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Square D QDA221254 Molded Case Circuit Breaker
- 125A
- 2 Pole
- I-Line
Square D
QDA221254
Molded Case Circuit Breaker
Brand
Square D
SKU
QDA221254
Quantity
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Square D QDA221254 - 125A 2 Pole Molded Case Circuit Breaker
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Description
Belonging to the PowerPacT Q-Frame family, the Square D QDA221254 is a 125A, 2-pole molded case circuit breaker designed for commercial and industrial applications. This unit utilizes an I-Line plug-on connection for quick installation into compatible Square D I-Line panelboards and switchboards. It replaces the older Q221254 catalog number. It delivers a 25kAIC interrupt rating at 240VAC and features fixed thermal-magnetic trip units (LI) with a BC phase connection.Specifications
| Brand | Square D |
|---|---|
| Part Number | QDA221254 |
| 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, Square D I-Line 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs Included |
| 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 |
Product FAQs
6 answersWhat panels are compatible with the Square D QDA221254 circuit breaker?
The QDA221254 is an I-Line style plug-in breaker designed exclusively for Square D I-Line panelboards and switchboards. It cannot be installed in standard QO, Homeline, or NQ/NF panels.
What does the "4" at the end of the QDA221254 catalog number indicate?
In Square D's I-Line nomenclature, the final digit indicates the phase connection. The "4" in QDA221254 specifies a BC phase connection on the panel bus.
How much mounting space does the QDA221254 require in an I-Line panel?
I-Line circuit breakers require 1.5 inches of bus mounting space per pole. As a 2-pole breaker, the QDA221254 takes up 3 inches of total mounting space.
Can the QDA221254 be reverse fed in an I-Line panelboard?
Yes, PowerPacT Q-frame I-Line breakers are suitable for reverse feeding. When used as a back-fed main breaker to energize the panel bus, it must be properly secured and labeled as the main breaker to meet code requirements.
Can the QDA221254 replace older Q-frame breakers?
Yes, the PowerPacT QDA221254 is a direct replacement for the legacy Square D Q221254 circuit breaker.
How does the QDA221254 connect to the panel and the load?
The line side features a plug-on I-Line connection that attaches directly to the panelboard bus. The load side uses factory-installed mechanical lugs that accept 4 AWG to 300 kcmil aluminum or copper wire.
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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