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Square D QMB265MW - Fusible Safety Switch 400A@600V (200kA AIC)

Square D
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Square D QMB265MW is a panel-mounted fusible safety switch designed for industrial power distribution protection. This 600V AC-rated switch handles 400A continuous current with a 200kA interrupting capacity at 480V, featuring a rugged NEMA 1 enclosure and Class R fuse compatibility. The single-configuration, 2-pole design weighs 70 lb and integrates with HED-series frames for reliable circuit isolation. UL-listed and compliant with industrial safety standards, it's engineered for motor control centers, switchgear, and heavy-duty power management applications.

Key Features & Specifications
  • Type: Fusible safety switch, panel mount, QMB Series E1-E2
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Configuration: Single
  • Poles: 2
  • AIC Rating: 200kA@480V
  • Fuse Class: R
  • NEMA Rating: 1
  • Phase: 1
  • Compatible Frames: HED
  • Weight: 70 lb
  • Standards: UL listed
  • Applications: Motor control centers, industrial power distribution