Eaton / Cutler-HammerBQ2402120
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Eaton / Cutler-Hammer BQ220240 20/40A Quadplex Miniature Circuit Breaker
- 20/40A
- 4 Pole
- Plug-On
Eaton / Cutler-Hammer
BQ220240
20/40A Quadplex Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BQ220240
Quantity
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Eaton / Cutler-Hammer BQ220240 - 20/40A Quadplex Miniature Circuit Breaker
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Description
Engineered for space-constrained installations, the Eaton BQ220240 quadplex breaker provides two independent 240V circuits. It features a 20A outer two-pole and a 40A center two-pole configuration. This plug-on breaker mounts into standard Type BR load centers, requiring only two 1-inch panel spaces. It is fully compatible with Cutler-Hammer and Eaton BR series enclosures. Rated at 10kAIC, it utilizes thermal-magnetic trip technology for reliable protection and includes a rejection tab.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BQ220240-R |
| Series | BQ |
| Amperage | 20/40A |
| Poles | 4 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Type BR 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
6 answersWhich load centers accept the BQ220240 quadplex breaker?
It is designed for Eaton Type BR load centers equipped with notched bus stabs. It is also a UL listed replacement for legacy Westinghouse, Challenger, and Bryant panels that accept Type BR breakers.
How much panel space is required to install this quadplex breaker?
It requires two standard 1-inch spaces. As a CTL (Circuit Total Limitation) breaker, it must be installed in panel slots specifically designed to accept tandem or quad breakers.
What is the purpose of the rejection tab on the BQ220240?
The rejection tab is a CTL feature that prevents the breaker from being installed in panel positions not rated for tandem or quadplex breakers. It ensures compliance with panelboard circuit limits by only fitting onto notched bus stabs.
What does the independent trip feature mean for the BQ series?
In Type BQ breakers, the poles feature an independent trip mechanism, meaning a fault on one pole does not internally force the other poles to trip. This differs from Type BQC breakers, which utilize a common trip mechanism for synchronous tripping.
Can this breaker replace older Westinghouse or Bryant quadplex models?
Yes, Eaton manufactures the BQ series as genuine, UL listed replacements for equivalent Westinghouse, Challenger, and Bryant quad breakers with matching amperage and trip configurations.
Is this breaker suitable for HVAC applications?
Yes, the BQ220240 carries an HACR listing, making it approved for use with heating, air conditioning, and refrigeration equipment.
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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.