THHN wire has a thin flame-resistant PVC insulation that is covered by an abrasion-resistant nylon jacket.
THHN wires are suitable for applications up to 90ºC in dry locations and 75ºC in wet conditions.
Although THHN wire can perform in high-temperature environments you must correct the wire's ampacity at high ambient temperatures and when bundling cables together in a raceway or conduit.
Contact Allied Wire & Cable to learn more or request a quote.
THHN wire has a thin flame-resistant PVC insulation that is covered by an abrasion-resistant nylon jacket. THHN wires are suitable for applications up to 90ºC in dry locations and 75ºC in wet conditions. Although THHN wire can perform in high-temperature environments, you must correct the wire's ampacity at high ambient temperatures and when bundling cables together in a raceway or conduit.
The maximum voltage rating of the THHN cable is 600 volts. All THHN cables meet the UL 83 standard for safety thermoplastic-insulated wires and cables, as well as the UL 1063 standard for safety machine-tool wires and cables. You can request Canadian Standards Association (CSA) approval if desired, and certain THHN cables also meet the European Restriction of Hazardous Substances (RoHS) Directive for hazardous material compliance.
Contact Allied Wire & Cable to learn more or request a quote.
The THHN Cables are designed with the Oil, Gas and Petrochemical industry in mind. THHN 600V cables have an insulation layer of Nylon and Flame Retardant Polyvinyl Chloride. THHN referencing the Nylon coating referring to the 90oC PVC used. Both the screened and unscreened cables have a black PVC outer sheath.
The THHN cable is classified as suitable for Class 1 Division 2 Hazardous Areas and offers protection from both aliphatic and aromatic hydrocarbons. Depending on the installation environment, there are screened and unscreened variants, the former being an aluminium tape with tinned copper drain wire.
Available in multicore configurations up to 50 cores and in sizes AWG10, AWG12 and AWG14, the THHN cables are suitable for installation in tray, wire ways, cable ducts, conduits and even as aerial cables when supported by messenger wires. The cables are approved for direct burial where no risk of mechanical damage, and can be installed externally as the Special PVC sheathing offers UV resistance. They can be used in both wet and dry locations but are not suitable for immersion or submersion.
Support with specification and additional electrical characteristics are available on request. Please speak to one of our industry experts for more information.