Square D QMB221T - Fusible Safety Switch 240V 30A (200kA AIC @240V)

Square D QMB221T is a fusible panel-mounted safety switch designed for industrial circuit protection and isolation. This 240V AC, 30A dual-pole switch features a 200kA interrupting capacity at 240V and complies with NEMA 1 standards for indoor use. The rugged 30 lb steel enclosure houses R, H, and K-class fuse compatibility, with a twin-configuration design for secure power distribution. UL-listed and rated for 1-phase systems, it integrates with HED frames for panel installations. Typical applications include motor control centers, machinery disconnects, and electrical service entrance equipment requiring high-fault protection.

Key Features & Specifications

• Type: Fusible safety switch, panel-mounted, steel enclosure
• Voltage Rating: 240V AC
• Current Rating: 30A
• Dimensions: NEMA 1 standard enclosure
• Standards: UL listed, NEMA 1 compliant
• Applications: Motor controls, service entrances, industrial disconnects
• Switch Type: Fusible
• Configuration: Dual/Twin
• Poles: 2
• AIC rating: 200kA@240V
• Phase: 1
• Fuse Class: R, H, K compatible
• Weight: 30 lb
• Compatible Frames: HED series