Square D | FHB16020C | Circuit Breaker | 20A | 1-Pole | 277V

The Square D FHB16020C is a dependable 20-amp, single-pole circuit breaker designed for 277-volt circuits. Built for maintenance, retrofit, and replacement projects, this part ensures you have exact compatibility when restoring power to your 277V panels.

• Amperage: 20A
• Poles: 1-Pole
• Voltage: 277V
• Part number: FHB16020C
• Brand: Square D

Notes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Why this 20A 1-pole breaker stands out for 277V applications:

• Targeted for 277V circuits: Ideal for commercial lighting, HVAC, and other 277V installations where reliable overcurrent protection is critical.
• Like-for-like replacement: Designed to drop into compatible Square D panels with minimal effort, helping you maintain panel layout and labeling consistency.
• Clear traceability: The FHB16020C designation makes ordering and maintenance logging straightforward, reducing downtime and mis-cataloging.

Use cases and scenarios you’ll appreciate:

• Maintenance on existing 277V distribution where a single-pole 20A protection device is required.
• Retrofits in panels that call for a precise Square D part number to preserve compatibility and performance.
• Replacement of a failed breaker in commercial or industrial electrical rooms that operate on 277V circuits.

Practical tips for a smooth swap:

• Always verify the panel’s acceptance of FHB16020C by cross-referencing the part number with your panel documentation.
• Shut off main power and follow standard safety procedures before replacing the breaker to ensure a safe, clean swap.
• Label the replacement clearly in your maintenance logs to reflect the exact part number and voltage rating for future service.