Square D | FA34040CBA | Circuit Breaker | 3-Pole | 480V

The Square D FA34040CBA is a purpose-built 3-pole circuit breaker designed for 480V three-phase systems. Built for maintenance, retrofit, and replacement projects, this breaker integrates with Square D panels to deliver dependable overcurrent protection where it matters most.

Why choose the FA34040CBA for your electrical distribution?

• Three-pole configuration provides robust protection for all three phases in your 480V system, helping prevent imbalances and equipment damage.
• 480V voltage rating matches common commercial and industrial power setups, reducing the need for adaptors or hardware changes.
• Exact-fit compatibility indicated by the part number FA34040CBA — your best reference when matching frames, mounting, and trip characteristics in Square D panels.
• Effortless maintenance and retrofit — swap in this unit to replace a worn or failing breaker without reworking the surrounding panel hardware.

What to check before you buy and how to install

• Verify that your panel’s frame and rating align with the FA34040CBA specifications; the part number is the most reliable compatibility reference.
• Gather your panel model and service voltage to confirm the 3-pole, 480V configuration fits your load requirements.
• Ensure proper alignment with bus stabs and mounting points during installation to maintain secure connections and reliable trip performance.

This Square D FA34040CBA circuit breaker is ideal for facility managers, electrical contractors, and maintenance teams responsible for 3-phase power distribution in industrial settings. If you’re updating older infrastructure or stocking spare protection for critical equipment, this unit offers a clear, dependable path to continued safe operation.