Square D FA14020C 20A 1P 277V Circuit Breaker | AmpState

The Square D FA14020C is a dependable, high-quality circuit breaker designed to safeguard commercial and industrial electrical distribution. Engineered for panelboards and load centers, this 1-pole unit delivers reliable overcurrent protection for 277-volt circuits, making it an ideal replacement or spare for systems that require a precise part-number match.

• Amperage: 20 A
• Poles: 1
• Voltage rating: 277 V
• Part number: FA14020C
• Brand: Square D
• Applications: panelboards, load centers, and electrical distribution panels

Why choose the FA14020C? This breaker is purpose-built for environments where 277-volt circuits are standard, such as commercial lighting, HVAC control, and other distributed loads. Its DX-series reliability and direct compatibility with Square D panels ensure fast, error-free replacements that maintain system integrity and safety. Keeping a spare FA14020C on hand reduces downtime and makes maintenance teams more efficient, since a direct part-number match minimizes guesswork during critical repairs.

Key use cases

• Replacing a failed 20 A, 1-pole breaker in a 277 V distribution panel
• Maintaining spare inventories for panel builders and facilities teams
• Upgrading or correcting mismatched breakers in commercial electrical setups that require precise FA-series compatibility

What makes this different from generic breakers

Unlike generic substitutes, the FA14020C is designed to fit Square D panels exactly as intended, preserving trip characteristics, mounting dimensions, and electrical clearance. This specificity helps prevent fit issues that can arise with off-brand parts and ensures continuity of safety certifications in your distribution system.

Need help confirming compatibility or locating a direct fit for your panel model? Message us at AmpState and we’ll verify fit and availability for you. This item is readily available from AmpState, ready to ship to keep your maintenance workflow moving smoothly.