Square D QSFT1033R - Fusible Safety Switch 240V 100A (3-Pole RK1/RK5 Class)

Square D QSFT1033R is a fusible safety switch designed for industrial power distribution and circuit protection. This panel-mounted unit features a 240V AC voltage rating and 100A current capacity in a robust 3-phase configuration with dual/twin fuse compatibility (RK1/RK5 class). The 80 lb enclosure houses three poles in an ED frame-compatible design, meeting industry standards for heavy-duty electrical isolation. Its fusible switch mechanism provides reliable overload protection in manufacturing plants, commercial buildings, and utility applications where high-current disconnects are required.

Key Features & Specifications

• Type: Fusible safety switch, panel mount, QSF series
• Voltage Rating: 240V AC
• Current Rating: 100A
• Configuration: Dual/Twin
• Poles: 3
• Phase: 3
• Fuse Class: RK1, RK5
• Compatible Frames: ED
• Switch Style: Fusible
• Weight: 80 lb
• Standards: Industrial electrical safety compliance
• Applications: Power distribution, motor control centers, industrial disconnects