Square D FA34090G 90A 3-Pole 480 V Circuit Breaker

Square D FA34090G 90A 3-Pole 480 V Circuit Breaker is a purpose-built solution for protecting critical 3-phase electrical systems in demanding environments. With a 90 amp current rating and a three-pole design, this breaker provides reliable overcurrent protection in 480-volt installations, helping to safeguard motors, feeders, and other heavy loads from damage due to overloads and short circuits.

Key specifications at a glance:

• Part number: FA34090G
• Current rating: 90 A
• Poles: 3
• Voltage rating: 480 V
• Configuration: Three-pole circuit breaker
• Brand: Square D

What this means in practical terms: the FA34090G is ideal for 480 V three-phase systems found in industrial settings such as manufacturing lines, processing plants, large commercial facilities, and HVAC or pumping installations. It protects essential equipment by interrupting current quickly when an abnormal condition occurs, reducing the risk of insulation damage, arc faults, and unplanned downtime. If your panel is configured to accept FA-series, this unit slots in as a direct, compatible protection device for three-phase feeders and motors up to 90 A.

Why choose the FA34090G for your electrical distribution needs:

• Precision protection for 3-phase loads: The three-pole design ensures balanced protection across all conductors in your 480 V system, preventing phase imbalances that can stress equipment.
• High-visibility, reliable performance: Built by Square D to deliver consistent operation in environments where reliability matters, so you can count on predictable tripping behavior under fault conditions.
• Space-efficient fit for industrial panels: A compact form factor designed to integrate with standard Square D distribution panels that accommodate 3-pole, 480 V breakers.
• Direct applicability for industrial feeders and motors: Use this breaker to protect critical motors, conveyors, pumps, and other heavy loads powered by 480 V three-phase supply.

Installation and maintenance notes to keep performance at its best (performed by a qualified electrician):

• Verify compatibility with your electrical panel and the intended three-pole 480 V application before installation.
• Isolate power, lock out/tag out, and follow all site safety procedures prior to any replacement or servicing.
• Use the manufacturer’s torque specifications for terminal connections and ensure all connections are secure after installation.
• Replace only with the exact part whenever service indicates a fault or wear—the FA34090G is specified for use in appropriate 480 V three-phase circuits.

In short, the Square D FA34090G 90A 3-Pole 480 V Circuit Breaker is a focused, dependable choice for protecting 3-phase equipment in high-voltage environments. Its 90 A rating coupled with a true three-pole configuration makes it a strategic fit for industrial facilities seeking durable, reliable protection that aligns with standard Square D installations.