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Eaton / Cutler-Hammer BR290ST Miniature Circuit Breaker
- 90A
- 2 Pole
- Plug-On
Eaton / Cutler-Hammer
BR290ST
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BR290ST
Quantity
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Eaton / Cutler-Hammer BR290ST - 90A 2 Pole Miniature Circuit Breaker
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Description
Integrating remote shutdown capabilities, this 90-amp two-pole unit is designed for specialized power management. The factory-installed 120VAC shunt trip mechanism enables external control systems to open the circuit automatically. This three-inch wide component mounts into standard Eaton or Cutler-Hammer Type BR load centers, accepting 8 to 1/0 AWG wiring. Delivering standard 10 kAIC interrupting capacity at 120/240V, it provides reliable thermal-magnetic overcurrent response.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BR290ST |
| Series | BR |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | BR |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Type BR Load Centers |
| Wire Gauge | 8 AWG - 1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Shunt Trip |
| Standards | UL 489, Federal Specification W-C375 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, HACR Rated, Rejection Tab, Quick-Make/Quick-Break |
Product FAQs
8 answersWhat does the ST suffix indicate on the Eaton BR290ST?
The ST suffix indicates the breaker includes a factory-installed 120VAC shunt trip. This mechanism allows the breaker to be tripped remotely by an external control voltage, making it suitable for emergency shutdown and safety interlock applications.
How many panel spaces are required to install the BR290ST?
This breaker requires three 1-inch spaces in the load center. The two-pole breaker utilizes two spaces, and the integrated shunt trip mechanism requires a third space.
Can I add a shunt trip to a standard BR290 breaker in the field?
No, Eaton Type BR shunt trips cannot be field-installed. You must use a breaker with a factory-installed shunt trip, such as the BR290ST.
Which load centers are compatible with the BR290ST?
This plug-on breaker is compatible with Eaton, Cutler-Hammer, Westinghouse, and Bryant Type BR load centers.
Can the BR290ST replace older Bryant or Westinghouse breakers?
Yes, Eaton manufactures the BR series as a direct replacement for legacy Cutler-Hammer, Westinghouse, and Bryant Type BR breakers with matching specifications.
What is the control voltage for the shunt trip on the BR290ST?
The factory-installed shunt trip on this breaker operates on a 120VAC control voltage.
Is the BR290ST rated for HACR applications?
Yes, all Eaton Type BR multi-pole circuit breakers are HACR rated for use with heating, air conditioning, and refrigeration equipment.
Does the BR290ST provide ground fault or arc fault protection?
No, this is a standard thermal-magnetic breaker with a shunt trip. It does not include GFCI or AFCI protection.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 70 reviews.
Reviews Summary
Generated by AI from 96 most recent customer reviews
Last updated 8/15/25
Customers say these circuit breakers arrive quickly and fit their needs perfectly. Many reviews mention competitive pricing and reliable availability, particularly for hard-to-find models. The products consistently meet expectations for installation and functionality. Reviews frequently note the precise fit and immediate operation of these breakers. Some users appreciate the option of both new and refurbished units.
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Rating
70 reviews
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In this day and age it can be a challenge at times finding a reputable business that fills your order correctly and at the right price and without delay. I am very pleased with your service. Thank you.