Name: Duraclad®Type MC THHN/THWN Copper Conductor Feeder Cable 277/480 Colors
Brand: Southwire
Rating: 5 (1 reviews)

Products > Infrastructure Products > 600V MC > SPEC60270

SPEC 60270

Duraclad®Type MC THHN/THWN Copper Conductor Feeder Cable 277/480 Colors

Copper THHN/THWN-2 Insulated Singles. Green or Bare Copper Grounding Conductor. UL Listed 600 Volts. Rated VW-1. Lightweight Galvanized Steel Interlocked Armor.

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Construction:

Conductor:Class B compressed copper per ASTM B3 and ASTM B8
Insulation:All phases are insulated with Polyvinyl Chloride with Nylon Sheath Type THHN/THWN
Ground:Green insulated or bare stranded copper ground
Filler:Fillers as needed
Binder:Mylar tape
Armor:Galvanized Steel Interlocked Armor

Applications and Features:

Southwire Armorlite® Type MC Feeder Cable is suitable for use as follows:
- 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 Duralclad® Type MC Cable - 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

Color Code - 3/C: Brown, Orange, Yellow
- 4/C: Brown, Orange, Yellow, Gray

Specifications:

ASTM B3 Soft or Annealed Copper Wire

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

RoHS-2 (European Directive 2011/65/EU)

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:

E96627 {UL} TYPE MC AWG XX THHN OR THWN CDRS FOR USE IN CABLE TRAYS 600 VOLTS

Table 1 – Weights and Measurements

Stock Number	Cond. Size	Conductor Number	Color	Diameter Over Conductor	Conductor Stranding	Insulation Thickness	Ground Size	Diameter Over Armor	Copper Weight	Overall Weight
	AWG/Kcmil			inch		mils	No. x AWG	inch	lbs/1000ft	lbs/1000ft
678473	400	3	BN,OE,YW	0.705	37	60	1x1/0 GG	2.168	4071	5054

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. Does not include ground
Note: GG = Green insulated ground

Table 2 – Electrical and Engineering Data

Cond. Size	Conductor Number	Min. Bend Radius	Max Pull Tension	DC Resistance at 25°C	AC Resistance at 75°C	Inductive Reactance @ 60Hz	Allowable Ampacity Raceway 75°C	Allowable Ampacity Raceway 90°C
AWG/Kcmil		Inches	Lbs	Ω/1000ft	Ω/1000ft	Ω/1000ft	Amp	Amp
400	3	15.2	9600	0.027	0.035	0.04	335	380

* Ampacities based upon 2023 NEC Table 310.16. See NEC sections 310.15 and 110.14(C) for additional requirements.

Revision: 1.000.005

Updated On: Nov. 12, 2024, 11:22 p.m. UTC