THHN / THWN-2 Building Wire
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.
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