Square D | FAP34040V | Circuit Breaker | 40A | 3-Pole | 34040V

Meet the Square D FAP34040V circuit breaker—a rugged, three‑pole protector designed for demanding 3‑phase applications. With a targeted 40A rating and a 34040V voltage specification, this device is built to deliver reliable protection in maintenance, retrofit, and replacement projects where precise compatibility matters. The part number FAP34040V is your best reference for ensuring a correct fit in compatible panels.

Key specifications

• Amperage: 40A
• Poles: 3‑Pole
• Voltage: 34040V
• Reference: Part number FAP34040V

Why this 3‑pole design matters

The three‑pole configuration provides synchronized protection across all three hot legs in a 3‑phase system, helping prevent phase imbalance and ensuring the entire circuit disconnects safely during a fault. This makes it an ideal choice for motor circuits, three‑phase equipment, and commercial or industrial power distributions that rely on balanced protection.

Who benefits most

• Maintenance teams performing panel refurbishments or component replacements
• Facilities managers overseeing commercial HVAC, manufacturing lines, or data center power distribution
• Electricians and contractors conducting retrofits to align with updated safety and protection standards

Compatibility and installation notes

Before ordering, confirm that your panel requires a 40A, 3‑pole, 34040V device and that the FAP34040V is the correct reference for your setup. The part number remains the most reliable way to ensure compatibility with your existing distribution equipment and protection scheme. When replacing an old breaker, align the new unit with the same trip characteristics and conductor sizing to maintain protection coordination and safe operation.

Practical use cases and scenarios

• Replacing a failed 3‑phase 40A breaker in industrial control panels
• Upgrading legacy equipment to a modern, reliable Square D protection device
• Retrofitting power distribution for improved fault isolation in commercial facilities
• Supporting motor drives and three‑phase equipment that require synchronized disconnect across all lines

With its proven Square D engineering, the FAP34040V offers dependable performance in environments that demand consistent protection, easy integration into compatible panels, and a straightforward path to maintaining electrical safety and reliability. If your project requires a precise 3‑pole, 40A solution for 34040V systems, this breaker is designed to meet those exacting specifications.