Best AFCI Breakers for Home Panels
An arc fault circuit interrupter, or AFCI, is a breaker that watches for the electrical signature of a dangerous arc and trips before it can start a fire. Because AFCI protection is now required by code for most branch circuits in new and renovated homes, choosing the right breaker comes down to matching your panel brand, your available space, and whether you want a simple branch-circuit unit or a combo device that also handles ground faults.
Quick answer
The Siemens Q115AF is the best overall AFCI breaker for most Siemens and Murray panels thanks to its clean plug-on install and broad availability.
Why trust ToolBuyerHub
- Cross-checked manufacturer-published specifications before writing any recommendation
- Verified US market availability and configuration for every model discussed
- Owner-feedback themes are summarized as feedback, never presented as our own hands-on testing
- No invented star ratings; see the visible Research Score criteria on this page
- Flagged CAT rating and safe-use guidance wherever a tool is used near live circuits
- We compare breaker families by panel compatibility, interrupting rating, trip indicators, and the owner-feedback themes that show up repeatedly in reviews, not by copied retailer star averages.
Research updated September 2026.
What Matters Most for This Category
The single most important factor is panel compatibility. A breaker that does not physically and electrically match your load center is useless, so identify your panel brand and model first, then confirm the breaker is listed for that panel. After that, decide between a branch-circuit AFCI and a combination AFCI/GFCI, check the interrupting rating (10 kA is common for residential, 22 kA for some commercial or high-fault locations), and confirm whether you need a pigtail neutral or a plug-on neutral design. Space in the panel and the type of busbar matter too, since some panels accept only specific breaker lines.
| Model | Best for | Key specs | Research Score |
|---|---|---|---|
| Siemens Q115AF | Best Overall | Branch-circuit AFCI, Single | 94/100 |
| Eaton BR115AF | Best for Eaton and BR Panels | Branch-circuit AFCI, Single | 92/100 |
| Square D Homeline HOM115AFIC | Best for Homeline Panels | Combination AFCI, Single | 91/100 |
| Square D QO115AFIC | Best for QO Panels | Combination AFCI, Single | 90/100 |
| Eaton BR120AF | Best 20A AFCI | Branch-circuit AFCI, Single | 89/100 |
| Siemens Q120AF | Best 20A for Siemens Panels | Branch-circuit AFCI, Single | 88/100 |
| GE THQL1120AF | Best for GE Panels | Combination AFCI, Single | 87/100 |
Siemens Q115AF
Top pickPros
- Widely available and easy to find in stock
- Plug-on neutral design simplifies wiring in compatible panels
- Clear trip indication helps with troubleshooting
Cons
- Only fits Siemens and Murray panels
- Pigtail versions may be needed for older panels
The Q115AF is the standard single-pole AFCI for Siemens and Murray panels and is one of the most commonly stocked AFCI breakers in US retail. It uses a plug-on neutral connection in panels that support it, which cuts down on neutral pigtail clutter. Based on manufacturer specifications, it provides branch-circuit arc fault protection for 15A circuits.
Eaton BR115AF
Panel matchPros
- Direct fit for Eaton BR panels
- Common in retrofit and new construction
- Clear labeling and trip indicator
Cons
- Not interchangeable with other panel brands
- Pigtail neutral adds a wire in the panel
The BR115AF is Eaton's single-pole AFCI for BR-series load centers, a panel line found in a huge number of US homes. It uses a pigtail neutral, so it works in older BR panels that lack a plug-on neutral bus. Based on manufacturer specifications, it delivers branch-circuit AFCI protection at 15A.
Square D Homeline HOM115AFIC
Combo optionPros
- Combination AFCI covers series and parallel arcs
- Matches the popular Homeline panel line
- Widely stocked at home centers
Cons
- Only fits Homeline panels
- Costs more than a basic branch-circuit AFCI
The HOM115AFIC is a single-pole combination AFCI for Square D Homeline panels, one of the most common residential load centers in the US. Combination AFCI devices are designed to detect both series and parallel arc faults. Based on manufacturer specifications, it fits Homeline load centers and provides 15A protection.
