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Square D Q221200AB Molded Case Circuit Breaker
- 200A
- 2 Pole
- I-Line
Square D
Q221200AB
Molded Case Circuit Breaker
Brand
Square D
SKU
Q221200AB
Quantity
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Square D Q221200AB - 200A 2 Pole Molded Case Circuit Breaker
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Square D Q221200AB - 200A 2 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | Q221200AB |
| Series | Q2 |
| Amperage | 200A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q221 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Phase Connection AB |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator |
Sold out
Quantity
Square D Q221200AB - 200A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | Q2 |
| Amperage | 200A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q221 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Phase Connection AB |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator |
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200A 2 Pole Molded Case Circuit Breaker
Description
A drop-in solution for industrial facilities, the Square D Q221200AB is a 2-pole, 200A molded case circuit breaker. It provides long-time and instantaneous (LI) protection for 120/240VAC systems. This unit features an I-Line plug-on connection configured for phases A and B, allowing rapid installation into Square D I-Line panelboards and switchboards. As a legacy Q-frame device, it is replaced by the modern PowerPact QBA22200. It includes a Visi-Trip indicator for easy maintenance.Specifications
| Brand | Square D |
|---|---|
| Series | Q2 |
| Amperage | 200A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q221 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Phase Connection AB |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator |
Product FAQs
7 answersWhich panelboards accept the Q221200AB circuit breaker?
The Q221200AB is built specifically for Square D I-Line panelboards and switchboards. It utilizes a plug-on mounting system that connects directly to the I-Line bus assembly.
What does the AB suffix indicate on the Q221200AB?
The AB suffix specifies the phase connection. This 2-pole breaker is factory-configured to draw power from the A and B phases of the I-Line bus.
What wire gauge is required for the load lugs on the Q221200AB?
The standard load-side lugs accommodate either aluminum or copper conductors ranging from 4 AWG up to 300 kcmil.
Is there a modern equivalent for the legacy Q221200AB?
Yes, the legacy Q2 frame has been superseded by the Square D PowerPact Q-frame series. The modern direct replacement is the PowerPact QBA22200.
What type of protection does the Q221200AB trip unit provide?
It is equipped with a fixed thermal-magnetic trip unit that delivers standard long-time and instantaneous (LI) protection for 120/240V AC systems.
Is the Q221200AB suitable for 480V applications?
No, this breaker is strictly rated for 120/240V AC systems, where it provides a 10kA interrupting capacity. It cannot be used on 480V or 600V distribution systems.
Does the Q221200AB feature a visual trip indicator?
Yes, this breaker includes a Visi-Trip indicator, which provides a clear visual confirmation when the breaker has tripped, simplifying maintenance and troubleshooting.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 8 reviews.
Total 5 star reviews: 8 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
8 reviews
- MEMichael E.Verified BuyerReviewingSquare D Q221150AC - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/28/26breaker purchase
delivered on time and quality was as advertised
- MWmakalita w.Verified BuyerReviewingSquare D Q232150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/18/26Prompt service.
Well packaged
- GSGreg S.Verified BuyerReviewingSquare D Q232200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/29/25Great Job
Whenever I need a breaker and my local distributor can't handle or get what I need, Superbreakers has always come through for us.
- AWAllen W.ReviewingSquare D Q232175 - 175A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/17/22Great condition
The breakers were in great condition. The serve was also great.
- JCJim C.ReviewingSquare D Q232200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/13/22Great Service
My order was received fast. The packaging was perfect. The quality of the product was what was expected.