Square D QMB2240 - Fusible Safety Switch 400A@240V (200kA AIC)
Square D QMB2240 Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMB2240 - Fusible Safety Switch 400A@240V (200kA AIC)
Square D QMB2240 Panel Mount Switch (Fusible) - Essential Electric Supply

Square D QMB2240 - Fusible Safety Switch 400A@240V (200kA AIC)

Square D
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Square D QMB2240 is a panel-mounted fusible safety switch designed for industrial circuit protection with a 200kA interrupting capacity at 240V. This single-configuration switch features a 400A current rating, 2-pole design, and R-class fuse compatibility for robust electrical isolation. The 65 lb NEMA 1-rated enclosure houses HED frame-compatible components rated for 1-phase 240V AC systems. UL-listed and compliant with industrial safety standards, it's engineered for heavy-duty applications including motor control centers and power distribution panels.

Key Features & Specifications
  • Type: QMB Saflex fusible safety switch
  • Voltage Rating: 240V AC
  • Current Rating: 400A
  • Configuration: Single
  • Poles: 2
  • AIC Rating: 200kA@240V
  • Fuse Class: R
  • Phase: 1
  • NEMA Rating: 1
  • Compatible Frames: HED
  • Switch Style: Fusible
  • Weight: 65 lb
  • Standards: UL listed
  • Applications: Motor control centers, power distribution