Square D QMB223 - Fusible Safety Switch 240V/100A (200kA AIC @ 240V)

Square D QMB223 is a panel-mounted fusible safety switch designed for industrial circuit protection and isolation. This single-configuration switch features a 240V AC voltage rating with 100A current capacity and 200kA interrupting rating at 240V for robust fault protection. The NEMA 1-rated enclosure houses two poles with R, H, and K fuse class compatibility, constructed with a 30 lb steel frame for durability in demanding environments. Compliant with industrial safety standards, it integrates with HED series panelboards for electrical distribution systems. Typical applications include motor control centers, machinery disconnects, and main service entrance protection in commercial and industrial facilities.

Key Features & Specifications

• Type: Fusible safety switch, panel mount, QMB Series D2
• Voltage Rating: 240V AC
• Current Rating: 100A
• Configuration: Single
• Poles: 2
• AIC Rating: 200kA @ 240V
• Fuse Class: R, H, K compatible
• NEMA Rating: 1
• Phase: 1
• Weight: 30 lb
• Compatible Frames: HED series panelboards
• Standards: Industrial safety compliance
• Applications: Motor control centers, service entrances, machinery disconnects