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Eaton / Cutler-Hammer BQ240250 40/50A Quadplex Miniature Circuit Breaker
- 40/50A
- 4 Pole
- Plug-On
Eaton / Cutler-Hammer
BQ240250
40/50A Quadplex Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BQ240250
Quantity
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Eaton / Cutler-Hammer BQ240250 - 40/50A Quadplex Miniature Circuit Breaker
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Description
Delivering space-saving power distribution, this Eaton quadplex miniature circuit breaker provides both 40A and 50A protection in a single unit. It is engineered for residential and commercial applications requiring multiple 240V circuits. The plug-on design installs into Eaton BR, Bryant, Challenger, and Westinghouse load centers. It occupies only two panel spaces while delivering four poles of capacity. Rated for 10kAIC at 120/240VAC, it features independent trip and HACR certification.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BQ240250 |
| Series | BQ |
| Amperage | 40/50A |
| 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, Bryant Load Centers, Westinghouse 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 |
| Construction Features | HACR Rated, Independent Trip, Rejection Tab |
Product FAQs
7 answersWhich load centers are compatible with the BQ240250 quadplex breaker?
This plug-on breaker is designed for use in Eaton BR, Bryant, Westinghouse, and Challenger load centers. It requires a panel that supports CTL (Circuit Total Limiting) breakers with rejection tabs.
How many panel spaces does the BQ240250 require?
This quadplex breaker requires two standard 1-inch panel spaces to provide four poles of protection, allowing two separate 240V circuits to fit in a compact footprint.
How are the 40A and 50A circuits configured on the BQ240250?
The breaker features a 40A two-pole circuit on the outside poles and a 50A two-pole circuit on the center poles. Both the 40A and 50A circuits operate with an independent trip mechanism.
What does independent trip mean for this quadplex breaker?
Independent trip means that an overload or short circuit on the 40A outer circuit will not cause the 50A center circuit to trip, and vice versa. Each two-pole circuit provides thermal-magnetic protection independently.
Does the BQ240250 feature a rejection tab?
Yes, this is a CTL (Circuit Total Limiting) breaker equipped with a rejection tab. It will only seat properly in panel busbar slots specifically notched to accept tandem or quadplex breakers.
Can the BQ240250 replace older Westinghouse or Bryant quadplex breakers?
Yes, Eaton manufactures the BQ series as the direct, UL 489 listed replacement for legacy Bryant, Westinghouse, and Challenger quadplex breakers of the exact same configuration.
Is the BQ240250 rated for HVAC equipment?
Yes, all Eaton BQ quadplex breakers carry a listing for HACR (Heating, Air Conditioning, and Refrigeration) applications, making this suitable for heat pumps, compressors, and AC units.
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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.