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View Full Version : Which conductor insulation has a higher thermal rating THHN or EPDM

Mikeragan
Dec 2, 2010, 07:42 AM
Unknown008
Dec 2, 2010, 10:32 AM
I would say THHN is the better insulator, since this is a thermoplastic, it is made to withstand heat, while EPDM rubber can work up to about 100 C.