Square D QSF1053A - Fusible Safety Switch 600V AC 3P (100A RK1/RK5)

Square D QSF1053A is a panel-mounted fusible safety switch designed for industrial power distribution systems requiring reliable circuit protection. The unit features a 600V AC rating with 100A current capacity across three poles, housed in a rugged 50 lb enclosure constructed for durability in demanding environments. It complies with industry standards for RK1/RK5 fuse classes and integrates with HED-compatible frames. Typical applications include motor control centers, manufacturing equipment, and heavy machinery requiring three-phase power distribution with fused isolation capabilities.

Key Features & Specifications

• Type: QSF Series fusible safety switch, panel mount
• Voltage Rating: 600V AC
• Current Rating: 100A
• Configuration: Single
• Poles: 3
• Phase: 3
• Fuse Class: RK1, RK5
• Compatible Frames: HED
• Switch Style: Fusible
• Weight: 50 lb
• Standards: Industrial safety switch requirements
• Applications: Motor control centers, industrial power distribution