SPEC 60210

Armorlite® Type MC THHN/THWN Intermediate Size Copper Conductor Neutral Per Phase

Copper THHN/THWN Insulated Singles. Dedicated Neutral Conductor for Each Phase Conductor. Green Insulated Copper Grounding Conductor. UL Listed 600 Volts. Rated VW-1. Lightweight Aluminum Interlocked Armor (AIA).



  1. Conductor:Combination unilay-stranded copper conductors per ASTM B787
  2. Insulation:All phases are insulated with Polyvinyl Chloride (PVC) with Nylon Sheath Type THHN/THWN
  3. Ground:Green insulated ground. Polyvinyl Chloride (PVC) with Nylon Sheath Type THHN/THWN
  4. Binder:Mylar tape
  5. Armor: Aluminum Interlocked Armor (AIA)

Contact Southwire SPEED™ Services to request a quote.

Applications and Features:

Southwire Armorlite® Type MC Cable Neutral-per-phase is suitable for use as follow:
  • Southwire Armorlite® Type MC Cable Neutral-per-phase products comply with NEC 200.4 requirements (added in the 2011 NEC) for the installation and marking of neutral conductors. Neutrals are not to be used for more than one circuit (branch, multiwire branch, or ungrounded feeder). See NEC 200.4 for complete requirements.
  • Applications affected by harmonics generated from non-linear switching loads, such as computers, variable frequency drives, electrical test equipment, and office equipment.
  • Multiple circuits for 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 Article 645
  • 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 Armorlite® Type MC Cable Neutral-per-phase 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 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:

    Table 1 – Weights and Measurements
    Stock NumberCond. SizeConductor NumberDiameter Over ConductorConductor StrandingInsulation ThicknessGround SizeNum x Neutral SizeDiameter Over ArmorCopper WeightOverall Weight
    AWG/KcmilinchmilsNo. x AWGNo. x AWGinchlbs/1000ftlbs/1000ft
    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 RadiusMax Pull TensionDC Resistance at 25°CAC Resistance at 75°CInductive Reactance @ 60HzAllowable Ampacity Raceway 75°CAllowable Ampacity Raceway 90°C
    * 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.

    Color Table

    Stock Num.Cond. SizeCond. Num.123456789

    Revision: 1.000.005

    Updated On: July 3, 2024, 10:13 p.m. UTC