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Siemens BQ2B03000S01 Molded Case Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
Siemens
BQ2B03000S01
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ2B03000S01
Quantity
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Siemens BQ2B03000S01 - 30A 2 Pole Molded Case Circuit Breaker
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Description
Integrating remote disconnect capabilities, this 30-amp molded case circuit breaker features a factory-installed 120VAC shunt trip mechanism. It delivers reliable thermal-magnetic protection for commercial power distribution networks. The bolt-on design fastens securely into Siemens P1, P2, and P3 panelboards to ensure a stable connection. It serves as a highly capable solution for facilities requiring emergency circuit interruption.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQ2B03000S01 |
| Series | BQ |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG (Cu), 12 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 | 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 panelboards accept the Siemens BQ2B03000S01 circuit breaker?
This BQ frame breaker is designed for bolt-on installation in Siemens P1, P2, and P3 commercial panelboards. It is not compatible with standard residential load centers.
What does the 00S01 suffix indicate on this catalog number?
The 00S01 suffix signifies that the breaker includes a factory-installed 120VAC shunt trip. This internal mechanism allows the breaker to be tripped remotely for emergency disconnect or control applications.
Can the shunt trip on the BQ2B03000S01 be field-installed or replaced?
No, the 120VAC shunt trip is a factory-installed internal accessory. It cannot be removed, modified, or added in the field to a standard BQ breaker.
Is this breaker interchangeable with Siemens Type QP plug-on breakers?
No, the BQ2B03000S01 features a bolt-on connection for commercial panelboards. It cannot be used in residential load centers that require Type QP plug-on breakers.
How does the BQ2B03000S01 differ from BQH or HBQ series breakers?
The standard BQ series provides a 10kAIC interrupting rating. The BQH series offers 22kAIC, and the HBQ series provides 65kAIC. Always verify the available fault current of your system before installation to ensure the correct breaker is selected.
Does this breaker come with load side lugs?
Yes, the BQ2B03000S01 includes factory-installed load side lugs. The line side connects directly to the panelboard bus via the bolt-on mounting bracket.
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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.