Hi all, I am curious what the difference between THWN and THWN-2 are? My googling skills seems to be failing me as I cant find an answer to this question.
Home Depot sells THHN that says THWN-2 on the jacket, Lowes sells the same brand same looking THHN that says THWN on the jacket. Both are rated to withstand oils/gasoline and are rated up to 90 degrees C.
I know that -2 means its dual rated for wet and hot locations. But based on the jacket and the name "W" means wet, and temperature rating is the same between the two at 90C. So whats the difference then?
Home Depot sells THHN that says THWN-2 on the jacket, Lowes sells the same brand same looking THHN that says THWN on the jacket. Both are rated to withstand oils/gasoline and are rated up to 90 degrees C.
I know that -2 means its dual rated for wet and hot locations. But based on the jacket and the name "W" means wet, and temperature rating is the same between the two at 90C. So whats the difference then?
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