THHN / THWN-2 Building Wire

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THHN / THWN-2 Building Wire

THHN / THWN-2 Building Wire

THHN / THWN-2 is the workhorse of North American building wire: a bare annealed copper conductor, heat- and moisture-resistant PVC insulation and a tough nylon jacket, rated 600 V and 90 °C in dry locations.

Key features

  • Bare annealed copper conductor — solid from 14 AWG, stranded up to 750 kcmil
  • PVC insulation with a tough nylon jacket
  • Heat, moisture, oil and gasoline resistant
  • 600 V rated; 90 °C dry / 75 °C wet
  • Suitable for conduit, machine tools, control circuits and appliance wiring
  • Available in standard colours, supplied on 500 ft wooden spools

Application scope

  • Branch circuits and feeders in conduit
  • Machine tool and control panel wiring
  • Appliance and equipment connections
  • Commercial and industrial building wiring

Supply & support

Manufactured by our partner mill — a large-scale Chinese cable factory with more than 70 years of manufacturing history. Contact us for datasheets, third-party test reports and pricing.