Woods 22964151 50 ft. 12 Black Stranded THHN Wire Southwire?s THHN and THWN-2 is a multi-purpose building wire used in conduit and cable trays for service, feeders and branch circuits in commercial and industrial applications. It is also used as a conductor in NM-B, UF-B, SER, SEU and MC. Southwire?s THHN is rated for 600-Volt and has a heat capacity of up to 90?C. Features Can be used in wet or dry locations Made with annealed (soft) copper, compressed Insulation is high heat and moisture resistant polyvinyl chloride (PVC) USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.