Square D | FAF34040 | Circuit Breaker | 40A | 3-Pole | 480V

Introducing the Square D FAF34040 circuit breaker—a robust, three-pole protection device engineered for 480V three-phase systems. Designed for maintenance, retrofit, and replacement, this breaker ensures you can restore safe, reliable operation when exact specifications are required.

Key specifications

• Amperage: 40 A
• Poles: 3-Pole
• Voltage rating: 480 V
• Part number: FAF34040

Why this breaker stands out

For installations where consistency and compatibility with Square D ecosystems matter, FAF34040 delivers dependable overcurrent protection tailored to 3-phase equipment. Its exact match to the FAF34040 reference means you can maintain uniform performance across your panels, minimizing downtime and compatibility concerns during replacements or upgrades.

Ideal use cases

• Maintenance tasks on 480V, three-phase distribution panels
• Retrofits where new protection must align with existing Square D specifications
• Replacement for failing breakers in industrial machinery, feeders, or other 3-phase loads up to 40A

Compatibility and installation notes

Before ordering, confirm fit and ratings for your specific panel. The part number FAF34040 is the most reliable reference for compatibility. This ensures correct mounting footprint and electrical characteristics for your system.

Practical tips for best results

• Inspect panel documentation to verify it accepts a 3-pole, 480V device of this size
• Power down the system and follow standard electrical safety practices during replacement
• Label the circuit clearly after installation to reflect 40A, 3-pole protection