Square D FA34040 40A 3P 480V Circuit Breaker | AmpState

Meet the Square D FA34040 40A 3P 480V circuit breaker — a dependable protection device built for panelboards, load centers, and distributed electrical systems. Designed to safeguard circuits from overloads and faults, this 3-pole breaker delivers reliable interruption when you need it most, helping protect equipment and ensure safe operation across your electrical distribution network.

Why this FA34040 stands out

• Direct part-number match — specifically the FA34040, making it an ideal choice for maintenance schedules and panel builders who need a precise, no-hassle fit.
• Three-pole, 480V performance — suited for three-phase industrial or commercial systems that run on 480V, providing coordinated protection across all phases.
• 40 ampere protection — aligns with common circuit feeders and equipment loads, enabling targeted protection without unnecessary tripping.
• Versatile application — commonly used in panelboards, load centers, and electrical distribution setups, making it a practical staple for field technicians and spare inventory.
• Authored by a trusted brand — Square D (a Schneider Electric brand) known for durable, reliable electrical protection components.
• Support for fit and compatibility — AmpState offers assistance to confirm fit and compatibility if you’re cross-referencing parts or building a spare kit.

Specification snapshot

• Manufacturer: Square D
• Part Number: FA34040
• Product Type: Circuit Breaker
• Amperage: 40 A
• Poles: 3
• Voltage: 480 V

Ideal for who and where

• Maintenance teams stocking spare parts for field service and on-site protection upgrades
• Panel builders specifying a precise FA-series component to ensure seamless integration
• Electrical distributors and facilities managers needing reliable, compatible 3P 480V protection

Practical use and outcomes

• Safeguard motors, feeders, and distribution circuits in 3-phase, 480V environments by interrupting fault currents quickly and predictably.
• Reduce downtime with fast, direct-fit replacement that minimizes rework during maintenance or panel upgrades.
• Maintain system reliability by using a genuine Square D part designed for compatibility and long-term performance.

How AmpState supports you

If you’re unsure about compatibility or need a quick confirmation that FA34040 matches your panel or distribution scheme, AmpState is ready to assist. We can help verify fit and guide you to the right part for your specific setup.

Ready to secure dependable protection for your 3-phase 480V circuits? The Square D FA34040 40A 3P 480V circuit breaker is available from AmpState—a precise, reliable part you can trust for panelboards, load centers, and everyday electrical distribution needs.