Siemens Q2020AFCN 20/20A Combination AFCI | Tandem Miniature Circuit Breaker
- 20/20A
- 2 Pole
- Plug-On
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Siemens Q2020AFCN - 20/20A Combination AFCI | Tandem Miniature Circuit Breaker
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Description
Part of the Siemens QP family, the Q2020AFCN is a tandem combination arc-fault circuit interrupter that provides two 20A circuits in a single space. It eliminates the standard pigtail wire in favor of a plug-on neutral connection, significantly reducing gutter clutter and speeding up residential installations. This breaker mounts into Siemens SN and PN series plug-on neutral load centers. Rated for 10 kAIC at 120VAC, it features advanced arcing detection and an LED trip indicator.Specifications
| Brand | Siemens |
|---|---|
| Part Number | Q2020AFCN |
| Series | Q |
| Amperage | 20/20A |
| Poles | 2 |
| 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 Series, PN Series) |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | AFCI | Tandem |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Load Lug Indicator Flags |
| Standards | HACR, NEC 210.12, SWD, UL 1699, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
7 answersWhat load centers are compatible with the Siemens Q2020AFCN?
The Q2020AFCN is designed exclusively for Siemens Plug-On Neutral load centers, specifically the SN Series and PN Series panels. It will not fit in older panels that require a pigtail neutral connection.
Does this breaker require a neutral pigtail wire?
No, the Q2020AFCN features a Plug-On Neutral design. It connects directly to the neutral bar in compatible Siemens SN and PN series panels, eliminating the need for a pigtail wire and reducing gutter clutter.
Is there a pigtail version of this tandem AFCI breaker available?
Yes, if you are installing in a legacy Siemens panel that does not support Plug-On Neutral breakers, you will need the pigtail version, which is catalog number Q2020AFC.
What types of arc faults does this combination AFCI detect?
As a Combination Type Arc Fault Circuit Interrupter (CAFCI), it is designed to detect all three possible types of arc faults: line-to-ground, line-to-neutral, and series arcs.
How can I verify the load wires are seated correctly during installation?
This breaker features installed indicator flags that disappear when the load wires are inserted correctly into the lugs, providing a visual confirmation of a secure connection.
Does this tandem breaker have LED indicators for troubleshooting?
Yes, it includes built-in LED indicators to help quickly diagnose the source of a fault if the breaker trips.
How does the tandem configuration work on the Q2020AFCN?
The tandem design allows a single breaker position to feed two independent 20-amp circuits. This saves physical space in the load center while providing full combination AFCI protection for both circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 48 reviews.
- DTDawn T.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/8/26Timely
This is exactly what I was looking for! Worked perfectly, arrived promptly, no hassles.
- CGCrocefissa G.Verified BuyerReviewingSiemens Q115 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Quick delivery and great price.
The circuit breakers are at a great cost.
- JBJason B.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Great experience
The product was exactly what I needed and it arrived on time.
- DQDon Q.Verified BuyerReviewingSiemens Q3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/26Siemens breaker
Great customer experience, great prices and fast shipping... Definitely will be buying her again.
- CSChristopher S.Verified BuyerRated 5 out of 5 stars8/12/26Siemens 60
Perfect new condition