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Square D HDA260404 Molded Case Circuit Breaker
- 40A
- 2 Pole
- I-Line
Square D
HDA260404
Molded Case Circuit Breaker
Brand
Square D
SKU
HDA260404
Quantity
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Square D HDA260404 - 40A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial power distribution, the Square D HDA260404 operates as a 2-pole, 40A molded case circuit breaker within the PowerPacT H-Frame family. It delivers reliable thermal-magnetic protection with fixed long-time and instantaneous (LI) trip functions. This unit installs into Square D I-Line panelboards and switchboards, utilizing a plug-on design for rapid deployment.Specifications
| Brand | Square D |
|---|---|
| Part Number | HDA260404 |
| Series | HDA |
| Amperage | 40A |
| 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 | H |
|---|---|
| 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 |
|---|---|
| Accessories | Phase Connection BC |
| 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, Reverse Feed |
Product FAQs
6 answersWhich panelboards are compatible with the HDA260404 circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-on phase connection and cannot be installed in standard QO, Homeline, or NQ/NF load centers.
What does the D in the HDA260404 part number signify?
In the Square D PowerPacT H-frame series, the D indicates the interrupting rating level. A D-rated breaker provides 18 kA at 480 VAC. Higher interrupting ratings are available in the G, J, and L tier models if your system requires a higher fault current capacity.
How are the phase connections secured on this I-Line breaker?
The HDA260404 uses the I-Line plug-on mounting system. The breaker jaws push directly onto the panelboard bus stack, and the unit is then secured to the deadfront bracket with a retaining screw. This allows for faster installation compared to traditional bolt-on breakers.
Can the HDA260404 be used in DC applications?
Yes, this thermal-magnetic breaker is rated for DC systems up to 250 VDC, providing a 20 kA interrupting rating. It is suitable for various industrial DC control and distribution circuits.
What type of wire is required for the load lugs?
The factory-installed lugs accept 14 AWG to 3/0 AWG aluminum or copper wire. Always refer to the label on the side of the breaker for the exact torque specifications, as they vary based on the wire gauge and material used.
What safety precautions should be taken before installing this I-Line breaker?
Always de-energize the panelboard before installing or removing any circuit breaker. Ensure you are wearing the appropriate personal protective equipment (PPE) as required by NFPA 70E, and verify the bus is completely powered down using a properly rated voltage tester.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 11 reviews.
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Rating
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