Stranded, uncoated copper conductors per ASTM-B3, ASTM-B787 and ASTM-B8
Color-coded Polyvinyl Chloride (PVC), heat and moisture-resistant, flame-retardant compound per UL-1063 and UL-83
Type THHN/THWN-2 building wire is intended for general purpose applications as defined by the National Electrical Code (NEC), Type THHN/THWN-2 is permitted for new construction or rewiring for 600-volt applications.
Applications requiring Type THHN or THWN-2: the conductor is appropriate for use in wet or dry locations at temperatures not to exceed 90 C or not to exceed 75 C in oil or coolants.
Applications requiring Type MTW: the conductor is appropriate for use in dry locations at 90 C, or not to exceed 60 C in wet locations or where exposed to oils or coolants,
Applications requiring Type AWM: the conductor is appropriate for use at temperatures to not exceed 105 C in dry locations.
A tough, polyamide, Nylon outer covering per UL-1063 and UL-83.