Square D QMB221T - Fusible Safety Switch 240V 30A (200kA AIC @240V)
Square D QMB221T Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMB221T - Fusible Safety Switch 240V 30A (200kA AIC @240V)
Square D QMB221T Panel Mount Switch (Fusible) - Essential Electric Supply

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

Square D
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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