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Siemens BQD280 Molded Case Circuit Breaker

  • 80A
  • 2 Pole
  • Bolt-On
Siemens BQD280
Molded Case Circuit Breaker
Brand Siemens
SKU BQD280
Select Item Condition
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  • 80A
  • 2 Pole
  • Bolt-On

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Siemens BQD280 - 80A 2 Pole Molded Case Circuit Breaker

Siemens BQD280 - 80A 2 Pole Molded Case Circuit Breaker

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$220.40 In Stock

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Description

Engineered for heavy-duty commercial use, this 80-amp Siemens MCCB utilizes fixed thermal-magnetic trip technology to guard against overloads. The compact BQD frame maximizes available space within the enclosure. This unit is specifically manufactured to mount into Siemens P1 through P5 panelboards. Its bolt-on configuration guarantees a stable mechanical and electrical bond to the panel bus. Capable of interrupting 65 kAIC at 240V, it meets rigorous safety standards and is HACR rated.

Specifications

Key specifications
Brand Siemens
Part Number BQD280
Series BQD
Amperage 80A
Poles 2
Mounting Style Bolt-On
Voltage 240VAC, 480Y/277VAC, 125/250VDC
Phase 1
AIC Rating 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, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip, Reverse Feed

Product FAQs

8 answers
Which panelboards are compatible with the Siemens BQD280 circuit breaker?

The BQD280 is a bolt-on molded case circuit breaker designed specifically for use with Siemens P1, P2, P3, P4, and P5 panelboards.

What wire sizes are accepted by the lugs on the BQD280?

The factory-installed lugs on the BQD280 accept 8-1 AWG copper (Cu) or 6-1/0 AWG aluminum (Al) conductors.

What is the difference between Siemens BQD and CQD frame circuit breakers?

While both share the same frame size and electrical ratings, BQD breakers like the BQD280 are designed for bolt-on installation in panelboards. CQD breakers are designed for independent mounting on a standard DIN rail or for surface mounting.

Is the Siemens BQD280 suitable for reverse feed applications?

Yes, Siemens BQD series circuit breakers, including the 80A BQD280, are suitable for reverse feed applications.

Is the BQD280 HACR rated?

Yes, Siemens BQD breakers in the 15A to 100A range are HACR rated, making the BQD280 suitable for use with heating, air conditioning, and refrigeration equipment.

Can the BQD280 be used in DC electrical systems?

Yes, the BQD280 is rated for DC applications up to 125/250VDC, providing an interrupting capacity of 14kAIC for direct current circuits.

Does the BQD280 feature adjustable trip settings?

No, the BQD280 has a fixed thermal magnetic trip unit. The long-time and instantaneous (LI) trip functions are factory-set and cannot be adjusted in the field.

How does the BQD280 mount into the panelboard?

The BQD280 features a bolt-on connection type, securing directly to the busbars of compatible Siemens panelboards rather than snapping into place.

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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.