Eaton FAZ-B40-3 - 40 A, 480 V, 3-Pole Circuit Breaker | AmpState

The Eaton FAZ-B40-3 is a 40A, 480V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and loadcenters. Built to safeguard electrical systems against overcurrent and short circuits, it fits seamlessly into professional-grade installations where reliability matters most.

Why the FAZ-B40-3 stands out

• Compact molded case design frees up precious panel space, helping you maximize enclosure capacity without compromising protection.
• Thermal-magnetic trip unit provides stable, repeatable protection performance, reducing nuisance trips while reacting quickly to short circuits.
• OEM-compatible installation is designed for straightforward integration with matching OEM loadcenters and panelboards, ensuring plug-in compatibility and consistent operation.
• Versatile across environments suitable for residential, commercial, and light industrial applications, covering a wide range of panel configurations and load profiles.

Key specifications at a glance

• Manufacturer: Eaton
• Part Number: FAZ-B40-3
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 480V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

In commercial settings, the FAZ-B40-3 protects feeders and distribution circuits in 480V three-phase panels, helping to prevent equipment damage from overloads and faults. In light industrial environments, it serves as a reliable line-stage protection for motor and control circuits within small-to-medium panelboards. For residential-commercial hybrids or larger residential projects with three-phase services, this breaker provides consistent protection without sacrificing panel organization or space.

How it integrates with your system

• Plug-in compatibility with matching OEM loadcenters and panelboards ensures predictable trip characteristics and straightforward replacement.
• Three-pole design supports typical 480V three-phase electrical systems, making it suitable for a wide range of equipment and distribution configurations.
• Designed to deliver prompt short-circuit interruption while maintaining stability during normal operation, contributing to safer, more reliable electrical installations.

Value in practice

Choosing the FAZ-B40-3 means pairing Eaton’s trusted protection technology with a compact footprint that respects panel density. It’s a practical, long-term solution for safeguarding circuits in panelboards and loadcenters where dependable overcurrent and short-circuit protection is non-negotiable. Whether upgrading an existing panel or specifying components for a new build, this 3-pole breaker delivers clear protection you can trust in demanding 480V environments.