Schneider Electric / Square DBJA261001
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Square D BJA261254 Molded Case Circuit Breaker
- 125A
- 2 Pole
- I-Line
Square D
BJA261254
Molded Case Circuit Breaker
Brand
Square D
SKU
BJA261254
Quantity
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Square D BJA261254 - 125A 2 Pole Molded Case Circuit Breaker
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Description
Providing reliable thermal-magnetic fault protection, the BJA261254 is a 2-pole, 125A molded case circuit breaker from the PowerPacT B-Frame series. It is engineered for commercial and industrial applications with long-time and instantaneous trip functions. This unit installs into Square D I-Line panelboards and switchboards, utilizing a phase BC connection. It serves as a drop-in replacement for legacy KC26125BC breakers.Specifications
| Brand | Square D |
|---|---|
| Part Number | BJA261254 |
| Series | BJA |
| Amperage | 125A |
| 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 |
| Frame Type | BJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 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, Motor Operator |
|---|---|
| Accessories | Phase Connection BC |
| 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, Visual Trip Indicator |
Product FAQs
6 answersWhat older Square D circuit breakers does the BJA261254 replace?
The PowerPacT B-Frame BJA261254 is the modern drop-in replacement for legacy 2-pole, 125A Square D FA and FH frame I-Line circuit breakers. It fits the same I-Line panelboards and switchboards while offering upgraded features.
How do you break down the BJA261254 catalog number?
"B" is the PowerPacT B-Frame. "J" is the interrupting rating tier. "A" indicates I-Line mounting. "2" stands for 2 poles. "6" denotes the 600Y/347VAC maximum voltage rating. "125" is the 125A amperage. Finally, "4" specifies a Phase BC connection on the I-Line bus.
What phase connection does the BJA261254 use?
The "4" at the end of the BJA261254 catalog number indicates it is factory-configured for a Phase BC connection on the I-Line bus.
Can I install the BJA261254 in a standard QO or Homeline load center?
No, the BJA261254 is an I-Line molded case circuit breaker. It is strictly compatible with commercial and industrial Square D I-Line panelboards and switchboards. It will not fit in residential QO or Homeline load centers.
Is the BJA261254 suitable for HVAC equipment?
Yes, this PowerPacT B-Frame breaker is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment.
How does the BJA261254 connect to the panel bus?
It features an I-Line style plug-in connection. The breaker jaws connect directly to the I-Line bus of compatible Square D panelboards, allowing for fast, modular installation without requiring individual wire connections to the busbar.
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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.