Square D | FAF22045 | Circuit Breaker | 45A | 2-Pole | 240V

The Square D FAF22045 circuit breaker is a reliable 45-amp, 2-pole device designed for 240-volt circuits in compatible Square D panels. Built for maintenance, retrofit, and replacement projects where exact specifications matter, this breaker provides precise protection for your critical electrical loads while ensuring safe, code-compliant operation.

Key specifications

• Amperage: 45 A
• Poles: 2-Pole
• Voltage: 240 V
• Part number: FAF22045
• Compatibility note: Confirm fit and ratings before ordering; the part number is the best reference for compatibility.

Why this Square D breaker stands out

Designed specifically to align with Square D panel configurations, the FAF22045 delivers dependable trip characteristics and mounting geometry that generic substitutes can’t guarantee. This means smoother installs, clearer labeling, and more predictable protection for your 240V circuits—an essential choice for both professional electricians and informed homeowners tackling panel maintenance.

Ideal use cases

Use this 45A, 2-pole 240V breaker to protect high-load branch circuits in residential, commercial, or light-industrial settings. Typical applications include HVAC equipment, heat pumps, large dedicated outlets, or other 240V loads that require robust, category-specific protection. It’s particularly valuable in retrofit scenarios where keeping exact Square D specifications is critical for safety and performance.

Installation and safety tips

• Shut off power at the main breaker before working on the panel and verify there is no voltage presence.
• Check the panel labeling to confirm FAF-series compatibility and confirm that FAF22045 matches the required rating and mounting style.
• Follow local electrical codes and, if in doubt, consult a licensed electrician to ensure proper installation and safe operation.

Notes on compatibility

Keep the FAF22045 part number as your primary reference to ensure exact fit, alignment, and interchangeability within compatible Square D panels. Verifying panel tolerance, bus configuration, and any required accessory kits before purchase helps prevent delays and ensures reliable protection for your 240V circuit needs.