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Square D QBA221102 Molded Case Circuit Breaker
- 110A
- 2 Pole
- I-Line
Square D
QBA221102
Molded Case Circuit Breaker
Brand
Square D
SKU
QBA221102
Quantity
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Square D QBA221102 - 110A 2 Pole Molded Case Circuit Breaker
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Description
Built for industrial power systems, the QBA221102 is a 2-pole molded case circuit breaker manufactured by Square D. Designed specifically for I-Line panelboards, this breaker utilizes an AC phase connection. It replaces the older Q22110 model and serves as a substitute for the QDA221102. The breaker delivers a 10kAIC interrupting rating at 240VAC and utilizes fixed thermal and magnetic (LI) trip units. A built-in Visi-Trip indicator allows personnel to easily spot tripped circuits.Specifications
| Brand | Square D |
|---|---|
| Part Number | QBA221102 |
| Series | QBA |
| Amperage | 110A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | QBA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Phase Connection: AC |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Phase Connection AC, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Visual Trip Indicator |
Product FAQs
8 answersWhat panelboards are compatible with the QBA221102 circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features a plug-on line connection and will not fit in standard NQ, NF, or QO enclosures.
What do the letters in the QBA221102 catalog number mean?
The letter 'Q' identifies the PowerPacT Q-frame family. 'B' denotes the standard interrupting rating of 10kAIC at 240VAC. 'A' indicates an I-Line plug-on mounting style with a standard ABC phase jaw configuration.
Can the QBA221102 replace older legacy breakers?
Yes, the PowerPacT Q-frame series serves as a direct replacement for legacy Square D Q2 series circuit breakers, such as the obsolete Q22110.
What is the difference between the QBA221102 and the QDA221102?
Both are 110A, 2-pole I-Line breakers, but they have different interrupting ratings. The QBA221102 has a standard 10kAIC rating at 240V, while the QDA221102 features a higher 25kAIC rating. The QDA221102 can be used as a substitute if a higher fault current rating is acceptable for your application.
How much bus space does this 2-pole breaker occupy in an I-Line panel?
The QBA221102 requires 3 inches of mounting space on the I-Line bus, as each pole of a Q-frame breaker is 1.5 inches wide.
Is the QBA221102 suitable for reverse feeding?
No. Because this breaker utilizes an I-Line plug-on jaw for the line-side connection, it is physically restricted to a forward-fed orientation and cannot be reverse fed.
Does this breaker include a Visi-Trip indicator?
Yes, Square D PowerPacT Q-frame breakers feature a built-in Visi-Trip visual indicator, allowing personnel to quickly identify a tripped breaker in a crowded panelboard.
Does the QBA221102 provide ground fault protection?
No. This breaker is equipped with a standard fixed thermal-magnetic trip unit (Long-Time and Instantaneous) for overload and short-circuit protection. It does not provide ground fault (GFCI) or equipment protection (EPD).
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Reviews
Review summary
Customers rate this product 4.6 out of 5 based on 12 reviews.
Total 5 star reviews: 10 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
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Rating
12 reviews
- DMDonaldo M. A.Verified BuyerReviewingSquare D QBA32125 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/7/26Fast, Easy and Great Item
I bought this item for the first time and it was great! through the website it was easy to find my exact item and also the payment was easy to submit, deliver was on point.
Great company and products.
- KPKevin P.Verified BuyerReviewingSquare D QBA32200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/5/26Sq D I line breaks
Great price and is exactly what was discribed
- DDDavid D.Verified BuyerReviewingSquare D QBA32110 - 110A 3 Pole Molded Case Circuit BreakerI do not recommend this productRated 1 out of 5 stars1/20/26Breaker
Need to return this item.
- DMDave M.Verified BuyerReviewingSquare D QBA32150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/12/25Excellent All Around
Speedy shipping and great staff to work with.
- DBDoug B.ReviewingSquare D QBA32200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/28/23Great service, great item!
Great service, great item!