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Square D QO2020CP 20/20A Tandem Miniature Circuit Breaker
- 20/20A
- 1 Pole
- Plug-On
Square D
QO2020CP
20/20A Tandem Miniature Circuit Breaker
Brand
Square D
SKU
QO2020CP
Quantity
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Square D QO2020CP - 20/20A Tandem Miniature Circuit Breaker
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Description
Engineered as a direct replacement for legacy systems, the Square D QO2020CP is a non-CTL tandem breaker delivering two 20A circuits from one space. It provides essential protection for older electrical setups. Lacking a rejection clip, this unit mounts into pre-1968 Square D QO load centers without pan rail slots. It is the correct choice for expanding capacity in older, non-notched panels. The breaker features the exclusive Visi-Trip visual indicator for rapid fault identification.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO2020 |
| Series | QO |
| Amperage | 20/20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Pressure Plate |
|---|---|
| For Use With | Old Non-Class CTL QO Load Centers |
| 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 |
| Special Classification | Tandem |
|---|---|
| Available Options | Padlock Attachment |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, Tandem, HACR Rated, Mercury Free |
Product FAQs
8 answersWhat is the difference between the QO2020 and QO2020CP?
The QO2020 and QO2020CP are the exact same circuit breaker. The CP suffix indicates commercial packaging, typically a blister pack, rather than standard bulk packaging.
What is the difference between the QO2020CP and QOT2020?
The QO2020CP is a non-CTL tandem breaker without a mounting hook, designed for older legacy panels. The QOT2020 is a Class CTL tandem breaker that includes a rejection clip to prevent installation in panel spaces not rated for tandem breakers.
Which load centers are compatible with the QO2020CP tandem breaker?
This non-CTL breaker is designed exclusively for older Square D QO load centers built before 1968 that do not feature notched pan rails. It will not fit in modern Class CTL panels that require a rejection clip.
Can I install the QO2020CP in a Square D Homeline panel?
No. QO and Homeline breakers are not interchangeable. The QO2020CP is designed only for QO load centers. For a Homeline panel, you would need a Homeline tandem breaker such as the HOMT2020CP.
How many panel spaces does the QO2020CP require?
This tandem breaker provides two independent 20-amp circuits while occupying only one standard 3/4-inch space in a QO load center.
Can I use the QO2020CP to supply a 240V circuit?
No. The QO2020CP is a tandem breaker that provides two independent 120V circuits on the same phase. It cannot be used for 240V applications that require a two-pole breaker across two phases.
Does the QO2020CP feature a visual trip indicator?
Yes, it includes the Square D Visi-Trip indicator. When the breaker trips, a highly visible red flag appears in the indicator window, allowing for rapid fault identification in the panel.
Is the QO2020CP HACR rated?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific overcurrent protection rating.
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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