Engineered for commercial and industrial distribution, this 20A molded case circuit breaker includes a factory-installed 120VAC shunt trip for remote tripping applications. It provides reliable thermal-magnetic protection for branch circuits. This bolt-on MCCB installs into Siemens P1, P2, P3, P4, and P5 panelboards. It accepts 14-6 AWG copper or 12-6 AWG aluminum conductors via standard lug terminals. Rated at 65 kAIC at 120VAC, the BQD frame breaker is HACR, HID, and SWD rated.
What does the S01 suffix indicate on the BQD12000S01 catalog number?
The S01 suffix designates that this breaker includes a factory-installed 120VAC shunt trip. This accessory allows the breaker to be tripped remotely when a 120V control voltage is applied to the shunt trip coil.
Can the BQD12000S01 be installed in standard residential load centers?
No, this is a bolt-on molded case circuit breaker designed specifically for commercial and industrial distribution. It must be installed in compatible Siemens P1, P2, P3, P4, or P5 panelboards and will not fit in plug-on residential load centers.
Is the BQD12000S01 rated for switching lighting circuits?
Yes, this 20A 1-pole breaker carries both SWD (Switching Duty) and HID (High-Intensity Discharge) ratings, making it approved for switching fluorescent and HID lighting loads on a regular basis.
Can this breaker be used in reverse feed applications?
Yes, Siemens BQD frame circuit breakers are approved for reverse feed applications. They do not have line and load restrictions, allowing them to be back-fed safely.
What is the difference between the Siemens BQD and CQD frame breakers?
While both share similar internal mechanisms and ratings, the BQD frame is designed for bolt-on panelboard mounting. The CQD frame is designed for independent mounting on a customer-supplied DIN rail or bolted directly to a surface.
Is this breaker suitable for HVAC equipment?
Yes, the BQD12000S01 is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires this specific overcurrent protection rating.
How is the shunt trip wired on the BQD12000S01?
The factory-installed shunt trip features external wire leads that must be connected to a 120VAC control circuit. When the control circuit is energized, the coil mechanically opens the breaker contacts to interrupt the primary circuit.
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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 61 reviews.
4.9
Rated 4.9 out of 5 stars
Based on 61 reviews
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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.
Siemens BQD380 - 80A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/11/26
Used 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.
BC
Bubba C.
Verified Buyer
Reviewing
Siemens BQD390 - 90A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/24/26
BQD 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!
LP
LUCIAN P.
Verified Buyer
Reviewing
Siemens BQD2100 - 100A 2 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/21/26
Super 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.
RG
Ron G.
Verified Buyer
Reviewing
Siemens BQD320 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/2/26
Breakers
Order was shipped and on time. The ordering process was easy and the service was great.
GN
Greg N.
Verified Buyer
Reviewing
Siemens BQD340 - 40A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/26/26
Excellent 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.