Square D QMB323TD - Fusible Safety Switch 100A 3P (240V AC)
Square D QMB323TD Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMB323TD - Fusible Safety Switch 100A 3P (240V AC)
Square D QMB323TD Panel Mount Switch (Fusible) - Essential Electric Supply

Square D QMB323TD - Fusible Safety Switch 100A 3P (240V AC)

Square D
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Square D QMB323TD is a panel-mounted fusible safety switch designed for providing reliable circuit protection and isolation in industrial three-phase power distribution systems. It features a 240V AC voltage rating and a 100A current rating, housed in a robust enclosure measuring 152 mm H x 112.78 mm W x 78.49 mm D with a weight of 23.83 lb. The switch is certified to NEMA KS1 standards and carries a NEMA 1 rating, ensuring suitability for indoor applications where protection against falling dirt is required. Its 200kA interrupting rating at 240V and compatibility with Class R, H, K, T, and J fuses make it ideal for service entrance, feeder, and branch circuit protection in commercial and industrial facilities.

Key Features & Specifications
  • Type: Panel-mounted, fusible safety switch, dual/twin configuration
  • Voltage Rating: 240V AC
  • Current Rating: 100A
  • Dimensions: 152 mm H x 112.78 mm W x 78.49 mm D (5.98 in x 4.44 in x 3.09 in)
  • Weight: 23.83 lb
  • Standards: Certified to NEMA KS1; NEMA 1 Enclosure Rating
  • Applications: Service entrance, feeder, and branch circuit protection in industrial three-phase systems
  • Switch Type: Fusible
  • Configuration: Dual/Twin
  • Poles: 3
  • Phase: 3
  • AIC Rating: 200kA @ 240V
  • Fuse Class: Compatible with R, H, K, T, J
  • Compatible Frames: ED
  • Family: QMB Series E1-E2
  • Country of Origin: United States


Product Identification
  • UPC: 785901496021
  • GTIN: 00785901496021