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Siemens BQ1B020 - 20A 1 Pole Molded Case Circuit Breaker

Brand Siemens
SKU BQ1B020
4.9
Rated 4.9 out of 5 stars
67 Reviews
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99

Siemens BQ1B020 - 20A 1 Pole Molded Case Circuit Breaker

Brand Siemens
SKU BQ1B020
4.9
Rated 4.9 out of 5 stars
67 Reviews
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Siemens BQ1B020 - 20A 1 Pole Molded Case Circuit Breaker

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$14.64 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
The BQ1B020 is a 1-pole, 20A molded case circuit breaker engineered for commercial power distribution. It delivers reliable thermal-magnetic trip protection with a 10kAIC rating at 120/240VAC. This bolt-on breaker installs securely into Siemens P1, P2, and P3 panelboards. It comes equipped with load side lugs and accepts 14-6 AWG copper or 12-6 AWG aluminum wiring for flexible installation. This BQ frame breaker is SWD, HID, and HACR rated, making it suitable for lighting and HVAC loads.

Specifications

Brand Siemens
Series BQ
Part Number BQ1B020
Amperage 20A
Voltage 120/240VAC
Poles 1
Phase 1
AIC Rating 10kA @ 120/240VAC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Wire Gauge 14-6 AWG (Cu), 12-6 AWG (Al)
Max Wire 6 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Handle Tie
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, HACR Rated, HID Rated, SWD Rated, UL 489
Approval CSA, HACR, HID, SWD, UL
Temp Rating 40C

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Warranties

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When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.

If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.

Click here to read our full warranty details

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.

Click here to read our full shipping policy
Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

4.9
Rated 4.9 out of 5 stars
Based on 67 reviews
Total 5 star reviews: 63 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
Reviews Summary
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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67 reviews
  • TL
    Terry L.
    Verified Buyer
    Reviewing
    Siemens BQ3B040H - 40A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/2/26
    Electrician

    I appreciate the fast service

    Was this helpful?
  • JF
    James F.
    Verified Buyer
    Reviewing
    Siemens BQ2B030 - 30A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/28/26
    Siemans

    Excellent service

    Was this helpful?
  • DQ
    David Q.
    Verified Buyer
    Reviewing
    Siemens BQ1B020 - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/27/26
    Great Customer Service

    Breakers ship fast and always at a great price

    Was this helpful?
  • MZ
    Michael Z.
    Verified Buyer
    Reviewing
    Siemens BQ3B020 - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/20/26
    Breaker

    Works. Great and good follow up!

    Was this helpful?
  • JS
    John S.
    Verified Buyer
    Reviewing
    Siemens BQ3B030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/13/26
    easy to find a hard to find breaker

    I was struggling finding the correct breaker, no one in our community had one, I went on line and found it quickly here. it was shipped rite away and I was able to get out business up and going agiain!! THANK YOU

    Was this helpful?

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