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The FA24020AB SQUARE D 2P 20A 277V AB PH I LINE is a premium quality double-pole circuit breaker designed for reliable performance in residential and commercial applications. With a 20-amp rating and 277-volt capacity, it ensures optimal protection for your electrical systems. Ideal for hot tub installations and other high-demand setups.
The FA24020AB is an FA-frame molded-case circuit breaker (MCCB) with a plug-in mounting. It is designed for Square D commercial panelboards and switchboards that accept FA-frame plug-in breakers — it is not intended for residential QO or Homeline loadcentres. Contact us with your panel model and we'll confirm the fit.
The 277V rating means this breaker is engineered for 120/208V or 277/480V commercial systems (such as 3-phase wye distribution common in Canadian commercial buildings). While 277V-rated breakers can be used on lower-voltage systems, you should verify your panel's voltage configuration matches the application before installation.
The Square D FA-frame series has been largely superseded by newer MCCB lines. If the FA24020AB is discontinued or hard to find through standard supply channels, Northern Breaker Group specialises in exactly this — sourcing obsolete and hard-to-find breakers for Canadian customers. Reach out to our Calgary, Edmonton, or Vancouver counters for availability and a quote.
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