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Square D QO2100CP Miniature Circuit Breaker
- 100A
- 2 Pole
- Plug-On
Square D
QO2100CP
Miniature Circuit Breaker
Brand
Square D
SKU
QO2100CP
Quantity
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Square D QO2100CP - 100A 2 Pole Miniature Circuit Breaker
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Description
Supplied in convenient retail packaging, the QO2100CP delivers 100 amps of protection for residential and commercial systems. It provides 10kA short-circuit capacity, suitable for feeding subpanels or large appliances. This unit snaps into Square D QO load centers, NQ, and legacy NQOD panelboards. It serves as a direct substitute for the standard bulk-packaged QO2100. A built-in Visi-Trip indicator reveals a bright red flag when the breaker trips, simplifying troubleshooting in dark rooms.Specifications
| Brand | Square D |
|---|---|
| Part Number | QO2100 |
| Series | QO |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 10kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | QO Load Centers, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 4 AWG - 2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Common Trip, Consumer Pack |
Product FAQs
6 answersIs there a difference between the QO2100 and QO2100CP?
Both part numbers represent the exact same circuit breaker [1.1.1]. The "CP" suffix simply indicates consumer or commercial blister packaging, while the standard QO2100 ships unboxed in bulk trays.
Will the QO2100CP fit into a Square D Homeline panel?
No. QO series breakers are built on a 3/4-inch format and will not fit Homeline load centers, which are designed exclusively for 1-inch format breakers.
Can I use this plug-on breaker in a bolt-on NQ panelboard?
No. If your specific panel interior requires a bolt-on connection to the busbar, you must source the QOB2100 instead. The QO2100CP is strictly a plug-on device.
How much space does the QO2100CP require in a load center?
This 2-pole breaker requires two adjacent 3/4-inch panel spaces, occupying 1.5 inches of total width on the busbar.
Is this 100A breaker suitable for HVAC equipment?
Yes. The QO2100CP is HACR rated, meaning it is certified for use with compatible heating, air conditioning, and refrigeration motor loads.
Does the QO2100CP feature a tripped circuit indicator?
Yes. It includes the Square D Visi-Trip red indicator flag, which appears in the window when the breaker trips to help you easily identify the interrupted circuit.
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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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All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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