Eaton FAZ-B63/1-SP 63A 1-Pole 277 V Circuit Breaker

Eaton FAZ-B63/1-SP 63A 1-Pole 277 V Circuit Breaker is a purpose-built overcurrent protector designed for single‑phase 277‑volt circuits in commercial and light industrial installations. With a 63 A current rating and a single pole, this device integrates seamlessly into Eaton FAZ-series panelboards to deliver reliable circuit protection where it matters most.

Built for compatibility and straightforward replacement, this 1‑pole 277V breaker is the right choice when you need precise protection for individual branch circuits in spaces that use 277V distribution. The 277 V rating targets common commercial lighting and other 277V loads, helping you maintain safe, consistent power distribution across your facility.

Key features and benefits

• 63 A, 1-Pole configuration for dedicated single‑phase circuits.
• 277 V rating tailored for 277V lighting and power runs in commercial environments.
• Part Number FAZ-B63/1-SP ensures exact fit and easy reordering.
• FAZ-series compatibility designed to work with Eaton panelboards and distribution products for straightforward upgrades or replacements.
• Drop-in replacement potential to maintain consistent performance within existing electrical systems.

Ideal use cases

Protect a single lighting circuit in a 277V environment, dedicate a power run for a workstation or equipment rack, or perform a precise replacement in an existing Eaton FAZ panel. This model is especially valuable in spaces where 277V distribution is standard and dependable protection is essential to minimize downtime during upgrades.

Practical installation guidance

Ensure your panel supports FAZ-series breakers and that a 63 A, 1‑pole, 277V device matches the circuit requirements. Follow standard safety practices during installation, and keep a spare FAZ-B63/1-SP on hand to simplify future expansions or replacements and reduce service interruptions.