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Square D QSF1053 - Fusible Safety Switch 600V AC 3-Pole (100A RK1/RK5 Compatible)

Zinsco
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Square D QSF1053 is a fusible safety switch designed for industrial power distribution systems requiring reliable circuit protection. This 600V AC-rated switch handles 100A current loads across its 3-pole configuration, constructed with durable panel-mount housing weighing 50 lb for robust operation. It complies with industry standards for RK1/RK5 fuse classes and integrates with ED-frame panels. The QSF Series switch is engineered for three-phase applications in manufacturing facilities, data centers, and heavy machinery installations where fusible disconnect protection is critical.

Key Features & Specifications
  • Type: Fusible safety switch, panel-mount, QSF Series
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Configuration: Single
  • Poles: 3
  • Phase: 3
  • Fuse Class: RK1, RK5
  • Compatible Frames: ED
  • Weight: 50 lb
  • Standards: Industrial-grade compliance
  • Applications: Power distribution, machinery control, industrial panels