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Siemens BQ3B09000S01 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Siemens
BQ3B09000S01
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ3B09000S01
Quantity
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Siemens BQ3B09000S01 - 90A 3 Pole Molded Case Circuit Breaker
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Description
Designed for advanced control applications, the Siemens BQ3B09000S01 integrates a 120VAC shunt trip for remote disconnect functionality. This 3-pole, 90A molded case circuit breaker is built for commercial and industrial environments. It features a bolt-on mounting style compatible with Siemens P1, P2, and P3 panelboards. The unit delivers a 10 kAIC interrupting rating at 240VAC and utilizes a fixed thermal-magnetic trip mechanism. It includes load side lugs and carries a HACR rating.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQ3B09000S01 |
| Series | BQ |
| Amperage | 90A |
| 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 Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs, Shunt Trip 120VAC |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Product FAQs
5 answersWhich panelboards accept the Siemens BQ3B09000S01 circuit breaker?
This breaker is engineered for commercial and industrial applications and mounts directly into Siemens P1, P2, and P3 panelboards. It is a bolt-on breaker and is not compatible with standard plug-on residential load centers.
What does the 00S01 suffix indicate on this specific BQ frame breaker?
The 00S01 suffix signifies that the breaker includes a factory-installed 120VAC shunt trip. This allows the breaker to be tripped from a remote location using a separate control signal.
How is the integrated shunt trip wired for remote operation?
The 120VAC shunt trip mechanism requires a separate 120V control power source. When the control circuit energizes the trip coil, it mechanically opens the breaker contacts to disconnect the load.
Can the shunt trip be used to reset the breaker remotely?
No. A shunt trip is strictly a safety and control mechanism used to remotely open the breaker. Once tripped, the breaker must be manually reset at the panelboard before power can be restored.
What are the wire size requirements for the load lugs?
The factory lugs accept 8 to 1 AWG copper (Cu) conductors or 6 to 1/0 AWG aluminum (Al) conductors. Ensure proper torque is applied during installation to prevent thermal issues.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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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.