Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Square D QO120PAFGF Dual Function Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Square D
QO120PAFGF
Dual Function Miniature Circuit Breaker
Brand
Square D
SKU
QO120PAFGF
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D QO120PAFGF - 20A Dual Function Miniature Circuit Breaker
New
Quantity
Similar Items
20A Dual Function Miniature Circuit Breaker
15A Dual Function Miniature Circuit Breaker
15A Dual Function Miniature Circuit Breaker
Description
Built for modern electrical codes, this 20-amp dual-function breaker delivers combination arc-fault and ground-fault protection. It operates at 120VAC and is suitable for both residential and commercial applications. This specific model features a plug-on neutral design, eliminating the need for pigtail wiring. It installs exclusively into QO Plug-On Neutral load centers and replaces the older QO120PDF model. With a 10 kAIC rating, it includes Time Saver Diagnostics to help identify faults.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO120PAFGF |
| Series | QO |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Plug-On Neutral Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | Dual Function (AFCI/GFCI) |
|---|---|
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
| Accessories | Time Saver Diagnostics (TSD) LED Indicator |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 1699, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
6 answersDo I need a specific panel to use the QO120PAFGF breaker?
Yes. This plug-on neutral breaker requires a Square D QO Plug-On Neutral load center. It cannot be used in Homeline panels or older standard QO panels that rely on pigtail neutral connections.
What is the difference between the QO120PAFGF and the QO120DF?
The QO120PAFGF utilizes a plug-on neutral connection for compatible panels, while the QO120DF features a traditional coiled pigtail neutral wire designed for legacy QO load centers.
Did the QO120PAFGF replace an older Square D part number?
Yes. Square D updated their catalog nomenclature, and the QO120PAFGF directly replaces the older QO120PDF. Both numbers represent the same 20A, 1-pole plug-on neutral dual-function breaker.
What specific protection levels does this dual-function breaker provide?
It provides both Combination Arc-Fault (CAFI) protection to mitigate electrical fire risks and Class A 5mA Ground-Fault (GFCI) protection for personnel safety, meeting NEC requirements for areas requiring dual protection.
How does the plug-on neutral connection affect panel wiring?
The breaker clips directly onto the load center neutral bar, eliminating the need to land a pigtail wire. This significantly reduces gutter clutter and speeds up branch circuit wiring during panel trim-out.
Does this breaker include diagnostic features for troubleshooting faults?
Yes. It features Square D Time Saver Diagnostics. By using the push-to-test sequence, an electrician can quickly identify whether a trip was caused by an arc fault, a ground fault, or a standard overload.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
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.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 285 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 6/13/26
Customers say these circuit breakers arrive quickly and work as described. Fast shipping and competitive pricing are frequently mentioned, with many noting same-day or next-day delivery. Users appreciate the wide inventory, particularly for hard-to-find older-style models unavailable locally. The products function reliably and arrive in good condition. Most customers report straightforward ordering and positive interactions. However, some experienced delivery delays or received incorrect items requiring reordering. A few noted concerns about condition upon arrival or customer service responsiveness.
Search
Rating
285 reviews
- GCGerard C.Verified BuyerReviewingSquare D QO130GFI - 30A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/21/26Great !
I could not find the breaker in hardwood stores. Superbreakers took car of it in a week.
- RHRoy H.Verified BuyerReviewingSquare D QO280 - 80A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26Square D QO280 - 80A 2 Pole Miniature Circuit Breaker
Exactly as described
- KWKevin W.Verified BuyerReviewingSquare D QO120 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/15/26Great Price
Brand spanking new!
- CEchristopher e.Verified BuyerReviewingSquare D QO115PDF - 15A Dual Function Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26My breakers
Had a hard time locating these breakers locally, when I did find 1 they wanted to charge me triple what superbreakers charged. Items delivered exactly when they said they would, were exactly what I ordered. Appreciated the ease of ordering, definitely my go to from this point on
- JCJerry C.Verified BuyerReviewingSquare D QO250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/8/26Great quality
No issues