Schneider Electric / Square DBJA261001
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Square D BJA261251 Molded Case Circuit Breaker
- 125A
- 2 Pole
- I-Line
Square D
BJA261251
Molded Case Circuit Breaker
Brand
Square D
SKU
BJA261251
Quantity
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Square D BJA261251 - 125A 2 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial applications, this 125A, 2-pole PowerPacT B-Frame MCCB delivers thermal-magnetic protection with long-time and instantaneous (LI) functions. Designed for Square D I-Line panelboards and switchboards, it utilizes a phase AB connection. This breaker serves as a seamless replacement for the older FA26125AB model. Delivering 65kAIC at 480VAC, it includes Visi-Trip and Push-to-Trip features for enhanced safety, simplified maintenance, and rapid fault detection.Specifications
| Brand | Square D |
|---|---|
| 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 | 14-2/0 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 AB |
| 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, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersWhat type of panelboards is the BJA261251 compatible with?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection on the line side and lug connections on the load side.
Can the BJA261251 replace older Square D circuit breakers?
Yes, the PowerPacT B-frame is designed to replace legacy F-frame breakers. The BJA261251 serves as a direct replacement for the older FA26125AB model, utilizing the same 1.5-inch per pole width to simplify substitution without needing blank fillers.
What is the phase connection for this 2-pole breaker?
The BJA261251 is configured for an AB phase connection, which is standard for this specific catalog number when mounted in I-Line panels.
What wire sizes are accepted by the lugs on this breaker?
The load-side lugs accept wire gauges from 14 AWG up to 2/0 AWG. They are rated for use with both aluminum and copper conductors.
What does the "J" in the BJA261251 part number indicate?
The "J" designates the interrupting rating tier within the PowerPacT B-Frame series. For this model, it indicates a short-circuit current rating of 65kA at 480VAC and 100kA at 240VAC.
Are the trip settings on the BJA261251 adjustable?
No, this thermal-magnetic breaker features fixed thermal and fixed magnetic trip settings for both long-time and instantaneous protection.
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