Eaton FAZ-B7/2-NA 7A 2-Pole 277 V Circuit Breaker Potential Transformer

Meet the Eaton FAZ-B7/2-NA — a compact, reliable 2-pole circuit breaker engineered for commercial and light-industrial electrical panels. With a 7 A current rating and a 277 V nominal voltage, this unit is designed to safeguard smaller branch circuits while coordinating effectively within larger distribution systems. Its designation as a Potential Transformer-ready breaker means it’s well-suited for metering and protection setups that rely on accurate voltage sensing and monitoring signals.

Key features that set the FAZ-B7/2-NA apart

• 2-pole protection — interrupts both live conductors in a 277 V circuit for complete, simultaneous isolation and safer maintenance.
• 7 A current rating — precisely tuned to protect smaller control and lighting circuits without nuisance tripping.
• 277 V nominal voltage — optimized for commercial/industrial environments where 277 V distribution is common (such as lighting and certain branch circuits).
• Part number clarity — FAZ-B7/2-NA ensures quick identification and seamless replacement within Eaton-based systems.
• Potential Transformer compatibility — designed to support measurement and protection workflows that rely on voltage sensing, enabling smoother integration with monitoring relays and metering equipment.
• dependable Eaton engineering — built to integrate with other Eaton components and panels, delivering consistent performance in daily operations.

Ideal applications

• 277 V lighting circuits in commercial spaces such as offices, retail centers, and warehouses.
• Small control circuits for HVAC, fans, and vending systems that require reliable overcurrent protection.
• Panelboard configurations where multiple 277 V branches must be isolated quickly and safely.
• Protection schemes that benefit from potential transformer signaling to feed metering or protection relays.

Why this breaker is the right choice for your panel

The FAZ-B7/2-NA isn’t just a generic breaker. Its 2-pole design ensures you can safely disconnect both conductors in a 277 V circuit, reducing the risk of backfeed and improving maintenance safety. The 7 A rating makes it ideal for protecting mid-sized control circuits and lighting runs without over‑tripping under normal load variations. Plus, its potential transformer compatibility gives you a straightforward path to integrate with modern protection and monitoring systems, lowering wiring complexity and improving diagnostic capabilities.

Stocking the Eaton FAZ-B7/2-NA means you’re prepared for reliable protection in 277 V environments, with a unit that aligns with Eaton’s ecosystem and supports future metering and monitoring needs. If you’re upgrading or stocking parts for commercial electrical installs, this 7 A, 2-pole, 277 V breaker offers precise protection, easy replacement, and thoughtful integration features that translate to real-world reliability and peace of mind.