Square D QDA222251 - 225 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D QDA222251—a rugged 2-pole, 225 A, 240 V plug-in molded case circuit breaker built to protect your critical electrical infrastructure. Designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers, this breaker keeps your power system safe while minimizing downtime during installation or replacement.

Why the QDA222251 stands out

• Fast plug-in connection for quick installation and effortless replacement, reducing service time and labor costs.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance across varying loads and fault conditions—helping you avoid nuisance trips and ensure reliable service.
• 225 A at 240 V, 2 poles provides robust protection for high-current branch circuits in both residential and commercial environments, with suitability for light industrial applications.
• Plug-in molded case design ensures a secure, code-compliant fit with matching OEM load centers and panelboards.
• Versatile applications ideal for protecting branch circuits in main panels, subpanels, and load centers, keeping critical equipment safeguarded.

Technical snapshot

• Manufacturer: Square D
• Part number: QDA222251
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 225 A
• Voltage rating: 240 V
• Number of poles: 2
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Practical use and benefits

This breaker is ideal for upgrading aging panels, expanding service capacity, or outfitting new installations where reliable overcurrent protection is essential. Its compatibility with matching OEM load centers ensures a precise, dependable fit that maintains system integrity and safety. Whether coordinating with residential electrical loads or powering commercial circuits, the QDA222251 delivers consistent protection when it matters most.

Pro tip: Pair with a compatible Square D load center to ensure synchronized trip curves and panel labeling clarity, especially in multi-circuit installations where predictable protection is critical.