A reliable solution for commercial power distribution, the Siemens BQD220 is a 20-amp, 2-pole molded case circuit breaker. It fits perfectly into Siemens P1 through P5 panelboards, utilizing a sturdy bolt-on mechanism that prevents loose connections in high-vibration environments. Carrying both HACR and SWD ratings, this device is ideal for switching fluorescent lighting loads and protecting HVAC equipment. It features standard fixed trip units for straightforward operation.
How does the BQD220 install into Siemens panelboards?
It utilizes a bolt-on mounting configuration that fastens directly to the internal bus bars of compatible Siemens P1, P2, P3, P4, and P5 distribution panels.
Is the BQD220 suitable for ungrounded 480V Delta systems?
No. The maximum AC voltage rating is 480Y/277VAC, which restricts its use to solidly grounded wye systems. Installing it on an ungrounded or corner-grounded 480V Delta system violates its voltage rating and compromises safety.
What type of wiring is compatible with the factory lugs on the BQD220?
The standard terminal lugs are dual-rated for copper and aluminum conductors. You can terminate 14 to 6 AWG copper wire or 12 to 6 AWG aluminum wire directly to the breaker.
Does the BQD220 allow for field-adjustable trip settings?
No. This breaker features a fixed thermal-magnetic trip unit. Both the long-time overload and instantaneous short-circuit trip thresholds are set at the factory and cannot be modified.
Can the BQD220 be deployed in direct current (DC) circuits?
Yes. While commonly used in alternating current panels, this breaker is fully rated for DC circuits up to 125/250VDC with a 14kA interrupting capacity.
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Shipping
Free Shipping Policy
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 62 reviews.
4.9
Rated 4.9 out of 5 stars
Based on 62 reviews
5
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58
4
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4
3
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2
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Reviews Summary
Generated by AI from 62 most recent customer reviews
Last updated 10/29/26
Customers say these breakers arrive quickly and are priced competitively. The ordering process is straightforward and easy to navigate. Many reviews highlight fast shipping that often exceeds expectations, with inventory readily available. Customers appreciate the product quality and condition, noting breakers perform as described. Common feedback addresses responsive customer service and knowledgeable staff. The combination of competitive pricing, rapid delivery, and reliable service creates a positive purchasing experience for repeat customers.
Siemens BQD340 - 40A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
10/28/26
40A 3 Pole BQD340
Breaker was as ordered, showed up as expected and on time. Happy!
PC
PACIFIC C. B.
Verified Buyer
Reviewing
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.