Southwire type THHN or THWN-2 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 Electric Code
When used as a type THHN conductor it is suitable for use in dry locations that are not to exceed temperatures of 90ºC
THHN copper conductors are annealed (soft) copper
Jacket is heat, moisture, gasoline and oil resistant
Voltage for all applications is 600 volts