FA12025C SQUARE D 1P 25A 120/240V C PH I LINE

No. The FA12025C belongs to Square D's FA molded-case frame series, which is a commercial/industrial line designed for Square D panelboards and switchboards that accept FA-frame plug-in breakers. QO breakers are a separate residential plug-in series and are not interchangeable with FA-frame breakers. Using the wrong frame in a panel is a code violation and a safety hazard — contact us if you're unsure which breaker your panel requires.

Square D's FA frame line has seen product transitions over the years and certain catalogue numbers can be difficult to find through standard distribution channels. Northern Breaker Group specialises in obsolete and hard-to-find breakers across Canada. Whether the FA12025C is a current or discontinued part, we can source new, reconditioned, or factory-tested surplus stock — reach out to our Calgary, Edmonton, or Vancouver counter for a quote.

In Square D's FA series nomenclature, the suffix letter (in this case 'C') typically denotes a specific trip characteristic or product revision — in this series it indicates a standard thermal-magnetic trip curve appropriate for general overcurrent protection. When sourcing a replacement, it is important to match the full catalogue number including the suffix, as a different suffix may indicate a different trip characteristic or interrupt rating. Our team can help verify the correct replacement for your application.