Built for residential and commercial applications, this Eaton quadplex breaker delivers 20/30A of power distribution in a compact footprint. It allows installers to add multiple circuits without requiring a larger enclosure. The device installs into Type BR load centers using a standard plug-on connection and includes a rejection tab for secure seating. Rated for 10kAIC at 120/240VAC, it utilizes thermal-magnetic trip technology to ensure consistent overload and short-circuit protection.
Specifications
Brand
Eaton / Cutler-Hammer
Series
BQ
Part Number
BQ2302120
Amperage
20/30A
Voltage
120/240VAC
Poles
4
Phase
1
AIC Rating
10kA @ 120/240VAC
Special Classification
Quadplex
Mounting Style
Plug-On
Terminal Type
Box Lugs
For Use With
Type BR Load Centers
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed
Wire Gauge
14-4 AWG
Max Wire
4 AWG
Min Wire
14 AWG
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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4.9
Rated 4.9 out of 5 stars
Based on 67 reviews
5
Rated out of 5 stars
63
Total 5 star reviews: 63
4
Rated out of 5 stars
3
Total 4 star reviews: 3
3
Rated out of 5 stars
0
Total 3 star reviews: 0
2
Rated out of 5 stars
0
Total 2 star reviews: 0
1
Rated out of 5 stars
1
Total 1 star reviews: 1
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.
Siemens BQ3B040H - 40A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/2/26
Electrician
I appreciate the fast service
JF
James F.
Verified Buyer
Reviewing
Siemens BQ2B030 - 30A 2 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/28/26
Siemans
Excellent service
DQ
David Q.
Verified Buyer
Reviewing
Siemens BQ1B020 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/27/26
Great Customer Service
Breakers ship fast and always at a great price
MZ
Michael Z.
Verified Buyer
Reviewing
Siemens BQ3B020 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/20/26
Breaker
Works. Great and good follow up!
JS
John S.
Verified Buyer
Reviewing
Siemens BQ3B030 - 30A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/13/26
easy to find a hard to find breaker
I was struggling finding the correct breaker, no one in our community had one, I went on line and found it quickly here. it was shipped rite away and I was able to get out business up and going agiain!! THANK YOU