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Eaton / Cutler-Hammer QBHW1020S Miniature Circuit Breaker

  • 20A
  • 1 Pole
  • Bolt-On
Eaton / Cutler-Hammer QBHW1020S
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU QBHW1020S
Select Item Condition
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  • 20A
  • 1 Pole
  • Bolt-On

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Eaton / Cutler-Hammer QBHW1020S - 20A 1 Pole Miniature Circuit Breaker

Eaton / Cutler-Hammer QBHW1020S - 20A 1 Pole Miniature Circuit Breaker

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$263.90 In Stock

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Description

Delivering advanced control, the Eaton QBHW1020S is a single-pole, 20-amp miniature circuit breaker. It is specifically designed for commercial and industrial applications requiring remote shutdown capabilities. This Quicklag series breaker features a bolt-on mounting design for seamless integration into Eaton Pow-R-Line panelboards. It utilizes box lugs that accept 14-4 AWG wire sizes.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Series QBHW
Amperage 20A
Poles 1
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 14-4 AWG
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 Auxiliary Switch, Alarm Switch, Padlock Attachment
Accessories Shunt Trip
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, SWD Rated, Non-Interchangeable Trip, High Interrupting Capacity

Product FAQs

6 answers
What does the S suffix mean in the QBHW1020S catalog number?

The S suffix indicates this breaker includes a factory-installed shunt trip. This allows the breaker to be tripped remotely using a 120V, 208V, or 240V AC control signal.

Does the shunt trip on the QBHW1020S require additional panel space?

Yes. The factory-installed shunt trip module is attached to the right-hand side of the breaker. Because of this, the 1-pole breaker will occupy two pole spaces in your panelboard.

Which panelboards are compatible with the QBHW1020S?

This bolt-on breaker is designed for Eaton Pow-R-Line panelboards, such as the PRL1a and PRL2a series, that accept BAB or QBHW frame breakers.

How does the QBHW series differ from standard BAB breakers?

Both are bolt-on Quicklag breakers that fit the same panels, but the QBHW series features a higher interrupting rating of 22kAIC. Standard BAB breakers are rated at 10kAIC.

Is the QBHW1020S rated for switching fluorescent lighting loads?

Yes, standard 15A and 20A Eaton Quicklag breakers carry an SWD (Switching Duty) rating, making them suitable for controlling 120V fluorescent lighting circuits.

Is this breaker HACR rated for HVAC applications?

Yes, the QBHW1020S is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires this specific protection.

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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