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Eaton / Cutler-Hammer BQ2502120 20/50A Quadplex Miniature Circuit Breaker
- 20/50A
- 4 Pole
- Plug-On
Eaton / Cutler-Hammer
BQ2502120
20/50A Quadplex Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BQ2502120
Quantity
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Eaton / Cutler-Hammer BQ2502120 - 20/50A Quadplex Miniature Circuit Breaker
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Eaton / Cutler-Hammer BQ2502120 - 20/50A Quadplex Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BQ2502120 |
| Series | BQ |
| Amperage | 20/50A |
| Poles | 4 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Eaton BR Load Centers, Westinghouse Load Centers, Bryant Load Centers, Challenger Load Centers |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quadplex |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Rejection Tab |
| Standards | CSA C22.2 No. 5, Federal Specification W-C375, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 60C to 75C |
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Eaton / Cutler-Hammer BQ2502120 - 20/50A Quadplex Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BQ2502120-R |
| Series | BQ |
| Amperage | 20/50A |
| Poles | 4 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Eaton BR Load Centers, Westinghouse Load Centers, Bryant Load Centers, Challenger Load Centers |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quadplex |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Rejection Tab |
| Standards | CSA C22.2 No. 5, Federal Specification W-C375, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 60C to 75C |
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Description
Built for residential and commercial applications, the Eaton BQ2502120 delivers high-density circuit protection. This quadplex breaker fits into a standard two-pole space, offering two 20A single-pole circuits on the outside and one 50A two-pole circuit in the center. It is fully compatible with Eaton BR, Bryant, Westinghouse, and Challenger panels equipped with notched bus stabs. The plug-on unit features a 10 kAIC rating, independent trip functionality, and a built-in rejection tab.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BQ2502120 |
| Series | BQ |
| Amperage | 20/50A |
| Poles | 4 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Eaton BR Load Centers, Westinghouse Load Centers, Bryant Load Centers, Challenger Load Centers |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quadplex |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Rejection Tab |
| Standards | CSA C22.2 No. 5, Federal Specification W-C375, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 60C to 75C |
Product FAQs
6 answersHow are the 20A and 50A circuits configured on this quadplex breaker?
The BQ2502120 fits into two standard 1-inch panel spaces. It provides two independent 20-amp single-pole circuits on the outer positions and one 50-amp two-pole circuit in the center positions.
Does the BQ2502120 feature an independent or common trip mechanism?
The BQ series features an independent trip function, meaning each pole trips independently of the others. If your 240V application requires a synchronous common trip for safety or code compliance, you will need a BQC series breaker instead.
Is the BQ2502120 a CTL or non-CTL circuit breaker?
The BQ2502120 is a CTL (Circuit Total Limiting) breaker and includes a rejection tab. It can only be installed in panel slots that have notched bus stabs specifically approved for tandem or quadplex breakers.
Can I use the BQ2502120 to replace older Bryant or Westinghouse quad breakers?
Yes, Eaton manufactures the BQ series as the direct, UL-listed replacement for legacy Bryant, Westinghouse, and Challenger quadplex breakers of the same amperage and configuration.
How much panel space is required to install the BQ2502120?
As a quadplex breaker, it delivers four circuits while only occupying two standard 1-inch spaces in the load center. Your panel bus must be designed to accept tandem or quadplex breakers in those specific spaces.
Is the BQ2502120 rated for HVAC equipment?
Yes, all Eaton BQ quadplex circuit breakers carry a listing for HACR (Heating, Air Conditioning, and Refrigeration) applications.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 73 reviews.
Reviews Summary
Generated by AI from 67 most recent customer reviews
Last updated 6/3/26
Customers say these breakers arrive quickly and fit perfectly for their electrical needs. Fast shipping and competitive pricing are frequently mentioned, with many users appreciating the availability of hard-to-find and older-style breakers. The products are well-packaged and arrive in good condition. Most customers report successful installations and reliable performance. A few note missing items from orders or concerns about product condition, though the majority express satisfaction with their purchases and indicate they would order again.
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Rating
73 reviews
- HSHector S.Verified BuyerReviewingSiemens BQ3B100H - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/27/26Perfect replacement
Fit perfectly and good price
- AFAnthony F.Verified BuyerReviewingSiemens BQ2B020 - 20A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/25/26works as expected
works as expected
- MSMike S.Verified BuyerReviewingEaton / Cutler-Hammer BQ250250 - 50/50A Quadplex Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/12/26Electrical company
Breaker worked awesome thank you very much
- PEPhilip E.Verified BuyerReviewingSiemens BQ3B020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/10/26Siemens BQ3B020
The breaker arrived as described and on time. It works as expected. I will order from SuperBreakers again in the future without hesitation.
- PLPaul L.Verified BuyerReviewingSiemens BQ1B020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/23/26Breaker
Quick shipping. Exact fit.