Schneider Electric / Square DBJA261001
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Square D BJA261004 Molded Case Circuit Breaker
- 100A
- 2 Pole
- I-Line
Square D
BJA261004
Molded Case Circuit Breaker
Brand
Square D
SKU
BJA261004
Quantity
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Square D BJA261004 - 100A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial distribution, the Square D BJA261004 delivers 2-pole, 100A thermal-magnetic protection within the PowerPacT B-Frame family. It provides reliable overcurrent defense with long-time and instantaneous (LI) trip functions. This unit installs into Square D I-Line panelboards utilizing a phase BC connection. It serves as a drop-in replacement for legacy FH26100BC breakers. Rated for 65kAIC at 480VAC, this current-limiting breaker is HACR rated for HVAC applications.Specifications
| Brand | Square D |
|---|---|
| Series | BJA |
| Amperage | 100A |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, 80% Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Reverse Feed, Phase BC Connection |
Product FAQs
7 answersWhat panelboards are compatible with the BJA261004 circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. The I-Line plug-in connection allows it to mount directly onto the interior busbar.
What wire sizes are accepted by the lugs on this 100A B-Frame breaker?
The factory-installed lugs accommodate aluminum or copper conductors ranging from 14 AWG to 2/0 AWG.
What does the "J" in the BJA261004 part number signify?
In the PowerPacT B-Frame nomenclature, the "J" indicates the interrupting rating tier. This specific model provides a high interrupting capacity of 65 kA at 480/277 VAC and 100 kA at 240 VAC.
How much bus space does this 2-pole B-Frame breaker require in an I-Line panel?
A 2-pole PowerPacT B-Frame circuit breaker requires 2.12 inches (54 mm) of mounting space on the I-Line bus.
Is the BJA261004 suitable for direct current (DC) systems?
Yes, this thermal-magnetic breaker is rated for DC use, offering an interrupting rating of 50 kA at 250 VDC.
How does the trip unit function on the BJA261004?
It utilizes a thermal-magnetic trip unit with fixed thermal and fixed magnetic settings. This provides long-time (L) protection for standard overloads and instantaneous (I) protection to clear severe short circuits.
Can the BJA261004 replace older Square D 100A I-Line breakers?
Yes, the PowerPacT B-Frame series is the direct, modern replacement for legacy Square D FA and FH frame circuit breakers. It maintains the same I-Line mounting space dimensions to easily retrofit into existing panelboards.
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