Square D QMB321TJ - Fusible Safety Switch 30A 3-Pole (200kA AIC @240V)
Square D QMB321TJ Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMB321TJ - Fusible Safety Switch 30A 3-Pole (200kA AIC @240V)
Square D QMB321TJ Panel Mount Switch (Fusible) - Essential Electric Supply

Square D QMB321TJ - Fusible Safety Switch 30A 3-Pole (200kA AIC @240V)

Square D
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Square D QMB321TJ is a fusible safety switch designed for industrial power distribution protection. This 3-pole, 30A panel-mount switch features a 240V AC rating with a 200kA interrupting capacity at 240V, housed in a NEMA 1-rated enclosure for indoor use. The dual/twin configuration with Class J fuses provides reliable circuit isolation in ED frame-compatible installations. UL-listed and compliant with industrial safety standards, it's engineered for three-phase motor control and heavy equipment power management applications.

Key Features & Specifications
  • Type: Fusible safety switch, panel mount, QMB Series D2
  • Voltage Rating: 240V AC
  • Current Rating: 30A
  • Configuration: Dual/Twin
  • Poles: 3
  • Phase: 3-phase
  • AIC Rating: 200kA@240V
  • Fuse Class: J
  • NEMA Rating: 1
  • Compatible Frames: ED
  • Switch Style: Fusible
  • Weight: 30 lb
  • Standards: UL listed
  • Applications: Industrial power distribution, motor control centers