Westinghouse HFN323 Heavy Duty Safety Switch, 100 Amp, 240V, NEMA 1

The Westinghouse HFN323 is a heavy-duty, fusible safety switch designed for reliable circuit disconnection in industrial and commercial electrical systems. This 3-pole switch is rated for 100 amps at 240 volts AC and 250 volts DC, with horsepower ratings of 30 HP at 240V AC (standard) and 50 HP maximum. It features a NEMA 1 indoor enclosure, providing basic protection against contact with live parts in non-hazardous environments. Key applications include motor control, equipment isolation, and service entrance disconnects in manufacturing plants, warehouses, and building systems. Advantages include robust construction for high durability, easy fuse replacement, and a visible blade mechanism for safe operation verification. Compared to similar products like those from Eaton or Square D, the HFN323 offers legacy Westinghouse reliability with straightforward installation, though it may lack modern smart features. Drawbacks include its age (legacy model), potential obsolescence for parts, and limited to indoor use without weatherproofing. The unit appears used with minor cosmetic wear but functional internals, including intact lugs and handle. No parent/child assets noted. Estimated dimensions based on visual analysis and standard datasheets for similar models. For resources, refer to Eaton's legacy Westinghouse documentation: Installation Instructions (summary: covers wiring, mounting, and fuse specs; link: https://www.eaton.com/content/dam/eaton/products/low-voltage-power-distribution-controls-systems/safety-switches/heavy-duty/ib140001en.pdf). Model decoder: HFN indicates heavy-duty fusible neutral, 3-pole, 100A.