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Eaton / Cutler-Hammer QBHW2090 Miniature Circuit Breaker

  • 90A
  • 2 Pole
  • Bolt-On
Eaton / Cutler-Hammer QBHW2090
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU QBHW2090
Select Item Condition
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  • 90A
  • 2 Pole
  • Bolt-On

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Eaton / Cutler-Hammer QBHW2090 - 90A 2 Pole Miniature Circuit Breaker

Eaton / Cutler-Hammer QBHW2090 - 90A 2 Pole Miniature Circuit Breaker

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$170.80 In Stock

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Description

Crafted for demanding commercial environments, the Eaton QBHW2090 is a 2-pole, 90A miniature circuit breaker. It utilizes proven thermal-magnetic trip technology to protect against overloads and short circuits in heavy-duty applications. This unit mounts into Eaton and Cutler-Hammer Pow-R-Line panelboards. The bolt-on connection provides a highly secure, vibration-proof fit to the panel bus, making it an excellent choice for industrial facilities.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number QBHW2090
Series QBHW
Amperage 90A
Poles 2
Mounting Style Bolt-On
Voltage 120/240VAC
Phase 1
AIC Rating 22kA @ 120/240VAC
Fit and installation
Frame Type BAB
Terminal Type Box Lugs
For Use With Eaton Pow-R-Line Panelboards
Wire Gauge 8-1/0 AWG (Cu/Al)
Max Wire 1/0 AWG
Min Wire 8 AWG
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 Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment
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, Common Trip

Product FAQs

5 answers
What panelboards are compatible with the QBHW2090?

This bolt-on breaker is designed for use in Eaton Pow-R-Line panelboards, including the PRL1a, PRL2a, and PRL3a series. It is also backward compatible with legacy Cutler-Hammer and Westinghouse panels that accept Quicklag bolt-on breakers.

What is the difference between the BAB2090 and the QBHW2090?

Both are 90A, 2-pole Quicklag bolt-on breakers with identical physical dimensions and mounting. The difference is their short-circuit interrupting rating. The BAB2090 is rated at 10 kAIC, while the QBHW2090 features a higher 22 kAIC rating.

Is the QBHW2090 HACR rated?

Yes, this breaker carries an HACR rating, meaning it is tested and approved for use with heating, air conditioning, and refrigeration equipment.

How much panel space does the QBHW2090 require?

As a 2-pole Quicklag breaker, it mounts directly to the panel bus using a bolt-on connection and occupies two standard 1-inch spaces.

Can I use the QBHW2090 to replace an older Westinghouse Quicklag breaker?

Yes, Eaton manufactures the current QBHW series as the direct replacement for legacy Westinghouse and Cutler-Hammer Quicklag bolt-on breakers. Always verify that your panel and application require a 22 kAIC interrupting rating before installing.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 11 reviews
Rating
Ratings
11 reviews
  • CM
    Calvin M.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer QBHW2100 - 100A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    7/22/26
    SuperBreakers

    SuperBreakers haven't disappointed me yet. They always have what I need and very timely deliveries!

  • WJ
    William J.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer QBHW1020 - 20A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/2/26
    Emergency-Overnight Purchase and Delivery

    I needed breaker ASAP and SuperBreakers made it happen!

  • NS
    Nathan S.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer QBHW2040S - 40A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/19/26
    Arrived Just in Time

    Always satisfied with my SuperBreakers purchases!

  • PM
    Pete M.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer QBHW2015 - 15A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/12/25
    Great service and very helpful

    Knowledgable staff, easy to use website. Quick shipping turnaround.

  • BC
    Brian C.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer QBHW2020 - 20A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/9/23
    plug & play

    Your website is very user friendly parts arrived promptly exact same parts no issues