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Square D QMB267MW - Fusible Safety Switch 800A (600V AC, 200kA AIC)

Square D
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Square D QMB267MW is a fusible safety switch designed for high-current industrial power distribution systems. This panel-mounted unit features a 600V AC voltage rating and 800A current capacity with 200kA interrupting rating at 480V for robust circuit protection. The NEMA 1-rated enclosure houses a single-configuration, 2-pole switch mechanism compatible with ED frames, constructed with Class R fuse protection. It meets industry standards for industrial power control applications including motor control centers and heavy machinery power distribution.

Key Features & Specifications
  • Type: Fusible safety switch, panel mount
  • Voltage Rating: 600V AC
  • Current Rating: 800A
  • Configuration: Single
  • Poles: 2
  • AIC Rating: 200kA@480V
  • Fuse Class: R
  • NEMA Rating: 1
  • Phase: 1
  • Compatible Frames: ED
  • Weight: 125 lb
  • Family: QMB Series E1-E2