Square D QMB327WT3 - Fusible Safety Switch, 800A 3-Pole
Square D QMB327WT3 Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMB327WT3 - Fusible Safety Switch, 800A 3-Pole
Square D QMB327WT3 Panel Mount Switch (Fusible) - Essential Electric Supply

Square D QMB327WT3 - Fusible Safety Switch, 800A 3-Pole

Square D
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The Square D QMB327WT3 is a panel-mounted, fusible safety switch designed to provide reliable circuit protection and isolation for industrial power distribution. It is rated for 240V AC systems and handles a continuous current of 800A across its three poles, featuring a high 200kA interrupting capacity at its rated voltage for robust fault protection. The switch is constructed with a compact form factor, measuring 78.49 mm in depth by 112.78 mm in width, and is built to comply with NEMA KS1 and NEMA 1 enclosure standards for appropriate industrial environments. This certified design ensures safe operation within distribution or meter boards, making it suitable for managing and isolating three-phase power circuits in commercial and industrial facilities.

Key Features & Specifications
  • Type: Fusible Safety Switch, Panel Mount, QMB Series E1-E2
  • Voltage Rating: 240V AC
  • Current Rating: 800A
  • Dimensions: 78.49 mm (Depth) x 112.78 mm (Width)
  • Weight: 106.001 lb
  • Standards: Certified to NEMA KS1, NEMA 1 Enclosure Rating
  • Applications: Industrial power distribution and isolation in distribution boards or meter boards
  • Switch Type: Fusible
  • Configuration: Single
  • Poles: 3
  • Phase: 3-Phase
  • AIC Rating: 200kA @ 240V
  • Fuse Class: T
  • Compatible Frames: ED Frame
  • Panel Type: Distribution board, Meter board
  • Country of Origin: United States


Product Identification
  • UPC: 785901050971
  • GTIN: 00785901050971