Siemens BQ1B03000S01 Molded Case Circuit Breaker
- 30A
- 1 Pole
- Bolt-On
Siemens
BQ1B03000S01
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ1B03000S01
Quantity
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Siemens BQ1B03000S01 - 30A 1 Pole Molded Case Circuit Breaker
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Description
Built for advanced control, the Siemens BQ1B03000S01 is a 1-pole, 30A molded case circuit breaker. It includes a 120VAC shunt trip, allowing users to remotely open the circuit for safety purposes. This breaker mounts into Siemens P1, P2, and P3 panelboards via a bolt-on connection. The lug terminals accommodate 14-6 AWG copper or 12-6 AWG aluminum wiring. Delivering 10kAIC at 120/240VAC, this HACR-rated unit provides robust thermal-magnetic protection for commercial systems.Specifications
| Brand | Siemens |
|---|---|
| Series | BQ |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards (P1, P2, P3) |
| 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 | Load Side Lugs, Shunt Trip 120VAC |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhich Siemens panelboards accept this BQ frame breaker?
This bolt-on breaker is engineered specifically for installation in Siemens P1, P2, and P3 commercial panelboards.
What does the 00S01 suffix indicate on this Siemens breaker?
The 00S01 suffix signifies that the breaker is factory-equipped with a 120VAC shunt trip accessory. This allows the breaker to be opened remotely via a control signal for emergency shutdown or automated control.
What wire sizes and materials are compatible with the lugs on this breaker?
The load-side terminal lugs accommodate 14 to 6 AWG copper conductors or 12 to 6 AWG aluminum conductors.
What is the alternate cross-reference part number for the BQ1B03000S01?
This specific Siemens breaker configuration can also be identified or cross-referenced using the alternate industrial part number 3HZZ5.
How does the thermal-magnetic trip unit function in this breaker?
The thermal-magnetic mechanism provides dual protection. The fixed thermal component responds to prolonged mild overloads with a long-time delay, while the fixed magnetic component provides instantaneous tripping during severe short circuits.
How is this breaker secured to the panelboard bus?
It utilizes a bolt-on connection type. Unlike plug-in breakers, bolt-on breakers are fastened directly to the panelboard busbars with screws, providing a highly secure mechanical and electrical connection typical in commercial applications.
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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.