carlon zip box

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electricalperson said:
what does the W-C mean under the UL logo

it says 2-hr-w-c

the box has a 2 hour fire rating according to carlons faq but i dont know what those 2 letters mean
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I believe that the "W" means the box is good for a 2 hr wall and the "C" means that it is good for a 2 hr ceiling.

Chris
 
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