Westinghouse HF463N - 100A, 600V, Fusible, Safety Switch

Meet the Westinghouse HF463N — a compact, robust fusible safety switch engineered for reliable on/off isolation and precise overcurrent protection in demanding industrial and commercial settings. With a 100A current rating and a 600V maximum, this unit is built to safeguard motors, panelboards, and branch circuits while helping maintenance crews work safer and smarter.

Key advantages of the HF463N

• Fusible protection delivers targeted current interruption, helping protect equipment and wiring from fault conditions.
• 100A, 600V rating supports a wide range of load profiles found in industrial environments without compromising performance.
• Compact, maintainable design enables installation in tight electrical rooms and panel interiors while simplifying routine service and fuse replacements.
• Reliable isolation ensures a clear open/closed state for safe maintenance and safe startup sequencing.

Ideal applications and use cases

• Motor disconnects: quickly isolate motors for maintenance or troubleshooting while protecting downstream circuits.
• Panelboards: integrate fusible protection at the source of a branch or subfeed to manage fault currents effectively.
• Branch circuit protection: provide a dedicated fusible shutoff for critical loads in both new builds and retrofit projects.

Why operators and electricians choose this model

The HF463N combines Westinghouse reliability with a streamlined, space-saving footprint, making it a practical choice when a dedicated fusible switch is required without expanding enclosure space. Its fusible design is a simple, straightforward path to overcurrent protection, helping facilities stay compliant with protection schemes while keeping downtime to a minimum during fuse changes.

Technical snapshot

• Model: HF463N
• Amperage: 100A
• Voltage: 600V
• Protection type: Fusible

Who will benefit

Facility managers, electrical contractors, and industrial maintenance teams responsible for motor control centers, service entrances, and critical branch circuits will find the HF463N to be a dependable, space-efficient solution that supports safer, faster maintenance and reliable protection across commercial and light-industrial environments.

Practical considerations and care

When integrating the HF463N, ensure compatible fuse elements are selected for the connected load and that installation follows applicable electrical codes. Regular inspection of the switch and associated fusible components during scheduled maintenance helps maintain effective protection and operational readiness.