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Siemens BQ3B100-01 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Siemens
BQ3B100-01
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ3B100-01
Quantity
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Siemens BQ3B100-01 - 100A 3 Pole Molded Case Circuit Breaker
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Description
Designed for advanced monitoring needs, the Siemens BQ3B100-01 is a 100-amp, 3-pole molded case circuit breaker. It includes a factory-installed auxiliary switch that allows facility managers to track breaker status remotely. This unit mounts into standard Siemens panelboards using a reliable bolt-on connection. As a direct replacement for the standard BQ3B100, it upgrades existing setups with signaling capabilities. It delivers 10 kAIC of short-circuit protection at 240VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQ3B100-01 |
| Series | BQ |
| Amperage | 100A |
| 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 | Shunt Trip, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs, Auxiliary Switch |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhat is the difference between the Siemens BQ3B100-01 and the standard BQ3B100?
The BQ3B100-01 includes a factory-installed auxiliary switch that allows facility managers to track breaker status remotely. It serves as a direct replacement for the standard BQ3B100 when signaling capabilities are required.
Does the auxiliary switch require field installation?
No, the auxiliary switch on the BQ3B100-01 is factory-installed and ready for integration into your facility monitoring system right out of the box.
Is the BQ3B100-01 suitable for HVAC equipment?
Yes, this breaker is HACR rated, making it approved for use with heating, air conditioning, and refrigeration equipment.
What safety and testing standards does this breaker meet?
The breaker is UL 489 listed and CSA certified under standard C22.2 No. 5. It is also calibrated for operation in a 40C ambient temperature environment.
Are the terminal lugs dual-rated for different conductor materials?
Yes, the factory-installed lugs are dual-rated to accept both copper and aluminum conductors. They accommodate 8 to 1 AWG copper wire or 6 to 1/0 AWG aluminum wire.
How does this breaker mount into the panelboard?
This unit utilizes a bolt-on connection to secure directly to the busbars of compatible Siemens panelboards, providing a rigid and reliable mechanical connection for commercial applications.
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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.