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Siemens QF120AN GFCI Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Siemens
QF120AN
GFCI Miniature Circuit Breaker
Brand
Siemens
SKU
QF120AN
Quantity
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Siemens QF120AN - 20A GFCI Miniature Circuit Breaker
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Description
Built specifically for modern Siemens plug-on neutral load centers, this 20-amp single-pole device streamlines installation by eliminating the traditional pigtail wire. The unit snaps securely into SN, PN, and XL series panels to deliver 5mA Class A ground-fault protection. Ideal for residential bathrooms, kitchens, and outdoor circuits, it includes built-in self-testing functionality and Insta-Wire connectors to speed up commercial or home wiring projects while meeting strict NEC codes.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QF120AN |
| Series | QF |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Plug-On Neutral Load Centers (SN, PN, XL Series) |
| Wire Gauge | 14-10 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 10 AWG (Cu), 8 AWG (Al) |
| 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 | GFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | LED Trip Indicator |
| Standards | CSA C22.2 No. 144, UL 489, UL 943 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
5 answersWhat is the difference between the Siemens QF120A and QF120AN?
The QF120AN features a Plug-On Neutral connection, which eliminates the need for a pigtail wire. The QF120A is the standard pigtail version.
Can I install the QF120AN in any Siemens load center?
No. The QF120AN is a Plug-On Neutral breaker and is only compatible with Siemens Plug-On Neutral load centers, specifically the SN, PN, and XL Series.
What level of ground fault protection does the QF120AN provide?
This breaker provides Class A 5mA ground fault protection, which is designed to protect personnel from electrical shock in residential and commercial applications.
Does this breaker require a pigtail connection to the neutral bar?
No. Because it is a Plug-On Neutral breaker, it connects directly to the neutral bar in compatible panels, eliminating the pigtail wire and reducing panel clutter.
Can the QF120AN be used for 240V applications?
No. This is a 1-pole breaker rated for 120VAC circuits only. For 240V applications, a 2-pole GFCI breaker is required.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 22 reviews.
Total 5 star reviews: 21 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 0
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Rating
22 reviews
- TSTHOMAS S.Verified BuyerReviewingSiemens QF220 - 20A GFCI Miniature Circuit BreakerI do not recommend this productRated 2 out of 5 stars3/30/26Double check correct version
I received the Q220”A” version. Superbreaker was easy to work with for a return.
- KHKarmen H.ReviewingSiemens QF120A - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/31/23Very happy
I am a small contractor in MN and when I get to the hard to find or not readily available in out are I always turn to SuperBreakers, for great selection and quick shipping.
- KHKarmen H.ReviewingSiemens QF115A - 15A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/31/23Breaker
I am a small contractor in MN and when I get to the hard to find or not readily available in out are I always turn to SuperBreakers, for great selection and quick shipping.
- JHJeff H.ReviewingSiemens QF120AN - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars1/26/23all good
all good
- DBDean B.ReviewingSiemens QF130 - 30A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/25/22Master Electrician
Lets me keep this short and simple.. Order from Super Breakers and you won’t be disappointed!!
Thank you for your business Super Breakers!