Square D | FHL16080 | Circuit Breaker | 1-Pole | 277V

Square D delivers dependable protection with the FHL16080 Circuit Breaker, a 1-Pole device designed for 277V circuits. Built for maintenance, retrofit, and replacement projects, this breaker ensures you can restore and maintain safe, reliable power in commercial and industrial panels where precise specifications matter.

• Poles: 1-Pole
• Voltage rating: 277V
• Reference: Part number FHL16080 is the best compatibility reference for matching specs
• Fit and compatibility: Confirm fit and ratings before ordering to ensure a seamless swap into your panel

Why choose this Square D breaker? It’s engineered to pair with existing Square D panels and replacement schemes where exact 1-pole, 277V specifications are required. Using the correct part number helps maintain panel integrity, minimizes downtime, and supports a straightforward retrofit or service replacement without modifying wiring or panel layouts.

Ideal use cases include:

• Upgrading or restoring single-circuit protection in 277V commercial lighting or equipment circuits
• Retrofit projects where the original device is no longer available and exact specs are needed
• Maintenance replacements in established panels to maintain consistent performance and safety standards

Practical tips for a smooth installation

• Always power down and lockout/tagout the panel before work. Verify the system is de-energized before removing or installing breakers.
• Cross-check the panel labeling and service documentation to ensure FHL16080 matches the required 1-Pole, 277V configuration.
• If you’re replacing an old or damaged breaker, keep the exact part number (FHL16080) on hand to confirm compatibility and avoid mismatches.