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Square D BJA36045 Molded Case Circuit Breaker
- 45A
- 3 Pole
- I-Line
Square D
BJA36045
Molded Case Circuit Breaker
Brand
Square D
SKU
BJA36045
Quantity
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Square D BJA36045 - 45A 3 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty commercial applications, this 45A molded case breaker utilizes fixed thermal and magnetic trip elements for dependable LI protection. It integrates seamlessly into Square D I-Line panelboards, offering a streamlined upgrade path for discontinued FC36045 models. The BJA36045 boasts a high interrupting capacity of 100kA at 240V and includes factory-installed load side lugs, simplifying the wiring process for electrical contractors.Specifications
| Brand | Square D |
|---|---|
| Part Number | BJA36045 |
| Series | BJA |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| 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 | 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, Visual Trip Indicator |
Product FAQs
7 answersWhat panelboards are compatible with the BJA36045?
This breaker is designed for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection on the line side that mounts directly to the panel bus.
Can the BJA36045 replace older Square D circuit breakers?
Yes, the PowerPacT B-Frame series is the direct replacement for legacy Square D FA, FH, and FC frame breakers. It maintains the same I-Line mounting space dimensions to allow for easy retrofitting in existing panelboards.
What are the torque specifications for the load side lugs?
The factory-installed lugs accept 14 to 2/0 AWG aluminum or copper wire. The required tightening torque is 31.9 to 38.9 lb-in for 14 to 10 AWG wire, and 44.3 to 54.9 lb-in for 8 to 2/0 AWG wire.
What does the "J" in the BJA36045 catalog number indicate?
In the PowerPacT B-Frame nomenclature, the "J" designates the interrupting rating. This specific breaker provides a 100kA interrupting capacity at 240VAC and 65kA at 480VAC.
Are the trip settings adjustable on the BJA36045?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The overcurrent and short-circuit trip settings cannot be adjusted in the field.
Does the BJA36045 provide ground fault protection?
No, this breaker is equipped with a standard thermal-magnetic trip unit that provides Long-Time and Instantaneous (LI) protection. It does not include equipment ground fault or personnel ground fault (GFCI) protection.
Can the I-Line connectors on this breaker be removed or replaced?
No, the I-Line plug-on connectors and the mounting bracket are integral parts of the circuit breaker assembly and cannot be removed or replaced in the field.
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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.