Wire - Insulation Type THHN

General Purpose Applications

Type THHN building wire is intended for general purpose applications as defined by the National Electrical Code (NEC). It is appropriate for new construction or rewiring for 600 volt applications. When used as type THHN, the conductor is suitable for use in wet or dry locations at temperatures not to exceed 90°C or not to exceed 75°C in oil or coolants. When used as type MTW, the conductor is suitable for use in dry locations at 90°C, or not to exceed 60°C in wet locations or where exposed to oils or coolants.

• Sizes - 4, 6, 8, 10, 12, 14 AWG
• Spool / Reel Length - 500 ft. & 2,500 ft.
• Conductors - stranded, uncoated copper conductors per ASTM-B3, ASTM-B787 and ASTM-B8
• Insulation - Color-coded, Polyvinyl Chloride (PVC) heatand moisture-resistant, flame-retardant compound per UL 1063 and UL 83
• Jacket -
  • THHN: tough, polyamide, Nylon outer covering per UL 1063 and UL 83
  • Slick Nylon outer jacket for easy pulling
• THHN Colors - 500 ft.:
  • 14 AWG - Black, White, Red, Blue, Green, Yellow, Orange, Brown, Purple, Gray, Blue/White, Green/Yellow
  • 12 AWG - Black, White, Red, Blue, Green, Yellow, Orange, Brown, Gray, Green/Yellow
  • 10 AWG - Black, White, Green, Yellow, Orange, Brown, Green/Yellow
  • 8 AWG - Black, Green, Green/Yellow
  • 6 AWG - Black
  • 4 AWG - Black
• THHN Colors - 2,500 ft.:
  • 14 AWG - Black, White, Red, Blue, Green, Yellow, Orange, Brown, Purple, Blue/White
  • 12 AWG - Black, White, Red, Blue, Green, Yellow, Orange, Brown
• Standards and Agency Approvals
  • UL Standard UL 83, UL 1063, UL 758, cUL file: E156879 and E123744
  • AWM Spec 1316, 1317, 1318, 1319, 1320, 1321
  • ASTM Stranding Class B3, B8, B787
  • Federal Specification A-A-59544
  • CSA C22.2 No. 75, UL E156879 and E123744
  • NEMA WC70/ICEA S-95-658