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Siemens BQD170 Molded Case Circuit Breaker
- 70A
- 1 Pole
- Bolt-On
Siemens
BQD170
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQD170
Quantity
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Siemens BQD170 - 70A 1 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial applications, the Siemens BQD170 is a 1-pole, 70A molded case circuit breaker. It features a compact design to maximize panel space. This bolt-on unit installs seamlessly into Siemens P1 through P5 panelboards. It includes load side lugs and accepts up to 1 AWG copper wire. Delivering a 14kAIC rating at 277VAC and 65kAIC at 120VAC, it provides robust long-time and instantaneous (LI) trip functions. It is also HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQD170 |
| Series | BQD |
| Amperage | 70A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 14kA @ 277VAC, 14kA @ 125VDC |
| Frame Type | BQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
8 answersWhich panelboards are compatible with the Siemens BQD170?
The BQD170 is a bolt-on breaker designed specifically for Siemens P1, P2, P3, P4, and P5 series commercial panelboards.
Can I install the BQD170 in a standard Siemens residential load center?
No. The BQD series features a bolt-on connection designed for commercial panelboards. Standard Siemens residential load centers require plug-on breakers like the QP series.
Is the Siemens BQD170 HACR rated?
Yes, this 70A breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
Does the BQD170 carry an HID or SWD rating?
No. High Intensity Discharge (HID) ratings on the BQD series are limited to 15A through 50A models, and Switching Duty (SWD) ratings are only available on 15A and 20A models.
Can the BQD170 circuit breaker be reverse fed?
Yes, Siemens BQD molded case circuit breakers are suitable for reverse feed applications.
Does the BQD170 come with lugs, and what wire sizes do they accept?
Yes, the breaker includes a factory-installed load-side lug that accepts 8 to 1 AWG copper or 6 to 1/0 AWG aluminum conductors. The line side bolts directly to the panelboard bus.
What is the difference between Siemens BQD and CQD circuit breakers?
While both share the same internal mechanisms and ratings, the BQD series is designed to bolt onto Siemens panelboard busbars. The CQD series is designed to be independently mounted on a DIN rail or bolted directly to a surface.
Does the BQD170 provide GFCI or AFCI protection?
No, the BQD170 is a standard thermal magnetic breaker providing long-time and instantaneous (LI) trip functions for overcurrent and short-circuit protection. It does not include ground fault or arc fault protection.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 61 reviews.
Reviews Summary
Generated by AI from 47 most recent customer reviews
Last updated 8/15/25
Customers say this electrical supply service delivers breakers with exceptional speed and reliability. Many reviews mention the straightforward ordering process through an easy-to-navigate website. Frequent comments address competitive pricing and accurate product delivery. The selection of breakers receives consistent praise, with users noting the products match specifications precisely. Reviews highlight the availability of inventory and prompt shipping, often exceeding delivery expectations.
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Rating
61 reviews
- PCPACIFIC C. B.Verified BuyerReviewingSiemens BQD380 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/11/26Used breaker in like New state
Order a reconditioned breaker to fulfill an order, it was in excellent condition . Price was just right.
Very satisfied with my purchase and the end user was happy as well.
- BCBubba C.Verified BuyerReviewingSiemens BQD390 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/24/26BQD breakers
Always love working with Superbreakers! Excellent pricing and availability on pretty much any sort of breaker you need. The packaging is always top notch and they ship your order out as soon as you purchase. Love working with the Superbreakers team!
- LPLUCIAN P.Verified BuyerReviewingSiemens BQD2100 - 100A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/21/26Super breakers
Very good prices , well stock inventory.
Looking forward for more business opportunities.
I like the knowledge that the company employs
professionals and people who are willing to help and support.
- RGRon G.Verified BuyerReviewingSiemens BQD320 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/2/26Breakers
Order was shipped and on time. The ordering process was easy and the service was great.
- GNGreg N.Verified BuyerReviewingSiemens BQD340 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/26/26Excellent Customer Service
Easy ordering & Drew Wilson helped me with this order. I will definitely be using you again in the near future especially with his excellent service he provided.