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Square D BJA36090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- I-Line
Square D
BJA36090
Molded Case Circuit Breaker
Brand
Square D
SKU
BJA36090
Quantity
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Square D BJA36090 - 90A 3 Pole Molded Case Circuit Breaker
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Description
The BJA36090 is a 3-pole, 90-amp molded case circuit breaker from Square D's PowerPacT B-Frame lineup. Engineered for commercial and industrial power distribution, it provides reliable long-time and instantaneous (LI) thermal-magnetic protection. This unit installs into Square D I-Line panelboards and switchboards, serving as a seamless replacement for legacy FC36090 breakers. Rated for 65 kAIC at 480V and 100 kAIC at 240V, it features a factory-configured ABC phase connection and Visi-Trip.Specifications
| Brand | Square D |
|---|---|
| Part Number | BJA36090 |
| Series | BJA |
| Amperage | 90A |
| 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 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, Terminal Shields, Motor Operator, Lug Kits |
|---|---|
| Accessories | Phase Connection ABC (Factory Configured) |
| 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, 80% Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, RoHS Compliant, Mercury Free, PVC Free |
Product FAQs
5 answersWhich panelboards are compatible with the BJA36090?
It is designed exclusively for Square D I-Line panelboards and switchboards. It utilizes the standard I-Line plug-in mounting system for the line side connection directly to the busbar.
Does the BJA36090 replace older Square D circuit breakers?
Yes. The PowerPacT B-Frame series serves as the direct modern replacement for legacy F-Frame I-Line circuit breakers, such as the obsolete FA and FH series. It mounts into the exact same panel space to simplify facility retrofits and upgrades.
How does the BJA36090 connect to the electrical system?
The line side features an I-Line plug-in mounting jaw that attaches directly to the panelboard busbar without requiring additional mounting hardware. The load side utilizes factory-installed mechanical lugs that accept 14 AWG to 2/0 AWG aluminum or copper conductors.
What does the J indicate in the BJA36090 catalog number?
In the Square D PowerPacT nomenclature, the J designates the specific interrupting capacity tier. For this B-Frame breaker, it indicates a high interrupting rating of 65 kA at 480 VAC and 100 kA at 240 VAC.
Are the trip settings on the BJA36090 adjustable?
No. It is equipped with a fixed thermal-magnetic trip unit. Both the long-time (overload) and instantaneous (short-circuit) protection thresholds are factory-set and cannot be adjusted in the field.
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