Westinghouse | HFD3090W | Circuit Breaker | 90A | 3-Pole | 600V

Westinghouse HFD3090W delivers reliable circuit protection for three‑phase, 600V systems with a 90A rating. Engineered for maintenance, retrofit, and replacement projects, this 3‑pole breaker provides precise protection where uptime and safety matter most in commercial and light industrial environments.

Why this matters: In three‑phase panels, selecting the right amperage and pole configuration is essential to shield wiring and motors from overloads and faults. The HFD3090W’s 90A capacity and 3‑pole design ensure dependable protection across all three phases, helping to prevent costly downtime and equipment damage.

Key specifications

• Amperage: 90 A
• Poles: 3‑Pole
• Voltage rating: 600 V
• Part number: HFD3090W (best reference for compatibility)

Ideal use cases

Perfect for maintenance and service work on existing panels, retrofits to modernize protection for 3‑phase equipment, or as a reliable replacement when a breaker fails in a 600V, three‑phase distribution system. Suitable for applications such as motor controls, conveyors, pumps, and panel boards where consistent trip performance and quick replacement are critical.

Fit, ratings, and compatibility

Before ordering, confirm fit and ratings for your specific panel. Rely on the HFD3090W part number as the primary reference to ensure matching sizing, trip characteristics, and mounting style. If your panel’s documentation references this model, you’re equipped for a seamless swap with minimal downtime.

Why choose Westinghouse for this job

Westinghouse circuit breakers are built for dependable protection in demanding electrical environments. The HFD3090W offers a straightforward, spec‑matched solution for three‑phase circuits at 600V, making it an informed choice for upgrades, repairs, or new installations where compatibility and reliability matter most.

Practical tips for installation and operation

• Use load calculations to confirm that 90 A is appropriate for the circuit to avoid nuisance trips.
• Verify wiring gauge and terminal torque requirements with your panel’s documentation before installation.
• Always disconnect power and follow safe lockout/tagout procedures when servicing or replacing breakers.
• Keep a spare HFD3090W on hand for rapid replacement in critical 3‑phase circuits.