Conductor:
Annealed copper,solid or stranded sizes 14 AWG up to 1000 MCM

Insulation:
Premium grade flame retardant
Polyvinyl Choride

Jacket:
Tough polyamide(nylon)
Standards/Testing

Specification:
THHN/THWN-2 conforms to following

standards:
-UL83 for Thermopalstic Insulated Wires and Cables(THHN/THWN-2)
-UL758 for appliance  Wiring  Materials(AWM).
-UL1063 for Machine Tool Wire(MTW)(standed conductors only)