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Eaton / Cutler-Hammer BR115ST Miniature Circuit Breaker
- 15A
- 1 Pole
- Plug-On
Eaton / Cutler-Hammer
BR115ST
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BR115ST
Quantity
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Eaton / Cutler-Hammer BR115ST - 15A 1 Pole Miniature Circuit Breaker
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Description
Featuring factory-installed remote shutdown capabilities, this 15-amp device provides standard thermal-magnetic protection alongside a specialized shunt trip mechanism. It handles applications requiring external trip control. The assembly installs into standard Eaton Type BR load centers. Due to the attached accessory module, it requires two adjacent one-inch pole spaces. Rated for 10kAIC, it includes HACR certification for safe operation with heating and air conditioning motor loads.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BR115ST |
| Series | BR |
| Amperage | 15A |
| Poles | 1 |
| 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 | 14-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 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 | Federal Specification W-C375, UL 489 |
| Approval | UL |
| Temp Rating | 60C to 75C |
| Construction Features | HACR Rated, SWD Rated |
Product FAQs
5 answersWhat does the ST suffix indicate on the BR115ST breaker?
The ST suffix designates a factory-installed 120VAC shunt trip mechanism. This allows the breaker to be tripped remotely via an external control signal.
How many panel spaces are required to install the BR115ST?
Although it is a 1-pole breaker, the BR115ST requires two adjacent 1-inch pole spaces. One space is for the breaker, and the additional space is needed for the attached shunt trip module.
Which load centers are compatible with the BR115ST?
This plug-on breaker is designed for Eaton Type BR load centers. It is also backward compatible with legacy Bryant and Westinghouse panels that accept Type BR breakers.
Is the BR115ST suitable for HVAC motor loads?
Yes, this breaker carries an HACR rating, meaning it is certified for use with heating, air conditioning, and refrigeration equipment.
How does the shunt trip function operate on this breaker?
The shunt trip module connects to an external 120VAC control circuit. When voltage is applied from a remote source, such as an emergency stop button or fire alarm relay, the mechanism forces the breaker to trip and open the circuit.
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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.