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Square D QBA221503 Molded Case Circuit Breaker
- 150A
- 2 Pole
- I-Line
Square D
QBA221503
Molded Case Circuit Breaker
Brand
Square D
SKU
QBA221503
Quantity
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Square D QBA221503 - 150A 2 Pole Molded Case Circuit Breaker
Re-Certified
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Square D QBA221503 - 150A 2 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | QBA221503 |
| Series | QBA |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 208Y/120VAC, 10kA @ 240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG-300 kcmil |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, Phase Connection BA, 80% Rated |
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Square D QBA221503 - 150A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QBA221503-R |
| Series | QBA |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 208Y/120VAC, 10kA @ 240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG-300 kcmil |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, Phase Connection BA, 80% Rated |
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Description
Providing 150 amps of thermal-magnetic protection, the QBA221503 is a 2-pole MCCB from the Square D PowerPacT Q-Frame lineup. It offers reliable LI trip functions. This unit installs into Square D I-Line panelboards. It features a BA phase connection and serves as a replacement for legacy Q22150 breakers, ensuring seamless upgrades. Capable of handling 10kAIC at 240VAC, the breaker includes a Visi-Trip indicator for rapid fault detection. It substitutes for the QDA221503.Specifications
| Brand | Square D |
|---|---|
| Part Number | QBA221503-R |
| Series | QBA |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 208Y/120VAC, 10kA @ 240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG-300 kcmil |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, Phase Connection BA, 80% Rated |
Product FAQs
6 answersWhat panelboards accept the QBA221503 circuit breaker?
This PowerPacT Q-Frame breaker is designed specifically for installation in Square D I-Line panelboards and switchboards. It utilizes an I-Line style plug-in connection.
Can the QBA221503 be used to replace legacy Square D breakers?
Yes, this breaker serves as a direct replacement for legacy Square D Q22150 circuit breakers, providing a seamless upgrade path for older I-Line systems.
What specific phase connection does the QBA221503 utilize?
This 2-pole breaker is configured for a BA phase connection. In the Square D I-Line catalog numbering system, the terminal digit 3 designates the BA phasing.
What wire gauge range is supported by the QBA221503 lugs?
The standard lugs on this breaker accommodate wire sizes from 4 AWG up to 300 kcmil.
How does the QBA221503 indicate a tripped condition?
It is equipped with a Visi-Trip indicator. When the breaker trips due to an overload or short circuit, this visual indicator provides rapid fault detection without needing to test the circuit.
What type of protection does the thermal-magnetic trip unit provide?
The fixed thermal-magnetic trip unit includes Long-Time and Instantaneous (LI) functions. The thermal component protects against sustained overloads, while the magnetic component responds immediately to short circuits.
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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!