Square D | FA24045AB | Circuit Breaker | 45A | 2-Pole | 480V | Plug-In

Introducing the Square D FA24045AB circuit breaker — a precise 45A, 2-pole, 480V plug-in protector designed for reliability in demanding industrial environments. Built for maintenance, retrofit, and replacement projects, this unit offers fast, dependable protection for high-voltage feeders while helping keep downtime to a minimum.

Key specifications

• Amperage: 45A
• Poles: 2-Pole
• Voltage: 480V
• Type: Plug-In
• Part number: FA24045AB

Why this FA24045AB stands out

• Plug-in convenience: Designed for straightforward installation in compatible panels, enabling quicker swaps and reduced service interruptions.
• Dual-pole protection: Trips both conductors together, safeguarding circuits that run on 480V systems and helping prevent arc faults or dangerous energization imbalances.
• Industry-compatible rating: 480V capability supports high-voltage equipment and motor feeders common in industrial settings.
• Trusted brand continuity: Part of Square D’s robust protection family, ensuring consistent performance with other Square D protective devices.
• Clear compatibility reference: The FA24045AB part number is your best reference when verifying fit for retrofits or panel replacements.

Ideal use scenarios

• Replacing a failed breaker in existing 480V electrical infrastructure without changing the panel setup.
• Retrofits and upgrades where a precise 45A, two-pole, 480V plug-in solution is required.
• New installations for high-voltage feeders and control circuits in manufacturing, processing, or industrial facilities.

Installation & compatibility tips

Before ordering, confirm fit and ratings to ensure compatibility with your equipment. Use the FA24045AB part number as the primary reference for panel compatibility, and verify that your panel accepts plug-in breakers of this configuration. If in doubt, double-check labeling on the panel and align with your existing protection scheme to maintain proper coordination and safety.

Care, handling, and best practices

Store spare FA24045AB units in a clean, dry environment. During replacement, ensure power is fully isolated and the circuit is discharged before handling. Regular inspection of breakers and panel connections helps maintain reliable protection and can prevent unexpected trips or equipment downtime.