Part of the legacy FA series, the Square D FA24015CA delivers reliable thermal-magnetic protection for commercial and industrial electrical systems. This 2-pole, 15-amp molded case circuit breaker is specifically configured with a CA phase connection. It installs into standard Square D I-Line panelboards, providing a robust plug-on connection. Rated for 18 kAIC at 480VAC, it features Visi-Trip technology for quick fault identification and serves as a direct replacement for older installations.
What panelboards are compatible with the FA24015CA breaker?
The FA24015CA is a plug-in style breaker designed exclusively for Square D I-Line panelboards and switchboards. It cannot be used in standard QO, Homeline, or NQ/NF series panels.
What does the CA suffix mean in the FA24015CA catalog number?
For Square D I-Line breakers, the CA suffix indicates the specific phase connection. This 2-pole breaker is factory-configured to connect to the C and A phases of the panelboard's 3-phase bus.
Is the FA24015CA rated for use in direct current (DC) systems?
Yes, in addition to its AC ratings, this breaker is rated for DC applications up to 250VDC, where it provides an interrupting capacity of 10kAIC.
What wire sizes and materials are supported by the FA24015CA lugs?
The standard mechanical lugs on this breaker accept 14 AWG to 1/0 AWG copper (Cu) wire, or 12 AWG to 1/0 AWG aluminum (Al) wire.
Do I need a separate mounting kit to install the FA24015CA?
No. As an I-Line breaker, it features a plug-in mounting design that connects directly to the I-Line bus assembly. No additional mounting hardware or brackets are required.
Are the trip settings on the FA24015CA adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time (thermal) overload protection and instantaneous (magnetic) short-circuit protection are factory-set and cannot be adjusted in the field.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 71 reviews.
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Rated 5.0 out of 5 stars
Based on 71 reviews
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Reviews Summary
Generated by AI from 68 most recent customer reviews
Last updated 8/15/26
Customers say this circuit breaker matches its description, fits perfectly, and works as expected. Many reviews highlight fast shipping and quick delivery times, with several noting orders arrived within days. Users appreciate the product condition, describing refurbished units as appearing new without wear or marks. Common feedback addresses competitive pricing compared to local suppliers and the overall value proposition. Customers report straightforward ordering processes and reliable service, with repeat purchasers noting consistent positive experiences. The breaker installed easily and functioned properly in various applications.
Square D FA34090 - 90A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/30/26
Mill Superintendant
Works great!
We will definitely use SuperBreakers again.
Thank you!
Richard
CP
Casey P.
Verified Buyer
Reviewing
Square D FA34030 - 30A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/14/26
Great company
Ordered on a Saturday evening, paid for two day shipping and it arrived on time and in perfect condition. Would 100 percent be using this company going forward, beat out pricing and shipping times for all my local supply houses. Plus the staff were great to deal with.
AH
Ann H.
Verified Buyer
Reviewing
Square D FA36100 - 100A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/22/26
Professional Service
So far, so good! The circuit breaker was installed along with a new compressor for our church AC, and everything is now working well.
The company has been professional, dependable, and reputable throughout the process. I had a question after the installation, and it was answered immediately. I also appreciated that they followed up and asked for feedback to make sure the new part was working properly and that we were satisfied with the service.
It’s refreshing to deal with a company that not only has quality products but also cares about its customers after the job is completed. I would definitely recommend them!
RE
rene e.
Verified Buyer
Reviewing
Square D FA34070 - 70A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/14/26
breaker
breaker was just as discribed
BE
Ballentine E.
Verified Buyer
Reviewing
Square D FA24060AC - 60A 2 Pole Molded Case Circuit Breaker