Square D QO115AFIC
Premium panelPros
- Fits the widely used QO panel line
- Combination AFCI protection
- Solid build quality associated with the QO line
Cons
- QO breakers cost more than Homeline equivalents
- Only fits QO panels
The QO115AFIC brings combination AFCI protection to Square D QO load centers, a panel line common in older and higher-end residential installs. It is a single-pole 15A breaker. Based on manufacturer specifications, it is listed for QO panels and detects both series and parallel arcs.
Eaton BR120AF
20A optionPros
- 20A rating suits kitchen and laundry circuits
- Fits Eaton BR panels
- Pigtail neutral works in older panels
Cons
- Not for 15A-only circuits
- Only fits BR-series panels
The BR120AF is the 20A version of Eaton's BR-series AFCI, aimed at circuits that need more capacity such as kitchen, laundry, or garage receptacles. It uses a pigtail neutral. Based on manufacturer specifications, it provides branch-circuit AFCI protection at 20A for BR load centers.
Siemens Q120AF
20A SiemensPros
- 20A capacity for higher-demand circuits
- Fits Siemens and Murray panels
- Plug-on neutral in compatible panels
Cons
- Only fits Siemens and Murray
- Pigtail needed in older panels
The Q120AF is Siemens' 20A single-pole AFCI for Siemens and Murray load centers. It is the higher-amperage companion to the Q115AF. Based on manufacturer specifications, it provides branch-circuit AFCI protection at 20A and uses a plug-on neutral in panels that support it.
GE THQL1120AF
GE fitPros
- Fits GE THQL panel lines
- Combination AFCI protection
- 20A rating for general-purpose circuits
Cons
- Only fits GE panels
- Availability varies by region
The THQL1120AF is a single-pole 20A combination AFCI for GE THQL load centers. It is one of the main AFCI options for homes with GE panels. Based on manufacturer specifications, it detects series and parallel arcs and is listed for THQL panels.
Who Should Avoid the Top Pick
This guide is not for anyone working in a panel they cannot identify or de-energize safely. If you are unsure of your panel brand, cannot find the model number, or are not comfortable working inside a live-adjacent electrical enclosure, hire a licensed electrician. AFCI breakers are also not a substitute for proper grounding, GFCI protection where required, or fixing damaged wiring.
Before You Buy
Before buying, shut off the main breaker and photograph your panel label so you can confirm the brand and model. Check whether your panel uses a plug-on neutral or requires a pigtail, and note the amperage of the circuit you are protecting. Confirm the breaker is listed for your specific panel line, since brands are generally not interchangeable. Finally, check local code requirements, because some jurisdictions require combination AFCI or AFCI/GFCI devices in certain rooms.
FAQs
What is the difference between a branch-circuit AFCI and a combination AFCI?
A branch-circuit AFCI is designed to protect the branch circuit wiring, while a combination AFCI is intended to detect both series and parallel arc faults. Combination devices are the more common choice for new installations.
Can I use any AFCI breaker in any panel?
No. AFCI breakers are listed for specific panel lines, so a Siemens breaker will not properly fit or function in an Eaton or Square D panel. Always match the breaker to your load center brand and series.
Do I need a 15A or 20A AFCI breaker?
Match the breaker to the circuit. General lighting and receptacle circuits are often 15A, while kitchen, laundry, and some garage circuits are commonly 20A. Never upsize a breaker beyond the wire and circuit rating.
What is a plug-on neutral AFCI breaker?
A plug-on neutral breaker connects to a neutral bus in the panel without a separate pigtail wire. It is available only in panels designed for it and can make installation cleaner.
Will an AFCI breaker stop nuisance tripping?
AFCI breakers can trip on some motor loads, shared neutrals, or wiring issues. If tripping is frequent, the cause is often a wiring problem or a shared neutral, and an electrician should investigate.
Are AFCI breakers required by code?
The National Electrical Code has required AFCI protection for most branch circuits in dwelling units for many code cycles, though exact requirements vary by edition and local adoption. Check with your local authority having jurisdiction.
Our verdict
For most homeowners with Siemens or Murray panels, the Siemens Q115AF is the easiest and most reliable pick, while Eaton BR and Square D Homeline owners should match their panel brand rather than force a universal fit. Confirm your panel model, amperage, and neutral style before ordering, and call an electrician if anything about the install is unclear.