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Eaton / Cutler-Hammer QBHW3030H Miniature Circuit Breaker

  • 30A
  • 3 Pole
  • Bolt-On
Eaton / Cutler-Hammer QBHW3030H
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU QBHW3030H
Select Item Condition
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  • 30A
  • 3 Pole
  • Bolt-On

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Eaton / Cutler-Hammer QBHW3030H - 30A 3 Pole Miniature Circuit Breaker

Eaton / Cutler-Hammer QBHW3030H - 30A 3 Pole Miniature Circuit Breaker

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$149.99 In Stock

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Description

Created for commercial electrical systems, the Eaton QBHW3030H is a 30-amp miniature circuit breaker. It utilizes advanced thermal-magnetic trip technology to prevent equipment damage from overloads. This three-pole device mounts securely into Eaton Pow-R-Line 1a and 2a panelboards using a standard bolt-on connection. The included box lugs accept 14-4 AWG copper or aluminum wiring. Operating at 240VAC, it boasts a 22 kAIC interrupt capacity and carries a strict HACR certification.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number QBHW3030H
Series QBHW
Amperage 30A
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 1a Panelboards, Eaton Pow-R-Line 2a Panelboards
Wire Gauge 14-4 AWG (Cu/Al)
Max Wire 4 AWG
Min Wire 14 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

Product FAQs

6 answers
What is the difference between the Eaton BAB3030H and QBHW3030H breakers?

Both are 3-pole, 30-amp, bolt-on Quicklag miniature breakers. The difference is the short circuit interrupting capacity. The BAB3030H is rated at 10 kAIC, while the QBHW3030H has a higher rating of 22 kAIC at 240VAC.

Which panelboards accept the QBHW3030H breaker?

This bolt-on breaker mounts into modern Eaton Pow-R-Line 1a and 2a lighting panelboards. Because Eaton acquired Cutler-Hammer and Westinghouse, it is also a direct, UL-listed replacement for legacy Westinghouse and Cutler-Hammer Quicklag B frame bolt-on breakers.

Can the QBHW3030H be installed in a standard residential load center?

No. This breaker requires a commercial bolt-on panelboard bus. It will not snap into plug-on residential load centers like the Eaton BR, Type CH, or standard plug-on Westinghouse panels.

Is the QBHW3030H breaker HACR rated?

Yes, this model carries an HACR rating, making it fully certified for use with dedicated heating, air conditioning, and refrigeration equipment.

How many spaces does this breaker occupy in a panel?

The QBHW3030H is a 3-pole breaker built on the 1-inch Quicklag format. It requires three full 1-inch spaces on the panelboard bus.

Are the box lugs on this breaker rated for aluminum conductors?

Yes, the factory-installed box lugs are AL/CU rated, meaning they accept both aluminum and copper wiring. The supported wire gauge range is 14 AWG to 4 AWG.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 11 reviews
Rating
Ratings
11 reviews
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    Calvin M.
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    I recommend this product
    Rated 4 out of 5 stars
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    SuperBreakers haven't disappointed me yet. They always have what I need and very timely deliveries!

  • WJ
    William J.
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    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
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    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