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Siemens BQ3B100 - 100A 3 Pole Molded Case Circuit Breaker

Brand Siemens
SKU BQ3B100
4.9
Rated 4.9 out of 5 stars
66 Reviews
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99

Siemens BQ3B100 - 100A 3 Pole Molded Case Circuit Breaker

Brand Siemens
SKU BQ3B100
4.9
Rated 4.9 out of 5 stars
66 Reviews
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Earn 161 SuperPoints

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Siemens BQ3B100 - 100A 3 Pole Molded Case Circuit Breaker

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$161.70 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
Part of the BQ series, this 100A three-pole molded case circuit breaker delivers standard commercial overcurrent protection. It features a thermal-magnetic trip unit configured for 240VAC systems. Designed for seamless integration, the unit installs into Siemens P1 panelboards and legacy ITE enclosures. The bolt-on mounting style ensures a secure mechanical connection for demanding environments. Rated at 10kA interrupting capacity, this HACR-certified component accepts 8-1 AWG copper wire.

Specifications

Brand Siemens
Series BQ
Part Number BQ3B100
Amperage 100A
Voltage 240VAC
Poles 3
Phase 3
AIC Rating 10kA @ 240VAC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Siemens P1 Panelboards, ITE Panelboards
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
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)
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, HACR Rated, UL 489
Approval CSA, HACR, 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.

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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.
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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 66 reviews
Total 5 star reviews: 62 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 circuit breakers fit perfectly and work as expected. Many reviews mention fast shipping and excellent packaging that prevents damage. Common feedback includes the availability of hard-to-find models and competitive pricing. Some note that terminals need to be ordered separately. Reviews frequently highlight the straightforward installation process and reliable functionality.
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66 reviews
  • 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?
  • JM
    John M.
    Verified Buyer
    Reviewing
    Siemens BQ3B050 - 50A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/27/26
    Fast shipping, great availability. Worked perfectly

    Breaker was shipped fast, exactly as described. Well packaged. Perfect for the job.

    Was this helpful?

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