Square D FAL34100 - 100 A, 480 V, 3-Pole Circuit Breaker | AmpState

When reliable power protection is non-negotiable, the Square D FAL34100 100A, 480V, 3-Pole Molded Case Circuit Breaker stands up to the demanding needs of modern electrical systems. Built for dependable branch circuit overcurrent and short-circuit protection, it thrives in panelboards and loadcenters where space efficiency and precise trip performance matter.

Why this 3-Pole, 100A breaker stands out

• Compact molded-case design maximizes available panel space without compromising protection, making it ideal for tighter electrical closets, dense panel layouts, or retrofit installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection across a wide range of operating temperatures and load conditions, helping prevent nuisance trips while ensuring fast response to actual faults.
• OEM loadcenter compatibility is built in — this breaker is designed to pair with matching Square D OEM loadcenters and panelboards for seamless integration and dependable performance.
• Versatile applications suitable for residential, commercial, and light industrial environments where three-phase protection is essential.
• Clear protection for branch circuits specifically engineered to guard against overcurrent and short-circuit events, helping to protect wiring, devices, and downstream equipment.

Technical snapshot

• Manufacturer: Square D
• Part Number: FAL34100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and installation insights

In a commercial panelboard distributing power to lighting, HVAC, and receptacle circuits, the FAL34100 provides a robust point of protection for three separate conductors, helping to maintain system integrity even during fault events. For industrial or light-industrial panels, this breaker supports three-phase distribution with reliable trip performance, enabling quick isolation of a fault to minimize downtime.

Installation considerations:

• Verify compatibility with your OEM loadcenter or panelboard to ensure proper fit and coordinated protection.
• Use as a dedicated branch-circuit protector where a 3-pole, 100 A device is required to guard multiple conductors within a single enclosure.
• Follow local electrical codes and manufacturer guidelines during replacement or retrofitting projects to maintain listing and safety standards.

Who benefits most from the Square D FAL34100

• Electrical contractors upgrading or expanding service panels in small to medium facilities.
• Facility managers seeking reliable protection for critical three-phase feeder circuits.
• Maintenance teams responsible for minimizing downtime by choosing durable, field-compatible protection devices.

Choose the Square D FAL34100 when you need a precisely rated 3-pole, 100 A breaker that fits neatly into panelboards and loadcenters, delivering dependable protection for 480V systems in residential, commercial, and light industrial settings. Its compact form, stable thermal-magnetic trip, and OEM compatibility translate into fewer service calls, steadier operations, and a safer electrical distribution network.