Square D | FA36090-BLACK | Circuit Breaker | 90A | 3-Pole | 600V

Square D FA36090-BLACK is a rugged 90-amp, 3-pole circuit breaker engineered for robust protection in three-phase electrical systems up to 600V. Built for maintenance, retrofit, and replacement projects, this FA-series unit delivers dependable interrupting capability when you need to safeguard equipment and personnel while keeping downtime to a minimum.

Key specifications

• Amperage: 90A
• Poles: 3-Pole
• Voltage rating: 600V
• Part number: FA36090-BLACK

Why this breaker matters

In three-phase electrical environments, a three-pole breaker must trip all hot legs simultaneously to ensure complete de-energization and safe service work. The FA36090-BLACK is designed to deliver consistent protection at 90 amps, helping prevent overcurrent events that can damage motors, drives, and other equipment while complying with standard protection practices in industrial and commercial installations.

Ideal use cases

• Maintenance: Replace aging or failed breakers to restore reliable overcurrent protection without reconfiguring your panel layout.
• Retrofit: Upgrade or modernize distribution systems that require a 90A, 3-pole, 600V protection strategy while preserving compatibility with existing panel hardware.
• Replacement: Have a like-for-like part on hand for swift service calls and reduced downtime.

Fit, compatibility, and installation notes

Before ordering, confirm fit and ratings for your exact application. The part number is the most reliable reference for compatibility, so use FA36090-BLACK to match your existing components. If your panel or distribution equipment specifies FA-series breakers or a 3-pole, 600V, 90A configuration, this unit is designed to integrate smoothly with the appropriate Square D/Schneider Electric systems.

Practical tips for best results

• Verify the panel labeling and service requirements to ensure a correct match with the FA36090-BLACK.
• Properly seat the breaker in the bus bar and re-secure all mounting hardware to maintain reliable electrical contact.
• Keep a spare FA36090-BLACK on hand for planned maintenance or rapid replacement to minimize downtime.
• Handle with care and follow professional electrical safety guidelines during installation and testing.

Designed for professionals who demand precise compatibility and dependable protection, the Square D FA36090-BLACK 90A 3-Pole 600V circuit breaker provides a clear path to safer, more reliable power distribution. Order with confidence, ensuring the exact part number aligns with your system’s specifications for optimal performance.