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Siemens BQ1B015H Molded Case Circuit Breaker
- 15A
- 1 Pole
- Bolt-On
Siemens
BQ1B015H
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ1B015H
Quantity
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Siemens BQ1B015H - 15A 1 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens BQ1B015H - 15A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BQ1B015H |
| Series | BQ |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, SWD, UL |
| Temp Rating | 40C |
Sold out
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Siemens BQ1B015H - 15A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BQ1B015H-R |
| Series | BQ |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, SWD, UL |
| Temp Rating | 40C |
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Description
Built for commercial and industrial power distribution, the Siemens BQ1B015H provides reliable thermal-magnetic overcurrent protection. This 1-pole, 15A breaker features a robust 22kAIC interrupt rating at 120/240VAC, making it suitable for demanding electrical environments. It installs into Siemens panelboards designed for bolt-on breakers, ensuring a secure and stable connection for continuous loads. The unit includes standard long-time and instantaneous (LI) trip functions.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQ1B015H |
| Series | BQ |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens 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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, HACR, SWD, UL |
| Temp Rating | 40C |
Product FAQs
8 answersWhich panelboards accept the Siemens BQ1B015H circuit breaker?
The BQ1B015H is engineered for Siemens P1, P2, and P3 series lighting and distribution panelboards. It also fits legacy I-T-E and Gould bolt-on panels that require BQ frame breakers.
Can the Siemens BQ1B015H replace older I-T-E breakers?
Yes. Siemens acquired I-T-E, and the BQ1B015H is the direct, manufacturer-approved replacement for obsolete I-T-E and Gould 15-amp, 1-pole BQ series bolt-on breakers.
What wire sizes are compatible with the load lugs on the BQ1B015H?
The factory-installed lugs accept 14 to 6 AWG copper (Cu) wire or 12 to 6 AWG aluminum (Al) wire. Ensure conductors are sized appropriately for the 15-amp rating per NEC guidelines.
What does the H suffix mean in the BQ1B015H part number?
The H suffix designates a high-interrupting capacity. While standard BQ breakers are rated at 10kAIC, the BQ1B015H provides a 22kAIC interrupting rating at 120/240VAC for systems with higher available fault currents.
How is the BQ1B015H secured to the panelboard?
It features a bolt-on connection type. The breaker bolts directly to the panelboard bus bar, creating a secure, high-retention contact that resists vibration in commercial and industrial applications.
Can I substitute a plug-on breaker for the BQ1B015H?
No. Panelboards designed for bolt-on BQ frame breakers require bolted connections. Plug-on breakers, such as the Siemens QP series, will not mount to a bolt-on bus bar and are not UL-listed for these specific enclosures.
Is the BQ1B015H interchangeable with breakers from GE or Square D?
No. Siemens BQ frame breakers are strictly UL-listed for Siemens, Murray, and legacy I-T-E panelboards. Installing them in GE, Square D, or Eaton panels violates UL listings and creates safety hazards.
How does the thermal-magnetic trip function operate on this breaker?
The fixed thermal-magnetic mechanism provides dual protection. The thermal element responds to prolonged overloads (long-time trip), while the magnetic element reacts immediately to short circuits (instantaneous trip).
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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.