Square D | Q221225AB | Circuit Breaker | 225A | 2-Pole | 240V

For reliable 240-volt protection in Square D panels, the Q221225AB circuit breaker delivers the precise 225A, 2-pole performance your electrical system requires. Designed for maintenance, retrofit, and replacement projects, this breaker ensures you keep critical circuits protected with a like-for-like specification.

This unit emphasizes a direct-reference part number that minimizes guesswork during ordering and a fitment profile that aligns with Square D Q-series panels. When you replace a breaker, matching the exact part number helps prevent compatibility issues and field downtime.

Key specifications

• Amperage: 225A
• Poles: 2-Pole
• Voltage: 240V
• Part Number: Q221225AB
• Fitment note: Confirm fit and ratings before ordering; use the part number as the best reference for compatibility.

Why this Square D Q221225AB breaker stands out

This is not just a generic replacement. Being a Square D Q-series two-pole breaker with a 225A rating, it is specifically engineered for applications requiring robust, consistent protection in 240V circuits. The part-number-backed compatibility reduces the risk of mis-orders and panel mismatches, saving time on diagnostic and installation work.

Ideal use cases

• Maintenance: swap out aging or degraded breakers to restore reliable protection without reconfiguring the panel.
• Retrofit: upgrade circuits to a higher 225A rating where the panel design supports it, keeping system protection aligned with load requirements.
• Replacement: restore consistent protection across critical feeders in commercial or light industrial settings that rely on Square D gear.

Installation and best practices

• Release voltage and lockout power to the panel before working. Use appropriate PPE and follow local electrical codes.
• Verify that your electrical panel is compatible with Q-series breakers and that the Q221225AB rating matches the circuit being fed.
• When replacing, remove the old breaker carefully, inspect the bus contacts, and install the new Q221225AB ensuring a firm, clean connection.
• Test the circuit after installation to confirm proper tripping behavior and uninterrupted operation of connected loads.