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.

Download Category Specifications
PDF Excel Table

Application & 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

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
3/0 AWG 3/0 AWG
3 3
BN,OE,YW BN,OE,YW
0.456 1.16
19 19
50 1.27
1x4 GG 1x4 GG
1.506 3.83
2369 3525
More Options
4/0 AWG 4/0 AWG
3 3
BN,OE,YW BN,OE,YW
0.512 1.30
19 19
60 1.52
1x4 GG 1x4 GG
1.543 3.92
2908 4328
More Options
400 KCMIL 400 KCMIL
3 3
BN,OE,YW BN,OE,YW
0.705 1.79
37 37
60 1.52
1x1/0 GG 1x1/0 GG
2.168 5.51
5054 7521
More Options
600 KCMIL 600 KCMIL
3 3
BN,OE,YW BN,OE,YW
0.865 2.20
61 61
80 2.03
1x1/0 GG 1x1/0 GG
2.395 6.08
7285 10841

Note: Conductor number = number of phase conductors. Does not include ground
Note: GG = Green insulated 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) Max Pull Tension (lbs) (kg) 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
3/0 AWG 3/0 AWG
3 3
10.5 26.67
4027 1826.61
0.064 0.10
0.078 0.12
0.042 0.06
200 200
225 225
More Options
4/0 AWG 4/0 AWG
3 3
10.8 27.43
5078 2303.34
0.051 0.08
0.062 0.09
0.041 0.06
230 230
260 260
More Options
400 KCMIL 400 KCMIL
3 3
15.2 38.61
9600 4354.48
0.027 0.04
0.035 0.05
0.040 0.06
335 335
380 380
More Options
600 KCMIL 600 KCMIL
3 3
16.8 42.67
14400 6531.72
0.018 0.03
0.025 0.04
0.039 0.06
420 420
475 475

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

Standards & References

  • 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.

Construction

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

Resources

There are no downloadable resources for this product.