Square D | FAP34040-BLACK | Circuit Breaker | 40A | 3-Pole | 480V

Protect critical 3‑phase electrical circuits with the Square D FAP34040-BLACK Circuit Breaker. Rated at 40A and designed for 480V systems, this three-pole unit delivers reliable overcurrent protection for industrial panels, motor drives, and heavy-duty feeders. Ideal for maintenance, retrofit, or replacement projects, it helps you preserve equipment uptime and safety with a trusted Square D build.

Key Features

• Amperage: 40A dynamic protection for moderate to high‑demand loads.
• Poles: 3‑Pole configuration supports standard 3‑phase circuits.
• Voltage rating: 480V for industrial distribution and equipment applications.
• Model reference: FAP34040-BLACK ensures precise compatibility with matching panels and assemblies.
• Application fit: Built for maintenance, retrofit, and replacement where exact specifications are required.

Technical Specifications at a Glance

• Amperage: 40A
• Poles: 3-Pole
• Voltage: 480V
• Brand: Square D
• Model: FAP34040-BLACK

Ideal Use Scenarios

• Upgrading or replacing older panels in manufacturing lines, HVAC systems, or processing equipment that operate on 480V three-phase power.
• Retrofit projects where exact part compatibility minimizes downtime and reorder risk.
• Maintenance cycles for industrial facilities requiring durable, field-proven protection for motor feeders and distribution circuits.

Why This Model Stands Out

Choosing the FAP34040-BLACK means selecting a dependable, OEM-aligned solution from Square D that aligns with your existing panel labeling and protective coordination. The three-pole design ensures balanced protection across all three phases, helping prevent unbalanced loads and potential damage to motors and drives. With the best compatibility reference being the part number, you can confidently source the exact replacement without aftermarket guesswork.

Compatibility and Installation Tips

Important: Confirm fit and ratings before ordering. The part number, FAP34040-BLACK, is the most reliable reference for ensuring compatibility with your panel and accessory kit. During installation, verify that the panel label supports 480V and 40A ratings, and follow standard electrical safety practices and local codes for disconnecting and handling power devices.

Practical Considerations

• Keep a spare on hand for planned maintenance to minimize downtime in critical systems.
• Document the exact model and rating in your panel inventory for future replacements and audits.
• Use in conjunction with proper enclosure clearance and thermal considerations to maintain reliable performance in industrial environments.

For professionals seeking a precise, reliable 40A, 3‑pole, 480V circuit breaker, the Square D FAP34040-BLACK delivers compatible protection with strong aftermarket support and a long track record in demanding applications.