SPEC 60214

Duraclad® Type MC THHN/THWN Circuit Size Copper Conductor Isolated Ground 120/208V Colors

Copper THHN/THWN Insulated Singles. Two Insulated Grounding Conductors. UL Listed 600 Volts Rated VW-1. Galvanized Steel Interlocking Armor.

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Construction:

  1. Conductor:Solid per ASTM B3 or Combination unilay-stranded copper conductors per ASTM B787
  2. Insulation:All phases are insulated with Polyvinyl Chloride with Nylon Sheath Type THHN/THWN
  3. Ground:Two insulated Green and Green/Yellow grounds. Polyvinyl Chloride with Nylon Sheath Type THHN/THWN
  4. Binder:Mylar tape
  5. Armor:Galvanized Steel Interlocking Armor.

Applications and Features:

Southwire Type MC Cable -Isolated Ground is suitable for use as follow:
  • Applications requiring redundant, dedicated or isolated grounding paths.
  • Branch, feeder and service power distribution in commercial, industrial, institutional, and multi- residential buildings.
  • Fished or embedded in plaster.
  • Concealed or exposed installations.
  • Environmental air-handling spaces per NEC 300.22 (C).
  • Places of Assembly per NEC 518.4 and theaters per NEC 520.5.
  • Installation in cable tray and approved raceways.
  • Under raised floors for information technology equipment conductors and cables per NEC 645.5(D) & 645.5(D)(2)
  • Class I Div. 2, Class II Div 2, & Class III Div. 1 Hazardous Locations.
  • Binder tape with print legend wrapped around assembly.
  • Type THHN/THWN rated 90ºC Dry.

  • Southwire Type MC Cable - Isolated Ground meets or exceeds the following requirements:
  • UL Online Product Guide Info - Metal-Clad Cable (PJAZ) ( www.ul.com )
  • Federal Specification A-A59544 (formerly J-C-30B)
  • NFPA 70 (National Electrical Code), Article 330
  • Listed for use in UL 1, 2 and 3 Hour Through Penetration Firestop Systems
  • Specifications:

  • ASTM B3 Soft or Annealed Copper Wire
  • ASTM B8 Concentric-Lay-Stranded Copper Conductors
  • ASTM B787 19 Wire Combination Unilay-Stranded Copper Conductors
  • UL 83 Thermoplastic Insulated Wires and Cables
  • UL 1569 Metal-Clad Cables
  • UL 1479 Standard for Safety Fire Tests of Penetration Firestops
  • UL 1685 FT4 Vertical-Tray Fire Propagation and Smoke Release Test
  • IEEE 1202 FT4 Flame Test (70,000) BTU/hr Vertical Tray Test
  • Buy American: Compliant with Buy American Requirements, found in 49 U.S.C. § 5323(j); specify “Made in the USA Only!” when ordering to ensure your project receives American made products.
  • Sample Print Legend:

    STEEL MC CABLE W/CU CDRS THHN-THWN MAXIMUM VOLTAGE 600V, FOR USE IN CABLE TRAY90(D)C - WET OR DRY LOCATIONS GASOLINE & OIL RESISTANT CDRS. (GREEN INSULATED GROUND)
    Table 1 – Weights and Measurements
    Stock NumberCond. SizeConductor NumberDiameter Over ConductorConductor StrandingInsulation ThicknessGround SizeDiameter Over ArmorCopper WeightOverall Weight
    AWG/KcmilinchmilsNo. x AWGinchlbs/1000ftlbs/1000ft
    10 AWG | 19 Strands
    5577811080.11319252x100.880321651
    All dimensions are nominal and subject to normal manufacturing tolerances
    ◊ Cable marked with this symbol is a standard stock item
    Note: Conductor number = number of phase conductors plus neutral. Does not include green ground.
    Table 2 – Electrical and Engineering Data
    Cond. SizeConductor NumberMin. Bend RadiusDC Resistance at 25°CAC Resistance at 75°CInductive Reactance @ 60HzAllowable Ampacity Raceway 75°CAllowable Ampacity Raceway 90°C
    AWG/KcmilInchesΩ/1000ftΩ/1000ftΩ/1000ftAmpAmp
    10 AWG | 19 Strands
    1086.21.0401.2530.0502428
    * 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.

    Table 3 - Color Code

    Stock
    Num.
    Cond.
    Size
    (AWG)
    Cond.
    Num.
    12345678910
    557781108BlackRedBlueWhiteBlack/WhiteWhite/BlackWhite/RedWhite/BlueGreen/YellowGreen

    Revision: 1.000.004

    Updated On: Feb. 2, 2024, 1:30 p.m. UTC