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Square D HDA260251 Molded Case Circuit Breaker
- 25A
- 2 Pole
- I-Line
Square D
HDA260251
Molded Case Circuit Breaker
Brand
Square D
SKU
HDA260251
Quantity
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Square D HDA260251 - 25A 2 Pole Molded Case Circuit Breaker
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Description
Part of the Square D PowerPacT H-Frame lineup, the HDA260251 delivers 25A of thermal-magnetic protection across two poles. It features an AB phase connection and provides long-time and instantaneous (LI) trip functions for commercial distribution. Engineered for seamless integration, this breaker mounts into Square D I-Line panelboards and switchboards. It serves as a replacement for the legacy FA26025AB. This unit offers an 18kAIC rating at 480VAC and 14kAIC at 600VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | HDA260251 |
| Series | HDA |
| Amperage | 25A |
| 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 |
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
8 answersWhat panelboards are compatible with this breaker?
This breaker mounts directly into Square D I-Line panelboards and switchboards.
Can this 2-pole breaker be installed in a 3-phase I-Line panel?
Yes. The "1" suffix in the HDA260251 catalog number indicates it is configured for an AB phase connection, allowing it to draw power from two phases of a 3-phase I-Line bus.
What is the recommended tightening torque for the load lugs?
For the standard AL150HD lugs, the required torque is 44 lb-in (5 N.m) for 14 to 10 AWG wire, and 124 lb-in (14 N.m) for 8 to 3/0 AWG wire.
Do I need a separate mounting bracket to install this breaker?
No. I-Line breakers feature a plug-on design that connects directly to the bus stack. They are secured using a retaining bracket and screw built into the panelboard.
What does the "D" in the HDA prefix signify?
The "D" indicates the interrupting rating tier within the PowerPacT H-Frame family. D-tier breakers provide 25kA at 240V, 18kA at 480V, and 14kA at 600V.
What is the difference between the HDA260251 and HGA260251?
Both are 25A, 2-pole, H-Frame I-Line breakers, but they have different interrupting ratings. The HDA is rated for 18kA at 480V, while the HGA is a higher-tier breaker rated for 35kA at 480V.
Can the HDA260251 replace older FA series breakers?
Yes, the PowerPacT H-Frame is the direct replacement for legacy Square D FA-frame breakers. The HDA260251 can replace an FA26025AB in I-Line panels.
Does this breaker provide GFCI or equipment protection (EPD)?
No. This breaker features a standard thermal-magnetic trip unit (LI) for overload and short-circuit protection. It does not include ground fault protection.
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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