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Square D BJA260904 Molded Case Circuit Breaker
- 90A
- 2 Pole
- I-Line
Square D
BJA260904
Molded Case Circuit Breaker
Brand
Square D
SKU
BJA260904
Quantity
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Square D BJA260904 - 90A 2 Pole Molded Case Circuit Breaker
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Description
Built for industrial applications, the Square D BJA260904 is a 2-pole, 90A MCCB in the PowerPact B-frame series. It utilizes thermal-magnetic technology to deliver precise long-time and instantaneous (LI) overcurrent protection. Featuring a Phase BC connection and I-Line mounting, it installs easily into Square D I-Line panelboards. It serves as an exact substitute for discontinued FH26090BC units. Rated 65kAIC at 480VAC, this current-limiting breaker provides exceptional fault clearing.Specifications
| Brand | Square D |
|---|---|
| Part Number | BJA260904 |
| Series | BJA |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 50kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| 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 | Phase Connection BC (Suffix 4) |
| Standards | CSA C22.2 No. 5, EN/IEC 60947-2, GB 14048.2, NEMA AB 1, NMX J-266, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
9 answersWhat panelboards are compatible with the BJA260904?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features a plug-on I-Line connection on the line side and mechanical lugs on the load side.
What does the A in the BJA260904 catalog number represent?
The A indicates that the breaker is configured for I-Line mounting, which is Square D's proprietary plug-on bus system for panelboards and switchboards.
What does the 4 at the end of the BJA260904 catalog number indicate?
The 4 suffix indicates that this 2-pole breaker is configured for a BC phase connection on the I-Line bus.
Can the BJA260904 replace older Square D circuit breakers?
Yes, the PowerPacT B-Frame is the direct replacement for legacy F-Frame breakers. The BJA260904 serves as a direct substitute for the discontinued FH26090BC, maintaining the exact same I-Line mounting footprint.
How is the BJA260904 mounted into the panel?
It utilizes an I-Line plug-on mounting style. The breaker snaps directly onto the panelboard bus assembly, which eliminates the need for line-side wire terminations and speeds up installation.
What wire sizes are accepted by the lugs on this 90A breaker?
The load-side mechanical lugs accept aluminum or copper wire ranging from 14 AWG to 2/0 AWG.
What does the J in the BJA260904 part number signify?
The J denotes the interrupting capacity tier within the PowerPacT B-Frame family. It provides a 100kA rating at 240VAC and a 65kA rating at 480VAC.
Is this breaker rated for DC voltage applications?
Yes, in addition to its AC ratings, the BJA260904 is rated for up to 250VDC with an interrupting capacity of 50kA.
What type of trip unit does the BJA260904 use?
It features a fixed thermal-magnetic trip unit that provides Long-Time overload protection and Instantaneous short-circuit protection, commonly referred to as LI functions.
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Reviews
Review summary
Customers rate this product 4.3 out of 5 based on 3 reviews.
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Rating
3 reviews
- RHRyan H.Verified BuyerReviewingSchneider Electric BJA36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/6/25Breaker
It was as described and worked as it should.
- LOLake O.ReviewingSchneider Electric BJA36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars10/7/21Staff was very helpful.
Staff was very helpful.
- RKRobert K.ReviewingSquare D BJA36040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars1/26/21Breakers
Always fast service. Get my breakers the next day.