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Square D QMB266W - Fusible Safety Switch 600V/600A (200kA AIC @480V)

Square D
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Square D QMB266W is a panel-mounted fusible safety switch designed for industrial power distribution protection. This 600V/600A single-phase switch features a 200kA interrupting capacity at 480V and NEMA 1-rated enclosure for basic indoor applications. The rugged 70 lb unit utilizes Class R fuses in a 2-pole configuration, compatible with HED frames for standardized installations. UL-listed and CSA-certified, it meets industrial safety requirements for motor control centers and power distribution panels.

Key Features & Specifications
  • Type: Fusible safety switch, panel mount
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Configuration: Single
  • Poles: 2
  • AIC Rating: 200kA@480V
  • Fuse Class: R
  • NEMA Rating: 1
  • Phase: 1
  • Compatible Frames: HED
  • Weight: 70 lb
  • Standards: UL/CSA listed
  • Applications: Motor control centers, power distribution
Product Identification
  • GTIN: 00783643193451