Square D QO120VHPCAFI AFCI Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
Square D QO120VHPCAFI - 20A AFCI Miniature Circuit Breaker
New
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Description
Engineered for residential and commercial applications, the QO120VHPCAFI is a 1-pole, 20A Square D miniature circuit breaker. It delivers combination arc-fault (CAFI) protection to meet modern NEC safety requirements. Featuring a plug-on neutral design, it eliminates the pigtail wire and mounts into Square D QO plug-on neutral load centers. It serves as an upgraded substitute for older QO120VHPAF models. Rated at 22 kAIC, it includes the Visi-Trip indicator for quick fault identification.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO120VHPCAFI |
| Series | QO |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | Square D 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | AFCI |
|---|---|
| Available Options | Padlock Attachment, Shunt Trip, Auxiliary Switch, Alarm Switch |
| Standards | CSA C22.2 No. 5, HACR, RoHS, UL 489, UL 1699 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
7 answersWhat type of panel is required for the QO120VHPCAFI breaker?
This breaker is specifically designed for Square D QO Plug-On Neutral load centers. It features a plug-on neutral connection that attaches directly to the panel's neutral bar, meaning it cannot be used in older QO panels that require a pigtail neutral.
What does the "VH" in the QO120VHPCAFI catalog number indicate?
The "VH" designates an upgraded interrupting rating of 22kAIC at 120V. Standard QO arc fault breakers typically have a 10kAIC rating. The higher 22kAIC rating is often required in commercial applications or residential services located close to a utility transformer with higher available fault current.
What is the difference between the QO120VHPCAFI and the QO120PCAFI?
The QO120VHPCAFI has a higher interrupting rating of 22kAIC at 120V, indicated by the "VH" in the catalog number. The standard QO120PCAFI has a 10kAIC rating. Both are 20A, 1-pole, plug-on neutral combination arc fault breakers.
What is the difference between a standard AFCI and a Combination Arc Fault (CAFI) breaker?
A Combination Arc Fault Circuit Interrupter (CAFI), like the QO120VHPCAFI, detects both parallel arcs (between two wires) and series arcs (along a single damaged wire or loose connection). This provides more comprehensive fire protection than older branch-feeder AFCI breakers.
What wire sizes are accepted by the terminals on this breaker?
The pressure plate terminals on the QO120VHPCAFI accommodate 14 to 8 AWG copper wire, or 12 to 8 AWG aluminum wire.
How does the plug-on neutral design change the installation process?
The plug-on neutral (PoN) design eliminates the traditional coiled pigtail wire. The breaker connects directly to the neutral bar of a compatible QO PoN load center, which saves installation time and reduces wire clutter inside the panel gutter.
Can I install this QO breaker in a Square D Homeline load center?
No. Square D QO and Homeline series are not interchangeable. The QO120VHPCAFI has a 3/4-inch format and a specific mounting clip that will only fit QO series panels.
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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