Siemens BQ1C020 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Quantity
Siemens BQ1C020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built to maintain established electrical systems, this 20A single-pole device offers robust thermal-magnetic trip functions. It serves as a critical maintenance part for facilities with vintage hardware. The breaker integrates flawlessly into existing Challenger, Westinghouse, and Eaton BAB panelboards. This compatibility eliminates retrofits, while the BAB1020 remains a direct cross-reference. Carrying a 10kAIC capacity at 120VAC, it is SWD and HACR rated for lighting and HVAC equipment.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQ1C020-R |
| Series | BQ |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Challenger Panelboards, Eaton BAB Panelboards, Westinghouse Panelboards |
| Wire Gauge | 14-8 AWG |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Standards | HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated |
Product FAQs
5 answersWhich panelboards accept the BQ1C020 circuit breaker?
This breaker is compatible with legacy Challenger and Westinghouse panelboards, as well as modern Eaton BAB panelboards.
What are the direct cross-reference part numbers for the BQ1C020?
The Eaton BAB1020 is a direct modern cross-reference for this breaker. It may also be identified by the alternate part number BQ120.
Is the BQ1C020 suitable for switching fluorescent lighting and HVAC equipment?
Yes, this breaker carries both SWD (Switching Duty) and HACR (Heating, Air Conditioning, and Refrigeration) ratings, making it approved for these specific applications.
What wire sizes are accepted by the terminals on the BQ1C020?
The terminal lugs accommodate wire sizes from 14 AWG to 8 AWG. Always verify the correct torque specifications based on the wire material and size used during installation.
Does the BQ1C020 include arc fault or ground fault circuit interruption?
No, this model provides standard thermal-magnetic protection against overloads and short circuits. It does not feature AFCI or GFCI capabilities.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 74 reviews.
- DVDavid V. O.Verified BuyerReviewingSiemens BQ3B030H - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/3/26Electrician
Came
fast
- 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.