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Square D QDA221252 Molded Case Circuit Breaker
- 125A
- 2 Pole
- I-Line
Square D
QDA221252
Molded Case Circuit Breaker
Brand
Square D
SKU
QDA221252
Quantity
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Square D QDA221252 - 125A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D QDA221252 - 125A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Series | QDA |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC |
| Frame Type | QDA |
|---|---|
| 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, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | AC Phase Connection |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip |
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Square D QDA221252 - 125A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | QDA |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC |
| Frame Type | QDA |
|---|---|
| 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, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | AC Phase Connection |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip |
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Description
Engineered for commercial and industrial applications, the Square D QDA221252 is a 2-pole, 125A molded case circuit breaker from the PowerPacT Q-Frame family. It provides robust overcurrent protection with fixed thermal and magnetic trip units. This unit mounts into Square D I-Line panelboards and serves as an exact replacement for the legacy Q221252 breaker. Rated for 25kAIC at 240VAC, it features an AC phase connection and includes load-side lugs accommodating 4 AWG to 300 kcmil wire.Specifications
| Brand | Square D |
|---|---|
| Series | QDA |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC |
| Frame Type | QDA |
|---|---|
| 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, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | AC Phase Connection |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip |
Product FAQs
8 answersWhat type of panelboard is required for the QDA221252 circuit breaker?
This breaker features an I-Line style plug-in connection and is designed exclusively for use in Square D I-Line panelboards and switchboards. It is not compatible with NQ or NF series panels.
What is the recommended tightening torque for the load lugs on this breaker?
The load lugs on the QDA221252 require a tightening torque of 248 lb-in (28 N.m) for 4 AWG to 300 kcmil aluminum or copper wire.
Can the QDA221252 be used to replace an older Q2 series breaker?
Yes, PowerPacT Q-frame circuit breakers are direct replacements for legacy Square D Q2 series devices of the same pole and amperage configuration.
Is the QDA221252 rated for use in DC voltage systems?
No, PowerPacT Q-frame circuit breakers are designed and rated strictly for AC systems up to 240VAC. They do not carry a DC voltage rating.
Can this I-Line circuit breaker be reverse fed?
Yes, Square D PowerPacT Q-frame I-Line breakers can be reverse fed for supply side applications, provided they are properly marked as a main breaker in accordance with panelboard requirements.
What is the difference between the QDA221252 and the QGA221252?
The difference is the interrupting rating. The QDA221252 has a 25kAIC rating at 240VAC, while the QGA221252 has a higher 65kAIC rating at 240VAC. Both share the same physical footprint and I-Line mounting.
Does this breaker require a separate mounting bracket for installation in an I-Line panel?
No, the QDA221252 features an integral I-Line plug-on bracket on the line side that mounts directly to the panelboard bus stack. No additional mounting hardware is required.
Are the trip settings on the QDA221252 adjustable?
No, this breaker uses a thermal magnetic trip unit with fixed Long-Time and Instantaneous protection. The thermal and magnetic trip points are factory set and non-adjustable.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 6 reviews.
Total 5 star reviews: 6 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
6 reviews
- CBCarl B.Verified BuyerReviewingSquare D QDA32125 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/11/26Sq. D I-line
Price was fair for these New Breakers. More importantly, is the avaiability and not having to deal with long lead times
- CSClaus S.Verified BuyerReviewingSquare D QDA32100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/3/26100A 3 phase Breaker
Priced right and shipping was really Quick. I will use them again!!
- CGChase G.ReviewingSquare D QDA32150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/16/22Always have what I need
5 stars Super Breaker always has what I need, and at a good price.
- CGChristopher G.ReviewingSquare D QDA32100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/11/21speedy service. great quality
speedy service. great quality
- RSRandy S.ReviewingSquare D QDA32225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/19Super
Quick Shipping and great price