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Square D QO120VH Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Square D
QO120VH
Miniature Circuit Breaker
Brand
Square D
SKU
QO120VH
Quantity
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Square D QO120VH - 20A 1 Pole Miniature Circuit Breaker
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Description
Delivering enhanced fault protection, this 20-amp high-interrupting device features a 22kAIC rating for demanding residential and commercial applications. It mounts into standard QO load centers, NQ panelboards, and legacy NQOD enclosures. The unit incorporates Square D's signature Visi-Trip indicator to clearly flag tripped circuits, alongside an SWD rating that approves it for daily switching of fluorescent lighting circuits.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO120VH |
| Series | QO |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | QO |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | QO Load Centers, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment, Handle Tie |
|---|---|
| Accessories | Visi-Trip Indicator |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, High Interrupting Capacity, HACR Rated, SWD Rated, Mercury Free, RoHS Compliant |
Product FAQs
6 answersWhat is the difference between the Square D QO120 and the QO120VH?
The "VH" suffix indicates a higher interrupting rating. The QO120VH is rated for 22kAIC at 120/240VAC, while the standard QO120 is rated for 10kAIC. Both are 20A, 1-pole breakers that fit the same panels.
Can I install the QO120VH in a Square D Homeline panel?
No. QO series breakers, including the QO120VH, are not interchangeable with Homeline (HOM) breakers. This breaker is designed exclusively for QO load centers, NQ panelboards, and legacy NQOD panelboards.
What is the recommended terminal torque for the QO120VH circuit breaker?
The pressure plate terminals on the QO120VH should be torqued to 40.7 lb-in (4.6 N.m) for secure connections with 14 to 8 AWG copper or aluminum wire.
Is the QO120VH rated for switching fluorescent lighting loads?
Yes, this breaker is SWD (Switching Duty) rated, making it suitable for the daily switching of 120V fluorescent lighting circuits.
Does the QO120VH carry an HACR rating for HVAC equipment?
Yes, it is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires HACR type circuit breakers.
How can I tell if the QO120VH has tripped?
This breaker features the Square D Visi-Trip indicator. When the breaker trips due to an overload or short circuit, the handle moves to a center position and a highly visible red indicator appears in a small window.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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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