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Siemens BQ1B02000S01 Molded Case Circuit Breaker

  • 20A
  • 1 Pole
  • Bolt-On
Siemens BQ1B02000S01
Molded Case Circuit Breaker
Brand Siemens
SKU BQ1B02000S01
Select Item Condition
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  • 20A
  • 1 Pole
  • Bolt-On

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Siemens BQ1B02000S01 1 Pole Circuit Breaker

Siemens BQ1B02000S01 - 20A 1 Pole Molded Case Circuit Breaker

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$232.00 In Stock

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Description

Built for specialized control applications, the BQ1B02000S01 is a 1-pole, 20A breaker featuring a factory-installed 120VAC shunt trip. This allows the unit to be tripped remotely via an external voltage signal for safety interlocks. Designed for bolt-on installation, this breaker fits seamlessly into Siemens P1, P2, and P3 panelboards. It utilizes standard load side lugs that accommodate 14-6 AWG copper or 12-6 AWG aluminum conductors.

Specifications

Key specifications
Brand Siemens
Part Number BQ1B02000S01
Series BQ
Amperage 20A
Poles 1
Mounting Style Bolt-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Frame Type BQ
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards
Wire Gauge 14-6 AWG (Cu), 12-6 AWG (Al)
Max Wire 6 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Auxiliary Switch, Alarm Switch, Padlock Attachment
Accessories Shunt Trip 120VAC, Load Side Lugs
Standards CSA C22.2 No. 5, HACR Rated, SWD Rated, UL 489
Approval CSA, UL
Temp Rating 40C

Product FAQs

6 answers
Which panelboards are compatible with the BQ1B02000S01?

This bolt-on breaker is designed specifically for use in Siemens P1, P2, and P3 panelboards.

What does the 00S01 suffix mean for this breaker?

The 00S01 suffix indicates that the breaker includes a factory-installed 120VAC shunt trip. This allows the unit to be tripped remotely via an external voltage signal for safety interlocks or emergency stops.

What wire sizes do the lugs on the BQ1B02000S01 accept?

The standard load lugs accommodate 14-6 AWG copper (Cu) or 12-6 AWG aluminum (Al) conductors.

Can this breaker replace older ITE BQ series models?

Yes. Siemens acquired ITE, and the BQ1B02000S01 is a direct replacement for legacy ITE breakers with the same catalog number and 120VAC shunt trip requirement.

Is the BQ1B02000S01 HACR rated?

Yes, this breaker is HACR rated for use with heating, air conditioning, and refrigeration equipment. It is also UL Listed and CSA Certified.

What type of circuit protection does this breaker provide?

It features a fixed thermal-magnetic trip unit with long-time and instantaneous (LI) functions for standard overload and short circuit protection, alongside the 120VAC shunt trip for remote safety disconnects.

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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 73 reviews
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.
Rating
Ratings
73 reviews
  • HS
    Hector S.
    Verified Buyer
    Reviewing
    Siemens BQ3B100H - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/27/26
    Perfect replacement

    Fit perfectly and good price

  • AF
    Anthony F.
    Verified Buyer
    Reviewing
    Siemens BQ2B020 - 20A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/25/26
    works as expected

    works as expected

  • MS
    Mike S.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BQ250250 - 50/50A Quadplex Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/12/26
    Electrical company

    Breaker worked awesome thank you very much

  • PE
    Philip E.
    Verified Buyer
    Reviewing
    Siemens BQ3B020 - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/10/26
    Siemens BQ3B020

    The breaker arrived as described and on time. It works as expected. I will order from SuperBreakers again in the future without hesitation.

  • PL
    Paul L.
    Verified Buyer
    Reviewing
    Siemens BQ1B020 - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/23/26
    Breaker

    Quick shipping. Exact fit.