SPEC 10004

Copper TFN/TFFN

600 Volt. Copper Conductor. PVC Insulation/Nylon Sheath. Heat, Moisture, Oil, and Gasoline Resistant II. Also Rated MTW and AWM.

...

Construction:

  1. Conductor: Solid soft drawn bare copper per ASTM B3 for TFN. Class K bunch-stranded soft drawn bare copper per ASTM B174 for TFFN.
  2. Insulation: Heat and moisture resistant PVC
  3. Sheath:Nylon

Applications and Features:

APPLICATION
Southwire® Type TFN/TFFN or MTW or AWM may be used as fixture wire, machine tool wiring, or appliance wiring material as specified in the National Electrical Code® and other applicable codes and standards. Voltage for all applications is 600 volts. Allowable temperatures are as follows:

  • TFN/TFFN- Dry locations not to exceed 90°C
  • AWM - When rated as appliance wiring material in dry locations, conductor temperatures not to exceed 105°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)


  • FEATURES
  • Gasoline and Oil Resistant II
  • MTW - Stranded Constructions Only
  • RoHS Compliant
  • Specifications:

  • ASTM B3 Soft or Annealed Copper Wire
  • ASTM B174 Standard Specification for Bunch-Stranded Copper
  • UL 66 Fixture Wire
  • UL 758 Standard for Appliance Wiring Material
  • UL 1063 Machine Tool Wiring (MTW)
  • Sample Print Legend:

    E30071 (UL) XX AWG CU TYPE TFFN OR MTW OR GASOLINE AND OIL RESISTANT II OR AWM 600 VOLTS --- RoHS
    Table 1 – Weights and Measurements
    Stock NumberCond. SizeStrand CountInsul. ThicknessJacket ThicknessApprox. ODCopper WeightApprox. Weight
    AWG/KcmilNo. of Strandsmilmilinchlb/1000ftlb/1000ft
    26977918Solid1550.08046
    26988616Solid1550.090710
    27021518161550.08547
    27032216261550.101710
    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 @ 75°CAllowable Ampacity At 90°C
    AWG/KcmilinchΩ/1000ftΩ/1000ftAmp
    269779180.46.6698.0356
    269886160.44.1815.0378
    270215180.46.6698.0356
    270322160.44.1815.0378
    † 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 if size is present in table). Also, see NEC sections 310.15 and 110.14(C) for additional requirements.
    † Ampacities have been adjusted for more than Three Current-Carrying Conductors.
    * Inductive impedance is based on non-ferrous conduit with one diameter spacing.

    Table 3 - Stock Code Colors and Standard Package

    Size (Strands)BlackRedBlueWhiteBrownOrangeYellowGrayPinkPurple
    BlackRedBlueWhiteBrownOrangeYellowGrayPinkPurple
    18 (1)269779269795269803269787269845269837269829269878269860
    16 (1)269886269902269910269894269951269944269936269985269977
    18 (16)270215270231270249270223270280270272270264270314270298270306
    16 (26)270322270348270355270330270397270389270371270421270405270413

    Size (Strands)TanGreenBlue/White
    TanGreenBlue/White
    18 (1)269811
    16 (1)269928
    18 (16)297549270256
    16 (26)297531270363567169

    Revision: 1.000.002

    Updated On: March 21, 2024, 12:20 p.m. UTC