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The FA17100A Square D 1 Pole 100A 347V Circuit Breaker is designed for reliable overcurrent protection in single-phase applications. With a compact design, it ensures easy installation while safeguarding your electrical systems. Perfect for industrial and commercial settings, this breaker guarantees operational safety and durability. Trust Square D for superior performance.
The FA17100A is an FA-frame molded-case breaker with a plug-in mount, typically used in Square D NF, I-Line, and similar industrial/commercial panelboards and switchboards rated for FA-frame breakers. It is not designed for residential QO or Homeline loadcentres. Contact us with your panelboard model and we'll confirm compatibility.
Yes. 347V is the phase-to-neutral voltage of a 600V (three-phase, 4-wire) system common in Canadian commercial and industrial facilities. The FA17100A is specifically rated for 347V single-phase use, making it well suited for Canadian lighting circuits and branch distribution operating off a 600V supply — a configuration far less common in the U.S.
Square D FA-frame breakers have largely been superseded by newer series, and availability of specific configurations like the FA17100A can be limited. Northern Breaker Group specializes in obsolete and hard-to-find breakers, so even if this unit is no longer in regular production, we can often source tested surplus or new-old-stock inventory. Reach out to our Calgary, Edmonton, or Vancouver counters for current stock.
