Westinghouse | RFA3090 | Circuit Breaker | 90A | 3-Pole | 600V

Meet the Westinghouse RFA3090 Circuit Breaker — a purpose-built replacement designed for maintenance, retrofit, and replacement projects where precise specifications matter. With a 90A rating, 3-Pole configuration, and a 600V operating capability, this breaker delivers dependable protection for demanding 3‑phase circuits in commercial and light industrial panels.

Key specifications

• Amperage: 90A
• Poles: 3‑Pole
• Voltage: 600V
• Part number: RFA3090 — use this reference as the best indication of compatibility

Why this model stands out

This Westinghouse breaker is designed to slot into systems that require precise 3‑pole, 90‑amp protection at up to 600 volts. The RFA3090 designation isn’t just a label; it’s your best guide for compatibility with panels and assemblies that rely on the RFA family’s form factor and trip characteristics. When you’re maintaining or upgrading distribution equipment, choosing the exact part number helps minimize downtime and fitment surprises.

Ideal use cases

• Maintenance and service of existing 3‑phase circuits that demand robust overcurrent protection
• Retrofits where upgrading to a higher amperage or different voltage rating isn’t required
• Replacement of failed breakers in panels that accept RFA3090‑class components

Practical considerations for installation

Before ordering, confirm fit and ratings — the part number is the strongest compatibility signal for your panel. Check that your enclosure and bus configuration match a 3‑pole, 90A device rated for 600V. When replacing an old breaker, verify the interruption and trip characteristics align with your system’s safety and protection requirements. If in doubt, consult your panel’s documentation and use the RFA3090 as the primary compatibility reference.