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Eaton / Cutler-Hammer QBGF2040 GFCI Miniature Circuit Breaker

  • 40A
  • 2 Pole
  • Bolt-On
Eaton / Cutler-Hammer QBGF2040
GFCI Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU QBGF2040
Select Item Condition
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  • 40A
  • 2 Pole
  • Bolt-On

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Eaton / Cutler-Hammer QBGF2040 - 40A GFCI Miniature Circuit Breaker

Eaton / Cutler-Hammer QBGF2040 - 40A GFCI Miniature Circuit Breaker

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$339.30 In Stock

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Description

Built for commercial and industrial applications, the Eaton QBGF2040 is a 2-pole, 40-amp miniature circuit breaker from the Quicklag family. It delivers reliable ground fault protection with a 5mA trip sensitivity to meet NEC safety requirements for wet or damp locations. This bolt-on breaker mounts securely into Eaton Pow-R-Line and Quicklag panelboards. Rated at 10 kAIC at 120/240V, it features thermal-magnetic trip technology and is a direct predecessor to the QBGFT2040 self-test model.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number QBGF2040
Series QBGF
Amperage 40A
Poles 2
Mounting Style Bolt-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Frame Type BAB
Terminal Type Box Lugs
For Use With Eaton Pow-R-Line Panelboards, Eaton Quicklag Panelboards
Wire Gauge 8-6 AWG (Cu), 6-4 AWG (Al)
Max Wire 4 AWG
Min Wire 8 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LIG
Trip Function Long-Time, Instantaneous, Ground Fault
Trip Adjustability Fixed
Standards and features
Special Classification GFCI
Available Options Shunt Trip, Auxiliary Switch, Bell Alarm, Padlock Attachment
Accessories Load Side Lugs Included
Standards HACR, UL 489, UL 943
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Non-Interchangeable Trip, Common Trip, Visual Trip Indicator, Self-Test

Product FAQs

6 answers
Which panelboards are compatible with the QBGF2040 circuit breaker?

This bolt-on breaker is designed for use in Eaton Pow-R-Line and Quicklag panelboards. It is not compatible with standard plug-on load centers.

What is the ground fault trip sensitivity for this breaker?

The QBGF2040 features a 5mA trip sensitivity, providing Class A ground fault protection for personnel in wet or damp locations to meet NEC requirements.

Is the QBGF2040 the same as the QBGFT2040?

The QBGF2040 is the direct predecessor to the QBGFT2040. The newer QBGFT2040 includes an auto-monitoring self-test feature, but both share the same physical dimensions, 10kAIC rating, and bolt-on mounting.

What is the difference between Eaton QBGF and QBHGF breakers?

The primary difference is the interrupting rating. The QBGF series is rated at 10kAIC, while the QBHGF series provides a higher 22kAIC rating for systems with higher available fault current.

How is the neutral connection wired on the QBGF2040?

This breaker includes a pigtail neutral wire that must be connected directly to the panel neutral bus bar for the ground fault detection circuitry to function properly.

Does this breaker require a bolt-on connection?

Yes, the QBGF2040 is a bolt-on breaker from the Quicklag family. It secures directly to the panelboard bus with a bolted connection, ensuring a reliable contact in commercial and industrial applications.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 11 reviews
Total 5 star reviews: 9 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
11 reviews
  • PS
    Patrick S.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer QBGF2030 - 30A GFCI Miniature Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    3/10/26
    Pleasantly Surprised!

    Items came new, in factory boxes. Well packaged, not damaged.

    Someone cared when the order was picked and packaged that says a lot.

    Thanks

    Patrick

  • JS
    John S.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer QBGF2030 - 30A GFCI Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/13/21
    QOB

    Breakers were delivered in a timely manner. Once again, Super Breakers came thru!

  • JG
    James G.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer QBGF1020 - 20A GFCI Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/23/20
    great product

    I always know that I will get exactly what I ordered and in a fast manner.

  • MB
    Marc B.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer QBGF2030 - 30A GFCI Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    10/21/19
    Right stuff, right price

    Got an Eaton "BR" type 2 pole 30A bolt-in GFI breaker. OEM packaging and paperwork inside. Would buy from them again.

  • TS
    Timothy S.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer QBGF1020 - 20A GFCI Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/7/19
    GFCI circuit breaker.

    Purchased for Pool electrical inspection. Shipped quickly. Installed and working fine.