Skip to main content
Expedited shipping available at checkout

Siemens BQD2100 Molded Case Circuit Breaker

  • 100A
  • 2 Pole
  • Bolt-On
Siemens BQD2100
Molded Case Circuit Breaker
Brand Siemens
SKU BQD2100
Select Item Condition
Earn 116 SuperPoints
  • 100A
  • 2 Pole
  • Bolt-On

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Siemens BQD2100 - 100A 2 Pole Molded Case Circuit Breaker

Siemens BQD2100 - 100A 2 Pole Molded Case Circuit Breaker

Re-Certified

$116.00 In Stock

Quantity

Similar Items

Description

Engineered for industrial environments, the Siemens BQD2100 is a 100-amp, two-pole MCCB delivering dependable thermal-magnetic overcurrent protection. It features a quick-make, quick-break mechanism to ensure reliable operation. Designed with a low-tab bolt-on connection, this breaker integrates seamlessly into Siemens P1 through P5 series panelboards. With an interrupting capacity of 65kA at 240V and 14kA at 480Y/277V, it is HACR rated and comes equipped with standard load-side lugs.

Specifications

Key specifications
Brand Siemens
Part Number BQD2100-R
Series BQD
Amperage 100A
Poles 2
Mounting Style Bolt-On
Voltage 120VAC, 240VAC, 480Y/277VAC, 125/250VDC
Phase 1
AIC Rating 65kA @ 120VAC, 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC
Fit and installation
Frame Type BQD
Terminal Type Lugs
For Use With Siemens P1, P2, P3, P4, P5 Panelboards
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)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, UL 489
Approval CSA, HACR, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism

Product FAQs

8 answers
Which panelboards accept the Siemens BQD2100 circuit breaker?

The BQD2100 is designed for bolt-on installation in Siemens P1, P2, P3, P4, and P5 panelboards.

Is the Siemens BQD2100 suitable for reverse feed applications?

Yes, Siemens BQD series molded case circuit breakers are suitable for reverse feed applications.

Is this 100A BQD breaker HACR rated?

Yes, the Siemens BQD2100 is HACR rated for use with heating, air conditioning, and refrigeration equipment.

What wire sizes are accepted by the lugs on the BQD2100?

The factory installed lugs accept 8 to 1 AWG copper wire or 6 to 1/0 AWG aluminum wire.

What is the DIN rail mount equivalent of the BQD2100?

The Siemens CQD2100 is the equivalent 100A, 2-pole breaker designed for DIN rail mounting or surface mounting with cable-in and cable-out connections.

Does the BQD2100 mount to a standard DIN rail?

No, the BQD2100 is a bolt-on circuit breaker designed specifically for Siemens panelboard bus connections. For a DIN rail mountable version, you will need the CQD2100.

Does the BQD2100 provide ground fault or arc fault protection?

No, this is a standard thermal magnetic circuit breaker with fixed long-time and instantaneous trip functions. It does not include GFCI or AFCI protection.

Can the BQD2100 be used on a 480V grounded B phase delta system?

No, Siemens BQD breakers are not suitable for 3-phase delta 480V AC grounded B phase applications. They are rated for 480Y/277VAC solid grounded wye systems.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

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.

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.

Reviews

4.9
Rated 4.9 out of 5 stars
Based on 61 reviews
Reviews Summary
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.
Rating
Ratings
61 reviews
  • 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.

  • 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.