Products > Industrial Products > Power & Control / Buy America(n) Compliant > SPEC10003
...United States
SPEC 10003

Copper Silicone-Free THHN/THWN

600 Volts. Copper Conductor. Thermoplastic Insulation/Nylon Sheath, Heat, Moisture, Gasoline and Oil Resistant II. Rated THHN/THWN MTW and AWM. Silicone-Free

...
Download PDF Download Excel Table
CableTech......

Construction:

  1. Conductor:Solid sizes #14 AWG - #10 AWG use soft drawn bare copper per ASTM B3. Stranded sizes #14 AWG - 4/0 AWG use a combination-unilay stranded soft drawn bare copper per ASTM B787.
  2. Insulation:Heat and moisture resistant PVC insulation in various colors
  3. Sheath:Nylon

Applications and Features:

APPLICATION
Southwire® THHN® copper conductors are primarily used in condui for branch circuits in commercial or industrial applications as specified in the National Electrical Code. 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 90°C
  • THWN- Wet locations not to exceed 75°C or dry locations not to exceed 90°C or locations not to exceed 75°C when exposed to oil
  • TWN75- Wet locations not to exceed 75°C
  • MTW- Wet locations or when exposed to oil at temperatures not to exceed 60°C or dry locations not to exceed 90°C (with ampacity limited to that for 75°C conductor temperature per NFPA 79)
  • AWM- Dry locations not to exceed 105°C only when rated and used as appliance wiring material

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

    • Specifications:

  • ASTM B3 Standard Specification for Soft or Annealed Copper Wire
  • ASTM B787 19 Wire Combination Unilay-Stranded Copper Conductors
  • UL 83 Thermoplastic Insulated Wires and Cables
  • UL 2556 Standard for Safety Wire and Cable Test Methods
  • ICEA S-95-658 (NEMA WC70) Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy

    • Sample Print Legend:

    XX AWG CU MTW and THWN and THHN 90C and AWM 600 VOLTS 105C, .XXX PVC, .XXX NYLON; FOR USE AS INTERNAL WIRING
    Table 1 – Weights and Measurements
    Stock NumberCond. SizeStrand CountDiameter Over ConductorInsul. ThicknessJacket ThicknessApprox. ODApprox. Weight
    AWG/KcmilNo. of Strandsinchmilmilinchlb/1000ft
    115790◊14Solid0.0641650.10616
    115873◊12Solid0.0801650.12323
    115956◊10Solid0.1022150.15237
    229559◊14190.0731650.11318
    229641◊12190.0911650.13225
    229732◊10190.1172150.16539
    All dimensions are nominal and subject to normal manufacturing tolerances
    ◊ Cable marked with this symbol is a standard stock item
    Table 2 – Electrical and Engineering Data
    Stock NumberCond. SizeMin Bending RadiusDC Resistance @ 25°CAC Resistance @ 90°CInductive Reactance @ 60HzAllowable Ampacity At 60°C†Allowable Ampacity At 75°C†Allowable Ampacity At 90°C†
    AWG/KcmilinchΩ/1000ftΩ/1000ftΩ/1000ftAmpAmpAmp
    115790◊140.42.583.170.058152025
    115873◊120.41.632.000.054202530
    115956◊100.61.021.250.050303540
    229559◊140.42.583.170.058152025
    229641◊120.51.632.000.054202530
    229732◊100.61.021.250.050303540
    † Ampacities based upon 2023 NEC Table 310.16 and do not take into account the overcurrent protection limitations in NEC 240.4(D) of 15 Amps for 14 AWG CU, 20 Amps for 12 AWG CU, and 30 Amps for 10 AWG CU (independent of the conductor temperature rating and stranding). Also, see NEC sections 310.15 and 110.14(C) for additional requirements.

    Table 3 - Stock Code Colors and Standard Package

    SizePackageBlackRedBlueWhiteBrownOrangeYellowGrayGreenRed/BlackBlue/White
    BlackRedBlueWhiteBrownOrangeYellowGrayGreenRed/BlackBlue/White
    14 (Solid)Reel: 2500' Spool: 500'115790115816115824115808115865115857115840214668115832
    12 (Solid)Reel: 2500' Spool: 500'115873115899115907115881115949115931115923228700115915
    10 (Solid)Reel: 2500' Spool: 500'115956115972115980115964116020116012116004229823115998
    14 (19)Reel: 2500' Spool: 500'229559229575229583229567229625229609229609229633229591662817
    12 (19)Reel: 2500' Spool: 500'229641229666229674229658229716229708229690229724229682662981
    10 (19)Reel: 2500' Spool: 500'229732229757229765229740229807229799229781229815229773

    Table 3 - Stock Code Colors and Standard Package (Cont)

    SizeStandard PackagePurpleTanPinkWhite/BlackWhite/BlueWhite/RedGreen/YellowGray/BrownGray/OrangeGray/YellowGray/Purple
    PurpleTanPinkWhite/BlackWhite/BlueWhite/RedGreen/YellowGray/BrownGray/OrangeGray/YellowGray/Purple
    14 (Solid)Reel: 2500' Spool: 500'211243302539255331
    12 (Solid)Reel: 2500' Spool: 500'580202320127256479565284611410565285580212580226580208580210580201
    10 (Solid)Reel: 2500' Spool: 500'253336258384551545551547551546611757575300575301575302
    14 (19)Reel: 2500' Spool: 500'239566320150244863
    12 (19)Reel: 2500' Spool: 500'232124242503320168311514566441566440663013575307575309575310
    10 (19)Reel: 2500' Spool: 500'256594260539320176610028556199556198663112575297575298575299

    Revision: 3.0.00C