Skip to main content
Expedited shipping available at checkout

Eaton / Cutler-Hammer QBHW3090H Miniature Circuit Breaker

  • 90A
  • 3 Pole
  • Bolt-On
Eaton / Cutler-Hammer QBHW3090H
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU QBHW3090H
Select Item Condition
Earn 307 SuperPoints
  • 90A
  • 3 Pole
  • Bolt-On

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Eaton / Cutler-Hammer QBHW3090H - 90A 3 Pole Miniature Circuit Breaker

Eaton / Cutler-Hammer QBHW3090H - 90A 3 Pole Miniature Circuit Breaker

New

$307.40 In Stock

Quantity

Similar Items

Description

Built for heavy-duty commercial use, the Eaton QBHW3090H is a 90A, 3-pole thermal-magnetic circuit breaker. As part of the industrial Quicklag series, it provides dependable long-time and instantaneous trip functions for complex electrical systems. Designed for seamless integration, this breaker bolts into Eaton Pow-R-Line panelboards and serves as a replacement for older Westinghouse panels. The bolt-on design guarantees a stable connection.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number QBHW3090H
Series QBHW
Amperage 90A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC
Phase 3
AIC Rating 22kA @ 240VAC
Fit and installation
Terminal Type Box Lugs
For Use With Eaton Pow-R-Line Panelboards, Westinghouse 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
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

Product FAQs

5 answers
What panelboards are compatible with the QBHW3090H circuit breaker?

This bolt-on breaker is designed for use in Eaton Pow-R-Line panelboards and legacy Westinghouse panelboards that accept Quicklag B-frame breakers.

What is the difference between the Eaton QBHW3090H and the BAB3090H?

Both are 90-amp, 3-pole bolt-on breakers with the same physical dimensions, but they have different interrupting ratings. The QBHW3090H has a 22kAIC rating at 240VAC, whereas the BAB series is rated for 10kAIC.

Can I use the QBHW3090H to replace an older Westinghouse QBHW breaker?

Yes. Eaton acquired the Westinghouse distribution equipment line, so the current Eaton Cutler-Hammer QBHW3090H is the direct replacement for the older Westinghouse version with the same catalog number.

Is the Eaton QBHW3090H HACR rated?

Yes, this breaker is HACR rated, making it suitable and safe for use with heating, air conditioning, and refrigeration equipment.

Why use a bolt-on breaker like the QBHW3090H instead of a plug-on type?

Bolt-on breakers provide a secure, mechanically fastened connection to the panelboard bus bar. This prevents the breaker from loosening over time due to vibrations or thermal cycling, which is why they are often required in commercial and industrial environments.

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

4.8
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