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Square D QMB3603JT - Fusible Safety Switch 600V/30A (3-Pole, 200kA AIC)

Square D
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Square D QMB3603JT is a panel-mounted fusible safety switch designed for industrial power distribution protection, featuring a 600V AC rating and 30A current capacity in a robust 38 lb NEMA 1 enclosure. Its dual/twin configuration with three poles provides 200kA interrupting capacity at 480V, constructed with Class J fuses for high-fault protection. The switch complies with industrial safety standards and is compatible with ED frames, engineered for three-phase systems requiring reliable circuit isolation. Typical applications include motor control centers, HVAC systems, and heavy machinery power distribution panels where fused disconnect protection is critical.

Key Features & Specifications
  • Type: QMB Saflex fusible safety switch with panel mount design
  • Voltage Rating: 600V AC
  • Current Rating: 30A
  • Configuration: Dual/Twin
  • Poles: 3
  • Phase: 3
  • AIC Rating: 200kA@480V
  • Fuse Class: J
  • NEMA Rating: 1
  • Compatible Frames: ED
  • Switch Style: Fusible
  • Weight: 38 lb
  • Standards: Industrial safety compliance
  • Applications: Motor control centers, industrial power distribution, HVAC systems