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Square D Q232125H Molded Case Circuit Breaker
- 125A
- 3 Pole
- I-Line
Square D
Q232125H
Molded Case Circuit Breaker
Brand
Square D
SKU
Q232125H
Quantity
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Square D Q232125H - 125A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for heavy-duty use, the Square D Q232125H is a 125A, 3-phase molded case circuit breaker. Belonging to the legacy Q2 series, it delivers fixed thermal and magnetic protection (LI) for commercial facilities. Designed specifically for Square D I-Line panelboards, it utilizes a plug-on jaw design for secure mounting. For facilities upgrading their infrastructure, this unit is officially replaced by the newer QDA32125 model.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q232125H |
| Series | Q2 |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Frame Type | Q232 |
|---|---|
| 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 | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, High Interrupting Capacity |
Product FAQs
5 answersWhat is the modern replacement for the Q232125H circuit breaker?
The Q232125H is a legacy Q2 series breaker that has been replaced by the newer PowerPact Q-frame model, part number QDA32125. The QDA32125 offers a 25kAIC rating to meet or exceed the original high interrupting capacity specifications.
Which panelboards are compatible with the Q232125H?
This breaker is designed specifically for use in Square D I-Line panelboards and switchboards, utilizing a plug-on jaw design for secure mounting directly to the busbar.
What does the H in the Q232125H part number signify?
The H indicates a high interrupting capacity. While standard Q2 breakers typically offer 10kAIC, the Q232125H provides a 22kAIC rating at 240VAC.
How much bus space does the Q232125H require in an I-Line panelboard?
As a 3-pole Q-frame breaker, it requires 4.5 inches of mounting space on the panelboard bus.
Are the trip settings on the Q232125H adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit, meaning the long-time and instantaneous trip functions cannot be adjusted in the field.
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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.