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Siemens BQ3B07000S01 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
Siemens
BQ3B07000S01
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ3B07000S01
Quantity
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Siemens BQ3B07000S01 - 70A 3 Pole Molded Case Circuit Breaker
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Description
Integrating remote shutdown capabilities, the Siemens BQ3B07000S01 features a factory-installed 120VAC shunt trip mechanism. This 70-amp thermal-magnetic breaker provides standard protection for commercial systems. It installs into Siemens panelboards using a secure bolt-on mounting style, making it ideal for emergency stop applications. Rated for 10kAIC at 240VAC, this HACR-rated device meets stringent UL 489 standards for reliable facility safety and equipment defense.Specifications
| Brand | Siemens |
|---|---|
| Series | BQ |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens 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 | Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs, Shunt Trip 120VAC |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhat does the 00S01 suffix indicate on the BQ3B07000S01 breaker?
The 00S01 suffix designates a factory-installed 120V AC shunt trip mechanism. This allows the breaker to be tripped remotely, which is commonly used for emergency stop circuits or automated shutdown systems.
Which panelboards accept the BQ3B07000S01 circuit breaker?
This bolt-on BQ frame breaker is designed for installation in Siemens P1, P2, and P3 panelboards. It is also backward compatible with legacy ITE panelboards that accept BQ series breakers.
What are the wire size limits for the BQ3B07000S01 terminals?
The standard lugs accommodate 8 to 1 AWG copper conductors or 6 to 1/0 AWG aluminum conductors. Ensure the wire gauge matches the 70A circuit requirements and is torqued to the manufacturer specifications.
How does the thermal-magnetic trip unit operate on this breaker?
The BQ3B07000S01 utilizes a fixed thermal element for long-time overload protection and a fixed magnetic element for instantaneous short-circuit protection. Both functions operate together to protect the circuit conductors from thermal damage and fault currents.
Is the BQ3B07000S01 suitable for systems with high fault currents?
This specific breaker is rated for a maximum of 10kAIC at 240V AC. If your system's available fault current exceeds 10,000 amps, you will need to source a higher-rated alternative, such as the BQH (22kAIC) or HBQ (65kAIC) series.
How is the BQ3B07000S01 mounted in the panel?
It features a bolt-on connection type. The breaker must be bolted directly to the panelboard bus, providing a secure and reliable mechanical and electrical connection suitable for commercial applications.
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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.