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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Application & 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

Select a set of products below for more information:

	Cond. Size	Conductor Number	Color	Diameter Over Conductor (in) (cm)	Cond. Strands	Insulation Thickness (mils) (mm)	Ground Size	Diameter Over Armor (in) (cm)	Approx. Weight (lbs/1000') (kgs/km)
More Options	10 AWG 10 AWG	8 8	See Table See Table	0.113 0.29	19 19	25 0.64	2x10 2x10	0.880 2.24	651 969

Note: Conductor number = number of phase conductors plus neutrals. Does not include green and green/yellow ground.
TBA stock codes are estimations only and actual product may vary. Please wait until a stock code is assigned to purchase connectors and/or fittings.

	Cond. Size	Conductor Number	Min. Bend Radius (in) (cm)	DC Resistance at 25C (ohms/1000') (ohms/km)	AC Resistance at 75C (ohms/1000') (ohms/km)	Inductive Reactance (ohms/1000') (ohms/km)	Allowable Ampacity Raceway 75C	Allowable Ampacity Raceway 90C
More Options	10 AWG 10 AWG	8 8	6.2 15.75	1.040 1.55	1.253 1.86	0.050 0.07	24 24	28 28

* 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.

Size (Strand)	Cond. Number	Stock Code	Color
10 (19) 10 (19)	8 8	557781	BK, RD, BE, BK/WE, WE, WE/RD, WE/BE, WE/BK, GN, GN/YW BK, RD, BE, BK/WE, WE, WE/RD, WE/BE, WE/BK, GN, GN/YW

Standards & References

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.

Construction

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

Resources

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