SPEC 60450

Armorlite® Type MC THHN/THWN Circuit Size Copper Conductor Neutral Per Phase With Phase ID

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. Phase With Phase ID



  1. Conductor:19 strands class C compressed copper per ASTM B8
  2. Insulation:All phases are insulated with Polyvinyl Chloride with Nylon Sheath Type THHN/THWN
  3. Ground:Green insulated ground. Polyvinyl Chloride with Nylon Sheath Type THHN/THWN
  4. Binder:Mylar tape
  5. Armor:Aluminum Interlocked Armor

Contact Southwire SPEED™ Services to request a quote.

Applications and Features:

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.

Southwire Armorlite® Type MC Cable - Neutral per phase is suitable for use as follow:
  • 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 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 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 B8 Concentric-Lay-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
    Cond. SizeConductor NumberConductor StrandingInsulation ThicknessGround SizeNum x Neutral SizeDiameter Over ArmorCopper WeightOverall Weight
    AWG/KcmilmilsNo. x AWGNo. x AWGinchlbs/1000ftlbs/1000ft
    12 AWG | 19 Strands
    12419201 x 122 x 120.580100169
    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 and neutrals. Does not include the 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
    12 AWG | 19 Strands
    † 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.

    Color Table

    Cond. Num.Black 1Black 2Black 3Red 1Red 2Red 3Blue 1Blue 2Blue 3White/
    Black 1
    Black 2
    Black 3
    Red 1
    Red 2
    Red 3
    Blue 1
    Blue 2
    Blue 3
    Black 1Black 2Black 3Red 1Red 2Red 3Blue 1Blue 2Blue 3White/Black 1White/Black 2White/Black 3White/Red 1White/Red 2White/Red 3White/Blue 1White/Blue 2White/Blue 3Green

    Revision: 1.000.003

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