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Painted bus right from the factory

Douglas Hansen

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Looked at an Eaton 200-amp Meter/Main panel today, and the bus is coated with a thin layer of paint. It is not the "silver flash-plating" that Eaton describes in their catalog or that I see on most panels. Everything else about it seemed to look like any other Eaton panel, including the UL listing.

Has anyone else seen something like this?


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Yes. I've seen it several times. I never thought it was paint but some kind of oxidation or anodization. When you slip a breaker on or off the bus bar, the spots where the breaker jaws grabbed the bar become shiny, but no particles fall away, as they would with paint. It doesn't seem to have any effect on the ability of the bus to make good electrical connections.

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