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.
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
Review summary
Customers rate this product 4.8 out of 5 based on 11 reviews.