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Siemens BQ3B080-01 Molded Case Circuit Breaker
- 80A
- 3 Pole
- Bolt-On
Siemens
BQ3B080-01
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ3B080-01
Quantity
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Siemens BQ3B080-01 - 80A 3 Pole Molded Case Circuit Breaker
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Description
The BQ3B080-01 is a 3-pole molded case circuit breaker from Siemens, delivering 80 amps of reliable overcurrent protection for commercial and industrial electrical systems. It features a standard 10kAIC interrupting rating at 240VAC and utilizes proven thermal-magnetic trip technology. Designed with a secure bolt-on mounting style, this breaker installs easily into Siemens P1 panelboards as well as legacy ITE enclosures. It serves as a direct replacement for standard BQ3B080 units.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQ3B080-01 |
| Series | BQ |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1 Panelboards, ITE Panelboards |
| Wire Gauge | 4-1/0 AWG (Cu), 2-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG (Cu), 2 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens BQ3B080-01?
This bolt-on breaker is specifically designed for installation in Siemens P1 panelboards and legacy ITE panelboards. It is not compatible with standard plug-on residential load centers.
How does the BQ3B080-01 connect to the panelboard bus?
It utilizes a bolt-on connection, which provides a secure, high-contact mechanical fastening to the bus bar. This is standard for commercial panelboards like the Siemens P1, offering greater stability than residential plug-on designs.
What wire sizes and materials are accepted by the terminals on this breaker?
The factory-installed lugs accept 4 AWG to 1/0 AWG copper conductors, or 2 AWG to 1/0 AWG aluminum conductors. Ensure proper torque specifications are followed during installation.
What is the difference between the BQ3B080 and the BQ3B080-01?
The -01 suffix designates that the breaker is supplied from the factory with load side lugs included. The BQ3B080-01 serves as a direct, drop-in replacement for the standard BQ3B080 catalog number.
How does the thermal-magnetic trip unit function on this breaker?
The fixed thermal-magnetic trip unit provides Long-Time (L) protection for sustained overloads and Instantaneous (I) protection for immediate short-circuit clearing. The trip settings are factory-sealed and cannot be adjusted in the field.
Is it safe to install this Siemens BQ breaker in a panelboard from a different manufacturer?
No. To maintain UL safety listings and prevent hazardous high-resistance connections, this breaker must only be installed in approved Siemens or legacy ITE enclosures. Cross-brand mixing is a code violation unless explicitly classified by UL.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 74 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
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.