Square D FAL34100G 100A 3-Pole 480 V Circuit Breaker

The Square D FAL34100G is a trusted 3-pole circuit breaker designed for demanding 480 V three-phase electrical systems. With a 100 A rating, this device delivers reliable overcurrent protection for feeder circuits and main distribution in commercial and industrial panels, helping keep equipment and personnel safe while minimizing downtime due to faults.

Key specifications at a glance

• Current rating: 100 A
• Poles: 3
• Voltage rating: 480 V
• Part number: FAL34100G
• Manufacturer: Square D

Why this breaker stands out

• Precise compatibility with Square D panels—the FAL34100G is a genuine Square D component, ensuring coordinated protection, reliable bus-bar connections, and straightforward replacement in compatible panelboards.
• Solid three-phase protection—specifically designed to protect three-phase feeders and equipment from overloads and short-circuit conditions, helping reduce arc-flash risk and electrical damage in busy industrial environments.
• Clear part verification—carrying the exact model number FAL34100G, this breaker minimizes guesswork during maintenance, stock management, and panel retrofits, ensuring you’re using the correct device for your system.
• Durable construction for demanding installations—built to withstand the vibration and environmental conditions common in industrial electrical rooms and service panels, providing long-term reliability where it matters most.

Ideal use cases and who should consider it

• Industrial facility feeders—protect feeders supplying motors, conveyors, pumps, and HVAC equipment from overcurrent events in 3-phase networks.
• Commercial panel upgrades—upgrade or replace aging breakers in large commercial distribution systems that operate at 480 V three-phase power.
• Service disconnects and main panels—serve as a robust main-disconnect-style protection option within compliant 480 V distribution architectures.
• Maintenance planning—maintain spare inventory with a genuine part number (FAL34100G) to reduce downtime when routine service is required.

Practical benefits and outcomes

• Enhanced system safety—by interrupting fault currents, it helps prevent insulation damage, equipment failure, and potential safety hazards on busy distribution floors.
• Improved uptime—reliable protection means fewer unexpected outages, keeping critical processes and production lines running smoothly.
• Simplified maintenance—the exact part number and three-pole, 480 V rating align with standard industrial layouts, reducing replacement time and errors during service events.
• Clear, standardized configuration—avoids mismatches between devices and panels, supporting consistent protection schemes across facilities.

Installation and compatibility notes

When integrating the FAL34100G, verify that your panel and conductors are rated for 480 V and that the device type matches the panel’s intended protection characteristics. Use the exact part number to ensure proper fit, mounting, and bus-bar connection alignment with compatible Square D enclosures. Follow the manufacturer’s installation instructions for torque, alignment, and inspection steps, and ensure all power sources are isolated before servicing.

Tips for optimizing performance

• Maintain a small stock of genuine FAL-series parts to streamline future maintenance and replacements.
• Coordinate protection settings with upstream protection devices to achieve balanced fault clearing times across three-phase circuits.
• Periodically inspect for signs of wear, overheating, or deformation around the lug connections and mounting hardware, and replace if any irregularities are found.
• Document the part number (FAL34100G) and installation details in your asset management system to simplify audits and future upgrades.

Bottom line: the Square D FAL34100G 100A 3-Pole 480 V Circuit Breaker is a purpose-built, compatible choice for safeguarding three-phase electrical systems in demanding environments. Its exact fit, reliable protection, and straightforward integration make it a smart investment for panel reliability and long-term operational stability.