SPEC 44066

Machine Flexible Power

90°C Wet/90°C Dry. 600 Volts. Flexible Stranded Copper Conductor. PVC Insulation and Nylon Jacket (THHN/THWN-2). Oil & Gasoline Resistant. Sunlight Resistant. Rated UL VW-1 and CSA FT1 & FT4 Flame Resistant.



  1. Conductor: 8 - 4/0 AWG: Class K, Flexible stranded bare copper. 250 - 750 KCMIL: Class I, Flexible stranded bare copper
  2. Insulation: Polyvinyl Chloride (PVC) with Nylon sheath

Applications and Features:

Southwire’s Machine Flexible Power cables are suited for use in wet and dry areas, conduits, ducts, troughs, trays, 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 90°C for normal operation in wet and dry locations, 130°C for emergency overload, and 250°C for short circuit conditions. 1/0 AWG & Larger rated for CT USE


  • ASTM B3 Standard Specification for Soft or Annealed Copper Wire
  • ASTM B172 Standard Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Copper Conductors
  • ASTM B174 Standard Specification for Bunch-Stranded Copper
  • UL 83 Thermoplastic Insulated Wires and Cables Type THHN
  • UL 758 Standard for Appliance Wiring Material Style 2463 (80C, 600V)
  • UL 1063 Machine Tool Wiring (MTW)
  • UL 1685 FT4 Vertical-Tray Fire Propagation and Smoke Release Test (1/0 and Larger)
  • ICEA S-95-658 (NEMA WC70) Power cables rated 2000 volts or less for the distribution of electrical energy
  • CE/RoHS-2 – The CE Marking has been applied solely to express the conformance to the material restrictions identified in the RoHS-2 (2011/65/EU) Directive
  • Sample Print Legend:

    8AWG-1AWG SOUTHWIRE #P# (UL) 1 AWG (42.406 mm2) CU TYPE THHN/THWN-2 600V 90(D)C DRY/90(D)C WET PRI/GRI VW-1 OR AWM [Applicable Styles] OR MTW SUN RES --- (CSA) T90 NYLON OR TWN75 FT1 FT4 --- CE RoHS-2 Made in USA. [SEQUENTIAL FOOTAGE MARKS] 1/0 AWG - 500 KCMIL SOUTHWIRE #P# (UL) 500 KCMIL (253.35mm2) CU TYPE THHN/THWN-2 600V 90(D)C DRY/90(D)C WET PRI/GRI VW-1 FOR CT USE OR AWM [Applicable Styles] OR MTW SUN RES --- (CSA) T90 NYLON OR TWN75 FT1 FT4 --- CE RoHS-2 Made in USA. [SEQUENTIAL FOOTAGE MARKS]
    Table 1 – Weights and Measurements
    Stock NumberCond. SizeCond. StrandsDiameter Over ConductorInsul. ThicknessApprox. ODApprox. Weight
    AWG/KcmilNo. of Strandsinchmilinchlb/1000ft

    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 RadiusMax Pull TensionDC ResistanceAC Resistance @ 90°CInductive ReactanceShort Circuit Current 6 CyclesAllowable Ampacity In Conduit At 60°CAllowable Ampacity In Conduit At 75°CAllowable Ampacity In Conduit At 90°C

    Stock Codes and Colors