capacity, featuring a rugged NEMA 1-rated enclosure for indoor use. Constructed with R/H/K-class fuse compatibility and ED frame mounting, it meets stringent industrial safety standards for three-phase circuits. The 30 lb unit provides reliable circuit isolation in manufacturing plants, data centers, and heavy machinery applications.

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: ED
• Switch Style: Fusible
• Weight: 30 lb
• Standards: Industrial safety compliance
• Applications: Power distribution, manufacturing plants, data centers