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Square D HJA260404 Molded Case Circuit Breaker
- 40A
- 2 Pole
- I-Line
Square D
HJA260404
Molded Case Circuit Breaker
Brand
Square D
SKU
HJA260404
Quantity
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Square D HJA260404 - 40A 2 Pole Molded Case Circuit Breaker
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Description
Designed for seamless integration into Square D distribution systems, the HJA260404 is a 40-amp, 2-pole PowerPacT H-frame circuit breaker. It delivers dependable long-time and instantaneous (LI) protection for heavy-duty commercial and industrial applications. This unit mounts into I-Line switchboards and panelboards, utilizing a dedicated BC phase jaw configuration. It acts as an exact substitute for legacy FA26040BC and FH26040BC breakers.Specifications
| Brand | Square D |
|---|---|
| Part Number | HJA260404 |
| Series | HJA |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | H |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-3/0 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 | BC Phase Jaw Configuration |
| 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 | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersWhat does the "A" in the HJA260404 part number indicate?
The "A" signifies an I-Line style plug-on connection. This allows the breaker to mount directly onto the bus of Square D I-Line panelboards and switchboards.
What does the final "4" in the HJA260404 catalog number mean?
The "4" specifies a BC phase connection. This means the 2-pole breaker is factory-configured to connect exclusively to the B and C phases of the I-Line panelboard bus.
Can I install this breaker in a standard QO or Homeline load center?
No. The HJA260404 is a PowerPacT H-frame breaker with an I-Line mounting style. It is only compatible with Square D I-Line panelboards and switchboards.
What tool is required to tighten the standard AL150HD lugs on this breaker?
You will need a 3/16 inch Allen wrench to secure the wire binding screws on the AL150HD mechanical lugs.
What are the torque specifications for the AL150HD lugs on the HJA260404?
Using a 3/16 inch Allen wrench, torque the lugs to 50 in-lbs for 14 to 10 AWG wire, and 120 in-lbs for 8 to 3/0 AWG wire. Always verify against the label on the breaker before installation.
Is the HJA260404 a direct replacement for older Square D breakers?
Yes. This PowerPacT H-frame breaker serves as an exact substitute for legacy FA26040BC and FH26040BC circuit breakers in I-Line panels.
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Reviews
Review summary
Customers rate this product 4.7 out of 5 based on 15 reviews.
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Rating
15 reviews
- RFRon F.Verified BuyerReviewingSquare D HJA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/27/26Square D HJA36050 review
The delivery was on and exactly what I ordered as usual. I highly recommend Super Breakers!
- CMChris M.Verified BuyerReviewingSquare D HJA36080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/23/26Quick delivery
Everything arrived correctly and on time.
- HEHeineken E.Verified BuyerReviewingSquare D HJA36150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/9/26Quick Delivery
Good condition Quick Delivery
- JBJosh B.Verified BuyerReviewingSquare D HJA36060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/30/26Quick Shipping
Breaker showed up quickly and as described.
- JCJoe C.Verified BuyerReviewingSquare D HJA36035 - 35A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars7/29/25HJA
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