Eaton FAZ-B1-1N - 240 V, 1-Pole Circuit Breaker | AmpState

The Eaton FAZ-B1-1N is a 240 V, 1-pole molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built for steady performance, it combines compact design with precise protection to keep electrical systems safe and compliant.

• Space-efficient design: Compact molded case construction helps maximize panel space without sacrificing protection or reliability.
• Thermal-magnetic trip unit: Provides stable, repeatable protection by responding to both overloads (thermal) and short circuits (magnetic) for predictable behavior.
• OEM-compatible: Engineered to be compatible with matching OEM load centers and panelboards, simplifying upgrades and replacements.
• Versatile applications: Suitable for residential, commercial, and light industrial environments where reliable branch circuit protection is essential.
• Single-pole, 240 V: Efficiently protects individual circuits while operating within standard 240 V electrical systems.

Why the FAZ-B1-1N stands out

If you’re configuring or upgrading a panel, the FAZ-B1-1N offers a targeted, one-for-one replacement option that preserves panel layout and performance. The combination of a compact footprint and a robust thermal-magnetic trip mechanism means you experience fewer nuisance trips while still delivering fast short-circuit clearance when needed. This makes it a practical choice for electricians, facilities managers, and homeowners tackling panelboard maintenance or expansion projects.

Key specifications

• Manufacturer: Eaton
• Part number: FAZ-B1-1N
• Type: Thermal-magnetic molded case circuit breaker
• Voltage rating: 240 V
• Number of poles: 1
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Replacing a failed breaker in existing Eaton panelboards or load centers without reconfiguring the panel layout.
• Space-constrained installations where a compact MCCB solution preserves available enclosure room.
• Residential service panels, small commercial outlets, and light industrial circuits needing reliable single-pole protection.

Installation and compatibility tips

Before installation, verify that the FAZ-B1-1N is compatible with your panelboard or load center model and rating. Ensure proper alignment with the panel’s bus connection and follow local electrical codes during replacement or new installations. For ongoing reliability, pair this breaker with components from the same OEM family to maintain coordinated protection and consistent electrical performance.