600 Volts. Copper Conductor. Thermoplastic Insulation/Nylon Sheath, Heat, Moisture, Gasoline and Oil Resistant II. Rated THHN and THWN. Also rated AWM.
Application
THHN copper conductors are primarily used in conduit and cable trays for services, feeders and branch circuits in commercial or industrial applications as specified in the National Electrical Code. Voltage for all applications is 600 volts.
Standards & References
Southwire® THHN copper conductors comply with the following:
Construction
Southwire® THHN copper conductors are made with soft drawn copper. Combination-unilay stranding . The wire is covered with a tough heat and moisture resistant PVC insulation with an overall nylon jacket. Marked as THWN.