Square D FA36090G 90A 3-Pole 600 V Circuit Breaker

Square D FA36090G 90A 3-Pole 600 V Circuit Breaker delivers reliable, three‑phase protection for industrial and commercial electrical systems. Built to handle up to 90 amps and rated for up to 600 volts, this Square D device safeguards wiring, motors, and control circuits from overloads and short circuits while keeping your panel organized and compliant.

Key specifications

• Part number: FA36090G
• Current rating: 90 A
• Poles: 3
• Voltage rating: 600 V

Why this 3-pole breaker stands out

Designed for balanced protection across all three phases, the 3-pole configuration minimizes the risk of phase-to-phase faults and voltage imbalances. By interrupting all three conductors simultaneously, it provides reliable protection for motors, three-phase feeders, and distribution circuits, reducing downtime and equipment wear.

Ideal use cases

• Three-phase motor circuits in manufacturing floors and warehouses
• Commercial HVAC equipment and large compressors
• Three-phase feeders in electrical panels and distribution boards
• Data centers and server rooms with three-phase power distribution

Installation and compatibility tips

• Ensure your panel is rated for 600 V systems and compatible with FA-series breakers.
• Confirm bus bar and mounting compatibility with Square D panels before installation.
• Use proper tools and follow all safety procedures for electrical work. If in doubt, consult a licensed electrician.

Performance and maintenance considerations

With a robust 90 A rating, this breaker supports demanding loads while providing protection against unexpected surges. Regularly inspect for signs of wear after trips and replace if the mechanism appears degraded or if frequent trips occur, to maintain reliable protection.

Buy with confidence

Invest in the Square D FA36090G 90A 3-Pole 600 V Circuit Breaker for dependable, three-phase safety in your electrical system. This part number is built for durable protection in commercial and industrial environments, helping you maintain uptime and protect valuable equipment.