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Eaton / Cutler-Hammer QBHW3050H Miniature Circuit Breaker

  • 50A
  • 3 Pole
  • Bolt-On
Eaton / Cutler-Hammer QBHW3050H
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU QBHW3050H
Select Item Condition
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  • 50A
  • 3 Pole
  • Bolt-On

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Eaton / Cutler-Hammer QBHW3050H - 50A 3 Pole Miniature Circuit Breaker

Eaton / Cutler-Hammer QBHW3050H - 50A 3 Pole Miniature Circuit Breaker

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$185.83 In Stock

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Description

Part of the Quicklag family, this 50A miniature circuit breaker provides robust thermal-magnetic protection for commercial and industrial systems. It is designed to handle demanding loads while maintaining consistent performance across 3-phase applications. The bolt-on design installs into Eaton Pow-R-Line panelboards, ensuring a secure connection. It accepts 14-4 AWG wire via standard box lugs. Rated for 22kAIC at 240VAC, this HACR-rated breaker offers dependable branch circuit protection.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number QBHW3050H
Series QBHW
Amperage 50A
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
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
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, HACR, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated

Product FAQs

6 answers
What panelboards are compatible with the QBHW3050H?

This breaker is designed for use in Eaton and Cutler-Hammer Pow-R-Line panelboards, specifically the PRL1a, PRL2a, and PRL3a series.

What is the difference between the BAB3050 and the QBHW3050H?

Both are 50A, 3-pole, bolt-on breakers with identical physical dimensions. The difference is their interrupting capacity. The BAB3050 is rated at 10 kAIC, while the QBHW3050H is rated at 22 kAIC for systems with higher available fault current.

Can I use a QBH3050 instead of a QBHW3050H?

No. While both are Eaton bolt-on breakers, they have different form factors. The QBH series has a 3/4-inch per pole width and fits older Sylvania or Command panels. The QBHW series has a standard 1-inch per pole width designed for Pow-R-Line panels.

Is the QBHW3050H HACR rated?

Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.

Do I need special lugs to use aluminum wire with this breaker?

No, the factory-installed box lugs on the QBHW3050H are AL/CU rated. They safely accept both aluminum and copper conductors ranging from 14 AWG to 4 AWG.

Does the QBHW3050H require a separate mounting kit?

No, it is a standard bolt-on breaker. It mounts directly to the busbar of compatible Pow-R-Line panelboards using its integrated bolt-on tabs, providing a secure and vibration-resistant connection.

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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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    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