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Square D BDA260402 Molded Case Circuit Breaker
- 40A
- 2 Pole
- I-Line
Square D
BDA260402
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA260402
Quantity
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Square D BDA260402 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
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Square D BDA260402 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | BDA260402 |
| Series | BDA |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 10kA @ 250VDC |
| Frame Type | BDA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 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, Rotary Handle |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Visual Trip Indicator |
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Square D BDA260402 - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | BDA |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 10kA @ 250VDC |
| Frame Type | BDA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 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, Rotary Handle |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Visual Trip Indicator |
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Description
The BDA260402 is a 2-pole, 40A molded case circuit breaker from Square D's PowerPacT B-Frame family. Built for commercial and industrial applications, it delivers reliable thermal-magnetic protection for electrical distribution systems. Designed with an I-Line mounting style, this breaker installs into Square D I-Line panelboards and switchboards. It serves as a direct replacement for legacy FA26040 breakers, maintaining an AC phase connection.Specifications
| Brand | Square D |
|---|---|
| Part Number | BDA260402 |
| Series | BDA |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 10kA @ 250VDC |
| Frame Type | BDA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 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, Rotary Handle |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Visual Trip Indicator |
Product FAQs
9 answersWhat panels are compatible with the BDA260402 circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It will not fit standard load centers or NQ and NF panelboards.
Can I use the BDA260402 to replace an older FA-frame breaker?
Yes, the PowerPacT B-frame is the modern replacement for legacy F-frame breakers. The BDA260402 serves as a direct replacement for the obsolete FA26040, maintaining the same I-Line mounting footprint.
How does the I-Line mounting style work on this breaker?
The I-Line design features a plug-on connection on the line side that snaps directly onto the panelboard bus, while the load side uses traditional mechanical lugs for wire termination.
What does the '2' at the end of the BDA260402 part number indicate?
In Square D I-Line nomenclature, the '2' suffix indicates that this two-pole breaker is factory configured for an AC phase connection on the panelboard bus.
What wire sizes are accepted by the load-side lugs?
The factory-installed lugs accept copper or aluminum conductors ranging from 14 AWG to 2/0 AWG.
Is the BDA260402 rated for use in DC circuits?
Yes, in addition to its AC ratings, this breaker is rated for 250VDC applications with an interrupting capacity of 10kA.
What does the 'D' in the BDA prefix indicate?
In the PowerPacT B-frame nomenclature, the 'D' designates the interrupting rating tier. For this breaker, it indicates an 18kA interrupting capacity at 480VAC.
What type of trip mechanism does this breaker use?
It utilizes a fixed thermal-magnetic trip unit, providing Long-Time (thermal) protection against overloads and Instantaneous (magnetic) protection against short circuits.
Does this breaker feature current-limiting technology?
Yes, PowerPacT B-frame breakers utilize dual-break rotating contacts that reduce peak current during a short-circuit fault, limiting system stress and enhancing equipment protection.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 9 reviews.
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Rating
9 reviews
- KFKevin F.Verified BuyerReviewingSquare D BDA36100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/2/26Good price, fast delivery
My local supplier was backordered one this item for a few months, Superbreakers beat the price and delivered it quickly.
- AGAlan G.Verified BuyerReviewingSquare D BDA36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/10/26Excellent Value
Excellent Value and fast shipping. SuperBreakers delivered!!
- MMMike M.Verified BuyerReviewingSquare D BDA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/25/26Review
Super Breakers had the breakers I needed in stock at a fair price and shipped & delivered in an expedited fashion. They are my go-to guys for hard to find breakers.
Mike @ Frey Electric
- SMSergio M.Verified BuyerReviewingSquare D BDA36040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/19/26Installed & working
Ordered this from SuperBreakers when local vendors were quoting me 25%+.
So I got a refurbished version of this breaker.
It is installed and working.
Also, service was great.
Thank you SuperBreakers!
- GOGeorge O.ReviewingSquare D BDA36080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars8/18/22Just received it. Packaging was
Just received it. Packaging was good. Product seems to be exactly as described. Installing soon.