Square D FA340301212 Molded Case Circuit Breaker
- 30A
- 3 Pole
- I-Line
Square D
FA340301212
Molded Case Circuit Breaker
Brand
Square D
SKU
FA340301212
Quantity
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Square D FA340301212 - 30A 3 Pole Molded Case Circuit Breaker
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Description
Providing thermal-magnetic protection for commercial and industrial applications, this 30A F-frame MCCB handles up to 480VAC. It mounts into Square D I-Line panelboards and includes a factory-installed 1A/1B auxiliary switch (denoted by the 1212 suffix) to signal breaker status to external control systems. Delivering 18kAIC at 480V, it features Visi-Trip technology. This legacy unit is replaced by the PowerPacT H-frame HDA36030 base breaker.Specifications
| Brand | Square D |
|---|---|
| Series | FA |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | FA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Auxiliary Switch (1A/1B) |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489, Federal Specification W-C-375B/GEN |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersWhat does the 1212 suffix mean on the FA340301212 catalog number?
The 1212 suffix indicates that this breaker includes a factory-installed 1A/1B auxiliary switch rated for 125/250V. This provides one normally open (NO) and one normally closed (NC) contact for remote status signaling.
What panelboards accept the FA340301212 circuit breaker?
This breaker features an I-Line plug-in connection and is designed exclusively for installation in Square D I-Line panelboards and switchboards.
What is the modern replacement for the legacy Square D FA340301212?
The legacy F-Frame series has been superseded by the Square D PowerPact H-Frame series. A PowerPact H-Frame breaker with an I-Line connection can serve as a direct replacement in existing I-Line panelboards.
What are the magnetic trip thresholds for this 30A FA frame breaker?
This breaker features fixed thermal and magnetic trip elements. The magnetic hold current is 275A, and the magnetic trip current is 600A.
How does the I-Line plug-in connection install into the panelboard?
The I-Line mounting system uses a plug-on jaw connection that engages directly with the panelboard busbars. A mounting screw on the OFF end of the breaker is then fastened to a round hole on the backpan to secure the unit.
Does the FA340301212 provide ground fault equipment protection?
No, this is a standard thermal-magnetic circuit breaker that provides long-time and instantaneous (LI) protection. It does not include ground fault (GFPE or GFCI) or arc fault (AFCI) capabilities.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 70 reviews.
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.
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Rating
70 reviews
- CPCasey P.Verified BuyerReviewingSquare D FA34030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/26Great 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.
- AHAnn H.Verified BuyerReviewingSquare D FA36100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/22/26Professional 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!
- RErene e.Verified BuyerReviewingSquare D FA34070 - 70A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/14/26breaker
breaker was just as discribed
- BEBallentine E.Verified BuyerReviewingSquare D FA24060AC - 60A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/15/26Great
Accurate and on time.
- EBEdward B.Verified BuyerReviewingSquare D FA32100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/1/26As good as new
The Square D FA32100 circuit breaker (refurbished) was as good as a new breaker, without exception. There was no wear and tear or any marks at all. It was basically new. It is an excellent choice and a great product without having to pay the cost of a new breaker.