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Ideally, the listing of the lug would have that info but I don't recall ever seeing a main lug on a panel that was listed for more than one conductor except for the kind that has that little setscrew lug on the side of it to accommodate taps.

I wish I had a photo.


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I feel like this may be a dumb question, but double taps are never allowed on main lugs are they ? even for surge protectors ?

They're allowed on some lugs, but usually with conductors of similar or close-to-similar sizes. (Is "close-to-similar" redundant? )

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  • 3 months later...

Would this be considered "Close to Similar"? Three conductors and one significantly smaller than the other two.

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The allowable wires & size information is stamped somewhere on that lug - though someone might have to remove it to actually read the information.

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