Westinghouse WHFN321 - 30A, 240V, 3-Pole, Fused Disconnect Switch

The Westinghouse WHFN321 delivers reliable, code‑friendly electrical isolation for demanding industrial and commercial environments. This 30A, 240V, 3‑pole fused disconnect switch is engineered to safeguard maintenance teams and keep equipment protected during service work, startup, and fault conditions.

Why the WHFN321 stands out

• Three‑pole isolation in one panel: Simultaneously disconnects all live conductors, simplifying safe maintenance and reducing the risk of partial energization.
• Fused protection: Built‑in fusing provides an additional layer of fault interruption, helping to shield downstream equipment and wiring from short circuits and overload events.
• NEMA 4 enclosure: Rugged enclosure design resists rain, wind, dust, and splashing water, making it suitable for both indoor and outdoor installations in challenging environments.
• Lockout/Tagout compatibility: Specifically designed to support standard lockout/tagout procedures, so maintenance crews can safely secure circuits during servicing.
• Durable, long‑term performance: Built to withstand routine switching under load, delivering dependable disconnection and reduced downtime over years of use.

Ideal applications and use cases

Use the WHFN321 wherever you need a dedicated, isolated point to disconnect power for equipment or lines up to 30A at 240V. Common scenarios include:

• Motor-driven systems in manufacturing, conveyors, and material handling
• HVAC equipment, pumps, and cooling systems requiring safe service access
• Production lines and process equipment where orderly shutdowns and maintenance are essential

What you get with the Westinghouse WHFN321

• Amperage and voltage: 30A at 240V, suitable for many mid‑range industrial circuits
• Configuration: 3‑pole design for complete shutdown of all conductors
• Enclosure rating: NEMA 4, providing protection in varied environmental conditions
• Design purpose: Fused disconnect switch that supports safe, controlled isolation and protects electrical systems
• Brand and model: Westinghouse WHFN321 for trusted performance and availability

Practical guidance for installation and operation

To maximize safety and uptime, install the WHFN321 at a clearly labeled disconnect point within your electrical system. Pair it with proper lockout/tagout devices during maintenance, and ensure all personnel are trained on recognizing the fused disconnect as the primary isolation point. Regularly inspect fuse elements and the enclosure for signs of wear, corrosion, or moisture ingress, and follow your facility’s maintenance schedule to keep performance consistent.

The Westinghouse WHFN321 is a purposefully designed solution for professionals who require a dependable, easy‑to‑work‑with disconnect that enhances safety, supports standard maintenance practices, and stands up to demanding environments. Model WHFN321—where simple, effective isolation meets durable, long‑term reliability.