Eaton FAZ-B63-3 - 63 A, 480 V, 3-Pole Circuit Breaker | AmpState

The Eaton FAZ-B63-3 stands out as a compact, reliable solution for protecting electrical systems in panelboards and loadcenters. With a 63A rating, 480V capability, and a 3-pole design, this molded case circuit breaker delivers dependable branch circuit overcurrent and short-circuit protection for commercial, residential, and light industrial applications. Its thermal-magnetic trip unit provides stable, repeatable protection, helping electrical systems stay safe and uninterrupted even during fault conditions.

Key features that matter in the field

• 63A, 480V, 3-pole configuration — ideal for three-phase, medium-voltage environments where coordinated protection is essential.
• Molded case design — a compact footprint that maximizes panel space without sacrificing performance.
• Thermal-magnetic trip unit — offers precise overload protection combined with fast short-circuit interruption for rapid fault clearance.
• OEM compatibility — engineered to be fully compatible with matching Eaton OEM loadcenters and panelboards for seamless installation and reliable operation.
• Versatile installation — suitable for residential, commercial, and light industrial settings where robust, dependable protection is required.

Technical snapshot

• Manufacturer: Eaton
• Part Number: FAZ-B63-3
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 63A
• Voltage Rating: 480V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Who benefits from the FAZ-B63-3

Electricians and facilities managers assembling or upgrading panelboards or loadcenters will appreciate the FAZ-B63-3’s space-efficient, field-proven design. It’s especially well-suited for three-phase distribution, motor control centers, and subpanel protection in commercial buildings or light industrial environments where reliability and compatibility are non-negotiable.

Practical use cases and scenarios

• Protect a three-phase feeder in a commercial office building's electrical distribution board.
• Upgrade or replace aging breakers in a panelboard where 480V service is used for equipment and machinery.
• Install in new construction projects that require compact, reliable protection with OEM-compatible components.

Why this matters for your project

The combination of a compact molded case design and a thermal-magnetic trip unit means you gain predictable protection performance while optimizing panel layout. Coupled with Eaton’s compatibility with OEM loadcenters, the FAZ-B63-3 reduces installation risk and streamlines maintenance, ensuring long-term reliability in demanding environments.