Square D QMB323J - Fusible Safety Switch 3-Pole (100A @ 240V 200kA AIC)
Square D QMB323J Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMB323J - Fusible Safety Switch 3-Pole (100A @ 240V 200kA AIC)
Square D QMB323J Panel Mount Switch (Fusible) - Essential Electric Supply

Square D QMB323J - Fusible Safety Switch 3-Pole (100A @ 240V 200kA AIC)

Square D
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Square D QMB323J is a fusible safety switch designed for industrial power distribution systems requiring high fault current protection. This 3-pole panel-mounted switch features a 240V AC voltage rating and 100A current capacity with a 200kA interrupting rating at 240V for reliable circuit protection. The rugged NEMA 1 enclosure houses Class J fuses in a single-configuration design compatible with HHED frames, weighing 30 lb for stable panel integration. UL-listed and compliant with industrial safety standards, it's engineered for three-phase applications in manufacturing facilities, data centers, and heavy machinery power control.

Key Features & Specifications
  • Type: Fusible safety switch with Class J fuse protection
  • Voltage Rating: 240V AC
  • Current Rating: 100A
  • Configuration: Single
  • Poles: 3
  • Phase: 3
  • AIC Rating: 200kA@240V
  • Fuse Class: J
  • NEMA Rating: 1
  • Compatible Frames: HHED
  • Switch Style: Fusible
  • Weight: 30 lb
  • Standards: UL listed
  • Applications: Industrial power distribution, motor control centers, panelboards