Square D QO220CAFI AFCI Miniature Circuit Breaker
- 20A
- 2 Pole
- Plug-On
Square D
QO220CAFI
AFCI Miniature Circuit Breaker
Brand
Square D
SKU
QO220CAFI
Quantity
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Square D QO220CAFI - 20A AFCI Miniature Circuit Breaker
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Description
Part of Square D's renowned QO series, the QO220CAFI is a 2-pole, 20A miniature circuit breaker providing combination arc-fault (CAFI) protection. It detects both series and parallel arcing conditions for superior electrical safety. Designed with a standard pigtail neutral connection, this unit mounts into Square D QO load centers and NQ panelboards. It is an excellent choice for securing 240V branch circuits. Rated at 10 kAIC, it features the exclusive Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO220CAFI |
| Series | QO |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Load Centers, NQ Panelboards |
| 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | AFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 5, UL 489, UL 1699 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhich electrical panels are compatible with the QO220CAFI circuit breaker?
This breaker is designed exclusively for Square D QO load centers and NQ panelboards. It features a 3/4 inch width per pole and will not fit Homeline or other manufacturer panels.
Does the QO220CAFI feature a plug-on neutral connection?
No, this model uses a standard pigtail neutral. It requires you to manually connect the attached coiled white wire to the neutral bus bar in your panel.
Is there a plug-on neutral equivalent for the QO220CAFI?
Yes. If you have a plug-on neutral compatible QO load center, you can use catalog number QO220PCAFI, which eliminates the need for the pigtail wire.
What is the recommended terminal tightening torque for this breaker?
The box lug terminals should be torqued to 35.4 lb-in (4 N.m) for secure connections.
What does Combination Arc Fault (CAFI) protection mean?
A combination arc fault breaker detects both parallel arcs (between two different wires) and series arcs (along a single broken or damaged wire), providing comprehensive protection against electrical fires.
Can this 2-pole CAFI breaker be used for multi-wire branch circuits?
Yes, 2-pole combination arc fault breakers are frequently used to protect 240V loads or 120V multi-wire branch circuits (shared neutral applications) to meet modern NEC requirements.
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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.
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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