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Siemens BQD320 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Siemens
BQD320
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQD320
Quantity
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Siemens BQD320 - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens BQD320 - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BQD320 |
| Series | BQD |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Frame Type | BQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip, Reverse Feed |
Quantity
Siemens BQD320 - 20A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BQD320-R |
| Series | BQD |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Frame Type | BQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip, Reverse Feed |
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Description
Utilizing advanced thermal-magnetic technology, this 20A, three-pole molded case circuit breaker safeguards commercial electrical systems against overloads. The device incorporates a quick-make, quick-break mechanism to minimize arcing. Compatibility includes Siemens P1 through P5 panelboards, utilizing a reliable bolt-on mounting style. The included load-side lugs are rated for copper and aluminum wiring. Capable of interrupting 65kA at 240VAC, it provides robust fault clearance.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQD320 |
| Series | BQD |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Frame Type | BQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip, Reverse Feed |
Product FAQs
6 answersWhich Siemens panelboards accept the BQD320 circuit breaker?
The BQD320 is a bolt-on molded case circuit breaker designed specifically for installation in Siemens P1, P2, P3, P4, and P5 panelboards.
What is the difference between the Siemens BQD320 and CQD320?
Both are 20A, 3-pole breakers with identical interrupting ratings, but they feature different mounting methods. The BQD320 is a bolt-on breaker for panelboards, whereas the CQD320 is designed for standard DIN rail or surface mounting inside control panels.
Can the BQD320 be used in reverse feed applications?
Yes, Siemens BQD frame breakers are suitable for reverse feed applications. If you are using the BQD320 as a back-fed main breaker in a Siemens P1 panelboard, you must install an MBKBFA hold-down kit to comply with electrical codes.
Is the BQD320 suitable for 480V corner-grounded delta systems?
No. Siemens BQD circuit breakers are not suitable for 3-phase, 480V AC grounded B-phase delta applications. They are designed for use on standard 240V AC systems or solidly grounded wye systems up to 480Y/277V AC.
Is this breaker rated for switching lighting circuits?
The BQD320 is HID marked, making it approved for switching High-Intensity Discharge lighting loads. However, note that the SWD (Switching Duty) rating only applies to 1-pole 15A and 20A BQD breakers, so this 3-pole model is not SWD rated.
Is the BQD320 HACR rated for HVAC equipment?
Yes, all multi-pole Siemens BQD breakers up to 100A carry an HACR marking. This certifies the BQD320 for safe use with heating, air conditioning, and refrigeration group motor equipment.
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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.