SPEC 45260

FLEXTOR™ CU 600V PVC-Nylon Insulation PVC Jacket. THHN/THWN-2

Type TC-ER Power Cable Flexible 600Volt Four Conductor Copper, Polyvinyl Chloride (PVC) with nylon layer insulation THHN Polyvinyl Chloride (PVC) Jacket with 1 Green Insulated CU Ground



  1. Conductor:Class C compressed stranded bare copper per ASTM B3 and ASTM B8
  2. Insulation:Polyvinyl Chloride (PVC) with nylon layer Type THHN/THWN. Colors: Gray, Brown, Orange, Yellow.
  3. Grounding Conductor:Green insulated THHN Class C compressed stranded bare copper per ASTM B3 and ASTM B8
  4. Filler:Paper filler (cable size 8 & 6 uses Polypropylene filler)
  5. Binder:Polyester flat thread binder tape for cable sizes larger than 2 AWG
  6. Overall Jacket:Polyvinyl Chloride (PVC) Jacket

Applications and Features:

Southwire’s 600 Volt Type TC-ER flexible power cables are made with class C copper stranding for extra flexibilty suited for use in wet and dry areas, conduits, ducts, troughs, trays, direct burial, aerial supported by a messenger, and where superior electrical properties are desired. These cables are capable of operating continuously at the conductor temperature not in excess of 75°C in wet locations and 90°C in dry locations, 105°C for emergency overload, and 250°C for short circuit conditions. For uses in Class I, II, and III, Division 2 hazardous locations per NEC Article 501 and 502. Constructions with 3 or more conductors are listed for exposed runs (TC-ER) per NEC 336.10.


  • ASTM B3 Soft or Annealed Copper Wire
  • ASTM B8 Concentric-Lay-Stranded Copper Conductors
  • UL 83 Thermoplastic Insulated Wires and Cables
  • UL 1277 Electrical Power and Control Tray Cables
  • UL 1685 FT4 Vertical-Tray Fire Propagation and Smoke Release Test
  • ICEA S-93-639 (NEMA WC 74) 5-46 KV Shielded Power Cable
  • ICEA S-95-658 (NEMA WC70) Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy
  • IEEE 1202 FT4 Vertical Tray Flame Test (70,000 Btu/hr) and ICEA T-29-520 - (210,000 Btu/hr)
  • Table 1 – Weights and Measurements
    Stock NumberCond. SizeCond. NumberStrand CountDiameter Over ConductorInsul. ThicknessGroundJacket ThicknessApprox. ODCopper WeightApprox. Weight
    AWG/KcmilNo. of StrandsinchmilNo. x AWGmilinchlb/1000ftlb/1000ft
    TBA84190.143351 x 10600.647237346
    TBA64190.179351 x 8600.734378506
    TBA44190.226501 x 8800.960571800
    64369724190.286401 x 6801.1589091243
    TBA14370.333601 x 6801.26811231464
    TBA1/04370.373601 x 6801.36513951768
    TBA2/04370.420601 x 6801.47817392148
    TBA3/04370.471601 x 4801.60222212669
    TBA4/04370.529601 x 41101.80227653364
    TBA2504610.575701 x 41101.96232453942
    TBA3504610.681701 x 31102.21845265328
    TBA5004610.814701 x 21102.54064377370
    TBA7504910.998801 x 11403.094960710988
    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. SizeCond. NumberMin Bending RadiusMax Pull TensionDC Resistance @ 25°CAC Resistance @ 75°CInductive Reactance @ 60HzAllowable Ampacity At 60°CAllowable Ampacity At 75°CAllowable Ampacity At 90°C
    * Ampacities based upon 2023 NEC Table 310.16. See NEC sections 310.15 and 110.14(C) for additional requirements.
    * Ampacities have been adjusted for more than Three Current-Carrying Conductors.

    Revision: 1.000.001

    Updated On: Aug. 18, 2023, 2:40 p.m. UTC