SPEC: 60280

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

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

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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(E)
- 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.
- Anti-short bushings are not required for use with MC cable per NEC and UL

Southwire Armorlite® 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

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
1 AWG 1 AWG
3 3
BN,OE,YW BN,OE,YW
0.322 0.82
19 19
60 1.52
1x6 GG 1x6 GG
1.270 3.23
1141 1698
More Options
1 AWG 1 AWG
4 4
BN,OE,YW,GY BN,OE,YW,GY
0.322 0.82
19 19
60 1.52
1x6 GG 1x6 GG
1.331 3.38
1482 2205
More Options
1/0 AWG 1/0 AWG
3 3
BN,OE,YW BN,OE,YW
0.361 0.92
19 19
60 1.52
1x6 GG 1x6 GG
1.241 3.15
1360 2024
More Options
4/0 AWG 4/0 AWG
4 4
BN,OE,YW,GY BN,OE,YW,GY
0.512 1.30
19 19
60 1.52
1x3 GG 1x3 GG
1.883 4.78
3413 5079
More Options
250 KCMIL 250 KCMIL
4 4
PE,TN,PK,GY PE,TN,PK,GY
0.558 1.42
37 37
70 1.78
1x4 GG 1x4 GG
2.029 5.15
3919 5832
More Options
500 KCMIL 500 KCMIL
3 3
BN,OE,YW BN,OE,YW
0.789 2.00
37 37
70 1.78
1x4/0 GG 1x4/0 GG
2.343 5.95
6043 8993
More Options
600 KCMIL 600 KCMIL
4 4
BN,OE,YW,GY BN,OE,YW,GY
0.865 2.20
61 61
80 2.03
1x2 GG 1x2 GG
2.664 6.77
8643 12862

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
1 AWG 1 AWG
3 3
8.9 22.61
2008 910.81
0.128 0.19
0.154 0.23
0.046 0.07
130 130
145 145
More Options
1 AWG 1 AWG
4 4
9.3 23.62
2142 971.59
0.128 0.19
0.154 0.23
0.046 0.07
104 104
116 116
More Options
1/0 AWG 1/0 AWG
3 3
8.7 22.10
2534 1149.40
0.102 0.15
0.122 0.18
0.044 0.07
150 150
170 170
More Options
4/0 AWG 4/0 AWG
4 4
9.6 24.38
5417 2457.11
0.102 0.15
0.122 0.18
0.044 0.07
184 184
208 208
More Options
250 KCMIL 250 KCMIL
4 4
14.2 36.07
6400 2902.99
0.043 0.06
0.053 0.08
0.041 0.06
204 204
232 232
More Options
500 KCMIL 500 KCMIL
3 3
16.4 41.66
12000 5443.10
0.022 0.03
0.029 0.04
0.039 0.06
380 380
430 430
More Options
600 KCMIL 600 KCMIL
4 4
18.6 47.24
15360 6967.17
0.018 0.03
0.025 0.04
0.039 0.06
336 336
380 380

* Ampacities based upon 2023 NEC Table 310.16. See NEC sections 310.15 and 110.14(C) for additional requirements.
* Ampacities have been adjusted for more than Three Current-Carrying Conductors.

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:Aluminum Interlocked Armor

Resources

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