Built to handle elevated fault currents, the QOB380VH provides 22kAIC interrupting capacity for commercial and industrial electrical systems. This 80-amp, three-pole miniature circuit breaker installs into Square D NQ and NQOD panelboards via a sturdy bolt-on connection. The thermal-magnetic trip unit ensures reliable overcurrent and short-circuit protection. It features a Visi-Trip red indicator flag for quick identification of tripped circuits and accepts up to 2/0 AWG wire.
Visual Trip Indicator, HACR Rated, Common Trip, High Interrupting Capacity
Product FAQs
6 answers
What panelboards are compatible with the QOB380VH?
This bolt-on circuit breaker is designed for use in Square D NQ and NQOD panelboards. It will not fit standard QO load centers, which require plug-on breakers.
What does the VH suffix indicate in the QOB380VH catalog number?
The VH designates a higher interrupting rating of 22kA at 120/240VAC. Standard QOB breakers without the VH suffix have a 10kA interrupting rating.
How many panel spaces does the QOB380VH require?
This 3-pole breaker requires three standard 3/4-inch spaces, taking up a total of 2.25 inches of space in the panelboard.
What is the recommended torque specification for the box lugs on this breaker?
The wire binding screws on the QOB380VH should be torqued to 50 lb-in (5.6 N-m) for both copper and aluminum wire.
Can the QOB380VH be used in a 480V or 277V system?
No, this breaker is rated for a maximum of 240VAC. It is not suitable for 480V or 277V applications.
Does this breaker provide GFCI or equipment protection?
No, the QOB380VH is a standard thermal-magnetic breaker providing long-time and instantaneous trip functions. It does not include ground fault or equipment protection features.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 205 reviews.
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Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 3/11/26
Customers say these electrical breakers arrive exactly as ordered and work perfectly for their intended applications. They consistently praise the competitive pricing, which many report is significantly lower than local suppliers. Fast shipping and prompt delivery are frequently highlighted, with many receiving orders within days or even next-day delivery for urgent needs. The breakers arrive well-packaged and in excellent condition. Many reviews emphasize the company's extensive inventory availability, particularly for hard-to-find breakers. One customer experienced difficulty with order cancellation and was charged a restocking fee, which caused dissatisfaction.