Square D FAL34045 - 45 A, 480 V, 3-Pole Circuit Breaker | AmpState

Square D FAL34045 delivers dependable 45-amp, 480-volt protection in a compact 3-pole molded case. Built to safeguard branch circuits and protect against short circuits, this breaker integrates smoothly into panelboards and loadcenters, making it a smart choice for space-conscious installations in residential, commercial, and light industrial settings.

Why this FAL34045 stands out

• Compact molded case design: Maximizes panel space for denser electrical distributions without compromising protection.
• Thermal-magnetic trip unit: Provides stable, repeatable protection performance by reacting sensitively to overcurrent and short-circuit conditions.
• 3-pole configuration for 480V systems: Ideal for three-phase equipment and commercial applications that use 480V power.
• OEM-compatible: Designed to drop into matching Square D loadcenters and panelboards for reliable, plug-and-play integration.
• Rated for demanding environments: Suitable for residential, commercial, and light industrial installations that require fast, predictable interruption in fault conditions.

Ideal for

• New panel installations where space is at a premium and robust 3-phase protection is required
• Panel upgrades or replacements in commercial spaces, offices, retail, or light industrial facilities
• Systems using a 480V three-phase distribution where dependable branch-circuit protection matters

Practical insights and usage

• Pair with compatible OEM loadcenters and panelboards to ensure seamless operation and consistent trip characteristics.
• Confirm the 45A rating aligns with the circuit’s conductor sizing and the connected equipment’s startup currents.
• Use as part of a coordinated protection strategy in multi-breaker assemblies to manage fault currents effectively.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: FAL34045
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 45 A
• Voltage rating: 480 V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Choosing the Square D FAL34045 means selecting a proven protection solution that combines space efficiency, precise trip performance, and OEM compatibility to keep electrical systems safe and operating smoothly across homes, businesses, and light industrial environments.