Square D QO115DF Dual Function Miniature Circuit Breaker
- 15A
- 1 Pole
- Plug-On
Quantity
Square D QO115DF - 15A Dual Function Miniature Circuit Breaker
New
Quantity
Description
Built for residential and commercial applications, the Square D QO115DF delivers comprehensive circuit safety. It provides both combination arc-fault (CAFCI) and Class A 6mA ground-fault (GFCI) protection in one device. Designed with a pigtail neutral connection, it mounts into standard QO load centers and NQ panelboards. The 15-amp, 120V breaker features a 10kAIC rating and includes the signature Visi-Trip indicator for rapid fault identification.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO115DF |
| Series | QO |
| Amperage | 15A |
| 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 Load Centers, NQ Panelboards |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| 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 | Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | HACR, UL 489, UL 943, UL 1699, CSA C22.2 No. 5 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Time-Saver Diagnostics, HACR Rated |
Product FAQs
6 answersWhat is the difference between the QO115DF and the QO115PDF?
The QO115DF features a pigtail neutral wire that must be connected to the panel's neutral bus bar. The QO115PDF is a Plug-on Neutral breaker designed exclusively for QO plug-on neutral load centers, eliminating the need for a pigtail connection.
What type of protection does a dual function circuit breaker provide?
A dual function breaker like the QO115DF combines Combination Arc-Fault Circuit Interrupter (CAFCI) protection and Class A 6mA Ground-Fault Circuit Interrupter (GFCI) protection into a single device.
How do I identify why the QO115DF tripped?
This breaker features Square D Time-Saver Diagnostics, which uses a specific sequence with the test button to indicate whether the trip was caused by an arc fault, a ground fault, or a standard overload or short circuit. It also includes the Visi-Trip red indicator to easily spot the tripped breaker in the panel.
Can I install the QO115DF in a Homeline load center?
No. The QO115DF is designed exclusively for Square D QO load centers and NQ panelboards. Homeline panels require HOM series breakers.
Is there a version of this 15A dual function breaker with a higher interrupting rating?
Yes. The QO115DF has a 10kAIC rating. If your application requires a 22kAIC rating, you will need the QO115VHDF.
Does the QO115DF require a dedicated neutral wire?
Yes. Because it provides Class A GFCI and CAFCI protection, the load neutral must be connected directly to the breaker, and the breaker's pigtail neutral must be connected to the panel's neutral bus bar.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 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