Square D QMB323T - Fusible Safety Switch 3-Pole 100A (200kA AIC @240V)

Square D QMB323T is a fusible safety switch designed for industrial power distribution protection. This 3-pole panel-mounted switch features a 240V AC rating with 100A current capacity and 200kA interrupting rating at 240V, housed in a NEMA 1-rated enclosure for basic indoor protection. The dual/twin configuration with R/H/K fuse class compatibility ensures reliable circuit isolation in demanding environments. UL-listed and compliant with industrial safety standards, it's engineered for motor control centers, HVAC systems, and heavy machinery applications where high fault current protection is critical.

Key Features & Specifications

• Type: Fusible safety switch, panel mount, QMB Series D2
• Voltage Rating: 240V AC
• Current Rating: 100A
• Configuration: Dual/Twin
• Poles: 3
• Phase: 3
• AIC Rating: 200kA @ 240V
• Fuse Class: R, H, K compatible
• NEMA Rating: 1 (indoor use)
• Compatible Frames: HHED
• Weight: 30 lb
• Standards: UL listed, industrial safety compliant
• Applications: Motor control centers, industrial power distribution, heavy machinery