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Siemens BQ3B08000S01 Molded Case Circuit Breaker
- 80A
- 3 Pole
- Bolt-On
Siemens
BQ3B08000S01
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ3B08000S01
Quantity
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Siemens BQ3B08000S01 - 80A 3 Pole Molded Case Circuit Breaker
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Description
Rated for 10kAIC at 240VAC, this Siemens BQ3B08000S01 molded case circuit breaker combines standard thermal-magnetic protection with advanced control features. The integrated 120VAC shunt trip mechanism enables remote tripping, making it ideal for emergency stops or automated safety systems in commercial facilities. This 3-pole, 80-amp breaker utilizes a secure bolt-on mounting design for compatibility with Siemens P1, P2, and P3 panelboards. It is fully HACR rated for motor loads.Specifications
| Brand | Siemens |
|---|---|
| Series | BQ |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-1 AWG (Cu), 6-1/0 AWG (Al) |
| Max Wire | 1 AWG (Cu), 1/0 AWG (Al) |
| Min Wire | 8 AWG (Cu), 6 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip 120VAC, Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhich Siemens panelboards accept the BQ3B08000S01 circuit breaker?
This BQ frame breaker is designed for installation in Siemens P1, P2, and P3 series panelboards.
What does the 00S01 suffix indicate on the BQ3B08000S01 catalog number?
The 00S01 suffix designates that this circuit breaker is factory-equipped with a 120V AC shunt trip accessory for remote tripping capabilities.
What is the function of the 120V shunt trip on this breaker?
The integrated 120V AC shunt trip allows the breaker to be opened remotely when a voltage signal is applied to the accessory leads. This is frequently required for emergency stop circuits, elevator recalls, or automated equipment shutdowns.
How does the thermal-magnetic trip unit operate on the BQ3B08000S01?
The fixed LI (Long-Time, Instantaneous) trip unit uses a bimetallic element to provide delayed tripping for sustained overloads, combined with an electromagnet that trips the breaker instantly during high-fault short circuits.
Can the Siemens BQ3B08000S01 replace an older ITE version of the same part number?
Yes. Siemens acquired the ITE brand, and the current Siemens BQ3B08000S01 is the direct replacement for the legacy ITE BQ3B08000S01.
Can the BQ3B08000S01 be installed in a 480V panelboard?
No. This breaker has a maximum voltage rating of 240V AC with a 10kAIC interrupting rating. It is not rated for use on 277V or 480V systems.
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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.