Square D QMJ366W - Fusible Safety Switch 600A 600V (200kA AIC @480V)
Square D QMJ366W Panel Mount Switch (Fusible) - Essential Electric Supply
Square D QMJ366W - Fusible Safety Switch 600A 600V (200kA AIC @480V)
Square D QMJ366W Panel Mount Switch (Fusible) - Essential Electric Supply

Square D QMJ366W - Fusible Safety Switch 600A 600V (200kA AIC @480V)

Square D
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Square D QMJ366W is a fusible safety switch designed for industrial power distribution systems requiring high fault current protection. This 600V AC, 600A rated switch features a rugged NEMA 1 enclosure with three poles in a single configuration, compatible with ED frames for seamless panel integration. Constructed with Class J fuses, it delivers 200kA interrupting capacity at 480V for reliable short-circuit protection in demanding environments. UL-listed and compliant with industrial safety standards, this switch is engineered for three-phase applications including motor control centers, manufacturing plants, and heavy machinery power distribution.

Key Features & Specifications
  • Type: Fusible safety switch with Class J fuse protection
  • Voltage Rating: 600V AC
  • Current Rating: 600A
  • Configuration: Single
  • Poles: 3
  • Phase: 3
  • AIC rating: 200kA@480V
  • Fuse Class: J
  • Nema Rating: 1
  • Switch Style: Fusible
  • Compatible Frames: ED
  • Weight: 30 lb
  • Standards: UL listed, industrial safety compliant
  • Applications: Motor control centers, industrial power distribution, manufacturing plants