Square D | FDA240905 | Circuit Breaker | 90A | 2-Pole | 480V

When reliability matters in demanding 480V electrical systems, the Square D FDA240905 circuit breaker delivers. Designed for maintenance, retrofit, and replacement projects, this 90A, 2-pole unit is built to slot into compatible Square D panels with exacting precision, keeping your system protected without guesswork.

Key specifications

• Amperage: 90 A
• Poles: 2-Pole
• Voltage: 480 V

Why this model stands out

• OEM-grade compatibility: As a genuine Square D part, it’s engineered to match the design and performance of your existing panel, reducing the risk of fit issues or unintended tripping.
• Exact reference for compatibility: The FDA240905 part number is your best reference when ordering, ensuring you receive the correct device for your panel and application.
• Ideal for maintenance and upgrades: Whether you’re replacing aging components, retrofitting to meet new loads, or stocking spares for planned service, this 90A, 2-pole breaker keeps your electrical system aligned with your specifications.

Use cases and practical guidance

• Use in 480V electrical installations that require robust 2-pole protection for all hot legs, common in industrial feeders and equipment circuits.
• Perfect for panel upgrades where maintaining the same amperage and pole configuration ensures minimal disruption to existing wiring and downstream devices.
• When ordering, verify that your panel label and documentation support the FDA240905 model to preserve safety margins and code compliance.

Note: Before placing an order, confirm fit and ratings match your panel’s specifications. The FDA240905 part number is the most reliable reference for compatibility, helping you avoid misfits and ensure a smooth, code-compliant installation. If you’re planning a service window or stocking for future maintenance, this is a dependable choice that aligns with Square D standards and your 480V system requirements.