Square D QMB3240M - Fusible Safety Switch 400A@240V (200kA AIC 3-Pole)
Square D QMB3240M Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMB3240M - Fusible Safety Switch 400A@240V (200kA AIC 3-Pole)
Square D QMB3240M Panel Mount Switch (Fusible) - Essential Electric Supply

Square D QMB3240M - Fusible Safety Switch 400A@240V (200kA AIC 3-Pole)

Square D
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Square D QMB3240M is a fusible safety switch designed for industrial power distribution systems requiring high fault current protection. This 3-pole panel-mount switch features a 240V AC voltage rating and 400A current capacity with a 200kA interrupting rating at 240V for robust circuit protection. The 65 lb NEMA 1-rated enclosure houses R-class fuses in a single-configuration design compatible with HHED frames. UL-listed and compliant with industrial safety standards, it's engineered for three-phase applications in manufacturing plants, data centers, and heavy machinery installations.

Key Features & Specifications
  • Type: QMB Saflex fusible safety switch, panel mount
  • Voltage Rating: 240V AC
  • Current Rating: 400A
  • Dimensions: Compatible with HHED frames
  • Standards: UL listed, NEMA 1
  • Applications: Industrial power distribution, manufacturing facilities
  • Switch Type: Fusible
  • Configuration: Single
  • Poles: 3
  • AIC rating: 200kA@240V
  • Phase: 3
  • Fuse Class: R
  • Weight: 65 lb