Construction

• Conductor: Solid sizes #14 AWG – #10 AWG use soft drawn bare copper per ASTM B3. Stranded sizes #14 AWG – #10 AWG use a combination-unilay stranded soft drawn bare copper per ASTM B787.
• Insulation: Heat and moisture resistant PVC
• Sheath: Nylon

Standards & References

• ASTM B3 Soft or Annealed Copper Wire
• ASTM B787 19 Wire Combination Unilay-Stranded Copper Conductors
• UL 83 Thermoplastic Insulated Wires and Cables
• UL 758 Standard for Appliance Wiring Material
• UL 1063 Machine Tool Wiring (MTW)
• CSA C22.2 No. 75 Thermoplastic Insulated Wires and Cables
• ICEA S-95-658 (NEMA WC70) Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy
• Federal Specification A-A-59544
• NMX-J-010-ANCE Thermoplastic insulated wires and cables
• NOM-063-SCFI Electrical Products Conductors Safety Requirements

Application & Features

APPLICATION

Southwire THHN copper conductors are primarily used in conduit for branch circuits in commercial or industrial applications as specified in the National Electrical Code and other applicable codes and standards. Voltage for all applications is 600 volts. These conductors have multiple ratings depending upon the product application.

Allowable temperatures are as follows:

• THHN or T90 Nylon- Dry locations not to exceed 90C
• THWN- Wet locations not to exceed 75C or dry locations not to exceed 90C or locations not to exceed 75C when exposed to oil
• TWN75- Wet locations not to exceed 75C
• MTW- Wet locations or when exposed to oil at temperatures not to exceed 60C or dry locations not to exceed 90C (with ampacity limited to that for 75C conductor temperature per NFPA 79)
• AWM- Dry locations not to exceed 105C only when rated and used as appliance wiring material
  

FEATURES

• Gasoline and Oil Resistant II
• VW-1 Sizes 14 through 10 AWG
• FT1 All SizesAWM- Sizes 14 through 10 AWG
• MTW- Stranded Constructions Only
• RoHS Compliant