Square D | FI36090CBA | Circuit Breaker | 90A | 3-Pole | 600V

Meet the Square D FI36090CBA Circuit Breaker—a precise, industry-grade protection device designed for three-phase systems that require a 90-amp, 3-pole breaker rated up to 600V. Built for maintenance, retrofit, and replacement projects, this unit delivers dependable overcurrent protection while preserving the integrity of your existing electrical infrastructure.

Key specifications

• Amperage: 90 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Part number: FI36090CBA
• Application: Ideal for maintenance, retrofit, and replacement where matching specs are required

Why this FI36090CBA matters

This is not just a breaker with the right numbers. It’s a reliable, plug-in solution that aligns with Square D panels and enclosures, helping you maintain consistent trip characteristics and protection across your three-phase circuits. The 90 A rating is suited for equipment and loads typical in industrial environments, while the 3-pole configuration ensures coordinated protection across all three phases.

Use cases and practical scenarios

• Replacing a worn or failed 3-pole breaker in a 600V, three-phase panel to restore system protection with minimal downtime.
• Retrofit projects where existing equipment requires the same amperage, pole count, and voltage rating to preserve panel compatibility.
• Maintenance cycles that demand a genuine Square D part to maintain warranty coverage and electrical reliability.

Compatibility and ordering tips

To ensure a perfect fit, rely on the part number FI36090CBA as your best reference for compatibility. Always confirm fit and ratings for your specific panel model before ordering.

Whether you're safeguarding a critical piece of manufacturing equipment or ensuring ongoing serviceability in a high-demand electrical system, the FI36090CBA delivers the trusted performance you expect from Square D in a 90A, 3-pole, 600V package.