Eaton FAZ-K40/2 - 40 A, 480 V, 2-Pole Circuit Breaker | AmpState

Eaton FAZ-K40/2 is a compact, 40A, 480V, 2-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection within panelboards and loadcenters. Built to maximize space without sacrificing protection, this device helps you keep panels tidy while delivering reliable performance when it matters most.

Key features that matter in real-world installations:

• Compact molded case design maximizes usable panel space, enabling more efficient layouts in limited or crowded panels.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding accurately to overloads and short circuits, helping prevent nuisance trips and protect sensitive equipment.
• 2-pole, 40A, 480V rating delivers targeted protection for multi-wire branch circuits and higher-voltage load centers common in commercial and light industrial settings.
• OEM-compatible with matching Eaton panelboards and loadcenters, simplifying replacement and ensuring consistent performance with existing systems.
• Versatile applications suited for residential, commercial, and light industrial environments where reliable circuit protection is essential.

What this means for you

If you’re upgrading or maintaining a panel, the FAZ-K40/2 provides predictable protection for critical circuits. Its compact form frees up space for future add-ons, while the thermal-magnetic trip unit reduces the risk of unexpected outages on vital equipment. By matching Eaton’s OEM families, it also keeps your protective coordination clean and straightforward, minimizing compatibility concerns during service or replacement.

Use cases and ideal scenarios

• New installations in panelboards that require a reliable 40A, 480V protection solution with a small footprint.
• Repairs or replacements in commercial loadcenters where OEM compatibility ensures seamless integration with existing bus configurations.
• Residential or light industrial circuits that demand consistent trip behavior and straightforward maintenance.

Specifications at a glance

• Manufacturer: Eaton
• Part Number: FAZ-K40/2
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 480V
• Number of Poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

Designed for dependable performance in panelboards and loadcenters, the Eaton FAZ-K40/2 is a thoughtful choice for professionals who value space efficiency, precise protection, and OEM compatibility. Whether upgrading legacy panels or equipping new builds, this breaker delivers the protection you rely on with the simplicity you deserve.