Southwire THHN 10 AWG White 100 ft Conduit

10 AWG THHN Building Wire

This stranded 10 AWG THHN wire comes on a 100 ft spool with white PVC insulation and a nylon jacket. It is rated for 600 V AC and suits residential or light commercial branch circuits. The 19-strand conductor makes pulling through conduit easier than solid alternatives. Electricians and DIYers running new circuits will find the length practical for typical runs.

600 V rating and conduit use

The 600 V AC rating covers most single-phase and three-phase circuits up to that voltage. THHN insulation is approved for dry and damp locations inside raceway or conduit. The nominal outside diameter of 0.16 in helps calculate conduit fill but the wire is not rated for direct burial or wet locations without additional protection. Installers must follow local code for ampacity and derating.

Spool handling and common issues

The spool packaging keeps the wire tangle-free during long pulls. Stranded construction reduces spring-back when feeding through bends. A frequent mistake is exceeding conduit fill limits because the nylon jacket adds to the overall diameter. Another issue arises when the white jacket is used for a hot conductor without proper re-identification tape at terminations.