Eaton FAZ-B30/3 30A 3-Pole 277 V Circuit Breaker

The Eaton FAZ-B30/3 is a robust 3-pole circuit breaker designed to protect three‑phase electrical distributions at 277 V. With a 30 A rating, it provides precise, reliable overcurrent protection for feeders, motors, and lighting circuits in demanding commercial environments where uptime and safety matter.

• Part Number: FAZ-B30/3
• Current rating: 30 A
• Poles: 3
• Voltage rating: 277 V
• Configuration: 3-pole for three-phase distribution

Why 277 V matters — In many commercial buildings, 277 V is the standard for lighting and certain equipment circuits. The FAZ-B30/3 is purpose-built for these systems, delivering dependable protection directly at the point where power distribution meets daily demand. This means quicker fault isolation, reduced risk of damage to motors and lighting ballasts, and improved system reliability overall.

Key benefits in real-world use —

• Three-phase protection ensures all conductors in a circuit trip together, minimizing the risk of partial faults and electrical shock hazards.
• Targeted 30 A protection aligns with typical feeders and small-to-medium loads inside commercial panels, helping prevent nuisance trips while safeguarding equipment.
• Compact, modular design fits standard panel boards and enclosures, making retrofits or new installations straightforward for electrical professionals.
• Consistent performance across 277 V distribution networks supports reliable operation of lighting, HVAC controls, and auxiliary equipment in busy facilities.

Who benefits most — facilities managers, electrical contractors, and maintenance teams responsible for commercial spaces with three-phase 277 V distribution. If your project involves protecting 3-phase feeders or lighting circuits in offices, retail centers, schools, or warehouses, the FAZ-B30/3 offers a dependable, manufacturer-backed solution designed for long-term reliability.

Practical installation guidance — verify the breaker is aligned with your Eaton distribution panel's rating and enclosure compatibility, ensure secure terminal connections, and follow standard torque and safety procedures during installation. For ongoing protection, pair with complementary Eaton devices in a coordinated protection strategy to simplify troubleshooting and maintenance.