Square D | FAP34090TF | Circuit Breaker | 90A | 3-Pole | 480V

The Square D FAP34090TF circuit breaker is a purpose-built solution for three-phase power protection in modern industrial and commercial electrical systems. With a 90-amp rating and a 3-pole design, this breaker is tailored for 480V service environments where reliable interruption and precise protection are essential.

Key specifications at a glance

• Amperage: 90A
• Poles: 3-Pole
• Voltage: 480V
• Model: FAP34090TF
• Brand: Square D

What makes this breaker a smart choice

When your project calls for exact compatibility with existing Square D installations, the FAP34090TF delivers. Its three-pole configuration is ideal for safeguarding 3-phase circuits that power motors, compressors, and other heavy loads, ensuring coordinated disconnection across all phases in the event of a fault. The 480V rating aligns with common industrial distribution systems, helping you maintain consistent protection where it matters most.

Ideal use cases

• Maintenance, retrofit, and replacement of 3-phase panels and feeders that operate at 480V
• Industrial equipment protection where motor startup surges and phase balance are critical
• Upgrading legacy panels to match current Square D specifications for reliable field service

Why it matters for your project

Choosing the FAP34090TF isn’t just about meeting a spec; it’s about reducing downtime and ensuring long-term compatibility. By using the part number FAP34090TF, you reference a precise Square D component that aligns with your panel’s design, bus arrangement, and protective characteristics. This reduces guesswork during replacements and retrofit work, helping technicians complete the job with confidence.

Compatibility and installation notes

• Always confirm fit and ratings before ordering to ensure seamless integration with your existing Square D equipment.
• Use the part number as your primary compatibility reference to match panelboard labeling and factory specifications.
• Follow standard safety procedures when handling live electrical equipment, and consult the panel’s documentation for any device-specific installation steps.

Practical guidance for best results

• Store and transport the breaker in its original packaging if replacement is planned for scheduled maintenance to protect contact surfaces.
• Maintain documentation of the exact part number (FAP34090TF) for future service and inventory control.
• When purchasing, verify the system voltage, phase configuration, and the panel’s acceptance list to avoid compatibility issues.