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Eaton / Cutler-Hammer QBHW1030 Miniature Circuit Breaker

  • 30A
  • 1 Pole
  • Bolt-On
Eaton / Cutler-Hammer QBHW1030
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU QBHW1030
Select Item Condition
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  • 30A
  • 1 Pole
  • Bolt-On

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Eaton / Cutler-Hammer QBHW1030 - 30A 1 Pole Miniature Circuit Breaker

Eaton / Cutler-Hammer QBHW1030 - 30A 1 Pole Miniature Circuit Breaker

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$40.00 In Stock

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Description

Part of the Quicklag series, the Eaton QBHW1030 provides thermal-magnetic protection for commercial systems. This 1-pole, 30A breaker is rated for 120/240VAC and features a non-interchangeable trip unit. Mounts into Eaton Pow-R-Line panelboards, offering a secure bolt-on connection. It also serves as an exact replacement for the legacy QBH1030, ensuring seamless upgrades. Rated at 22 kAIC, this miniature breaker delivers robust fault protection. It is HACR rated and accepts 14-4 AWG wire.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number QBHW1030
Series QBHW
Amperage 30A
Poles 1
Mounting Style Bolt-On
Voltage 120/240VAC, 48VDC
Phase 1
AIC Rating 22kA @ 120/240VAC, 5kA @ 48VDC
Fit and installation
Frame Type BAB
Terminal Type Box Lugs
For Use With Eaton Pow-R-Line 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, HACR, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Non-Interchangeable Trip

Product FAQs

5 answers
Which panelboards are compatible with the QBHW1030 circuit breaker?

This bolt-on breaker is designed for use in Eaton Pow-R-Line panelboards, specifically fitting the Pow-R-Line 1, 1a, 2, 2a, 1X, 2X, and 3X series enclosures.

What is the difference between Eaton QBHW and BAB circuit breakers?

Both are Quicklag-B frame bolt-on breakers that share the exact same physical footprint and fit the same panelboards. The difference lies in the interrupting rating: BAB breakers are rated at 10kAIC, while QBHW breakers provide a higher 22kAIC rating.

Is the QBHW1030 HACR rated?

Yes, Eaton Quicklag bolt-on breakers from 15A to 100A are HACR rated, making them approved for use with heating, air conditioning, and refrigeration equipment.

Can the QBHW1030 be used to switch fluorescent lighting?

Yes, this breaker is Switching Duty (SWD) rated for 120 VAC fluorescent light applications, meaning it is tested and approved to be used as a regular switch for these lighting circuits.

Will the Eaton QBHW1030 replace an older Westinghouse or Cutler-Hammer QBHW1030?

Yes. Eaton acquired both the Westinghouse and Cutler-Hammer distribution equipment lines. The current Eaton QBHW1030 is a direct, UL listed replacement for legacy Westinghouse and Cutler-Hammer breakers sharing the same catalog number.

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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