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Square D HDA261252 Molded Case Circuit Breaker
- 125A
- 2 Pole
- I-Line
Square D
HDA261252
Molded Case Circuit Breaker
Brand
Square D
SKU
HDA261252
Quantity
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Square D HDA261252 - 125A 2 Pole Molded Case Circuit Breaker
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Description
Built for robust power distribution, the HDA261252 is a 2-pole, 125A molded case circuit breaker from Square D's PowerPacT H-Frame lineup. It provides dependable thermal-magnetic protection with fixed thermal and adjustable magnetic trip settings. This breaker mounts into Square D I-Line panelboards and switchboards, utilizing an AC phase connection. It is an exact substitute for the discontinued KA26125AC model.Specifications
| Brand | Square D |
|---|---|
| Part Number | HDA261252 |
| Series | HDA |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HDA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle, Lug Kits, Terminal Shields |
|---|---|
| Accessories | Phase Connection AC |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UKCA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip, 80% Rated, Phase Connection AC |
Product FAQs
8 answersWhat older Square D circuit breakers can the HDA261252 replace?
The HDA261252 is an exact substitute for the discontinued KA26125AC model. Additionally, PowerPacT H-frame breakers can often replace obsolete F-frame (FA or FH) I-Line breakers in older QED switchboards and I-Line panelboards.
Which panelboards accept the HDA261252 circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It will not fit in standard load centers or NQ/NF panelboards.
What does the 2 at the end of the HDA261252 catalog number indicate?
The final digit specifies the busbar phase connection. For this 2-pole breaker, the 2 indicates it is configured for an A and C phase connection on the I-Line bus.
How does the I-Line connection work on this breaker?
The breaker features a plug-on line side that connects directly to the I-Line bus stack. The load side is equipped with factory-installed mechanical lugs for securing the outgoing conductors.
What wire sizes are compatible with the load-side lugs?
The standard mechanical lugs accept wire sizes ranging from 14 AWG to 3/0 AWG. They are rated for use with both aluminum and copper conductors.
Is the trip unit on the HDA261252 adjustable?
Yes, it features a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element for short-circuit protection. The magnetic trip range is adjustable from 900A to 1700A.
What does the D in the HDA prefix signify?
The D designates the interrupting rating tier within the PowerPacT H-Frame family. It indicates a standard breaking capacity, which provides 18kA of fault protection at 480VAC, distinguishing it from higher-rated G, J, or L models.
Does the PowerPacT H-Frame design offer current-limiting features?
Yes, these breakers are equipped with dual-break rotating contacts that significantly reduce the amount of peak current and let-through energy during a short-circuit fault.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 11 reviews.
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11 reviews
- JGJanier G.Verified BuyerReviewingSquare D HDA36030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/4/26Fast and good quality every time
Everything came in good quality
- ESEvan S.ReviewingSquare D HDA36060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/2/24Perfect!
Worked exactly as expected. Working with my rep was extremely pleasant and look forward to doing more business with Superbreakers in the future!
- MPMike P.ReviewingSquare D HDA36150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/23/22Great Job
Keep up the good work
- JKJoe K.ReviewingSquare D HDA36100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/24/21Quick shipper
Product arrived perfectly packaged and on time.
- TWTodd W.ReviewingSquare D HDA36030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/25/20always quality always on time
always quality
always on time