SPEC: 60127

Armorlite® Type MC THHN/THWN Circuit Size Copper Conductor 277/480V Colors

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

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Application & Features

Southwire Armorlite® Type MC Cable is suitable for use as follows:
- 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 Article 645
- 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 bushing not required

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	14 AWG 14 AWG	4 4	BN,OE,YW,GY BN,OE,YW,GY	0.064 0.16	Solid Solid	20 0.51	1x14 1x14	0.508 1.29	116 173
More Options	12 AWG 12 AWG	2 2	YW,GY YW,GY	0.080 0.20	Solid Solid	20 0.51	1x12 1x12	0.483 1.23	105 156
More Options	12 AWG 12 AWG	2 2	YW,GY YW,GY	0.090 0.23	19 19	20 0.51	1x12 1x12	0.504 1.28	110 164
More Options	12 AWG 12 AWG	3 3	BN,OE,YW BN,OE,YW	0.080 0.20	Solid Solid	20 0.51	1x12 1x12	0.514 1.31	132 196
More Options	12 AWG 12 AWG	3 3	BN,OE,GY BN,OE,GY	0.090 0.23	19 19	20 0.51	1x12 1x12	0.538 1.37	138 205
More Options	12 AWG 12 AWG	4 4	BN,OE,YW,GY BN,OE,YW,GY	0.080 0.20	Solid Solid	20 0.51	1x12 1x12	0.549 1.39	159 237
More Options	10 AWG 10 AWG	2 2	BN,GY BN,GY	0.101 0.26	Solid Solid	25 0.64	1x10 1x10	0.550 1.40	151 225
More Options	10 AWG 10 AWG	2 2	BN,GY BN,GY	0.117 0.30	19 19	25 0.64	1x10 1x10	0.583 1.48	163 243
More Options	10 AWG 10 AWG	3 3	BN,OE,YW BN,OE,YW	0.101 0.26	Solid Solid	25 0.64	1x10 1x10	0.589 1.50	192 286
More Options	10 AWG 10 AWG	3 3	BN,OE,GY BN,OE,GY	0.117 0.30	19 19	25 0.64	1x10 1x10	0.626 1.59	206 307
More Options	10 AWG 10 AWG	4 4	BN,OE,YW,GY BN,OE,YW,GY	0.101 0.26	Solid Solid	25 0.64	1x10 1x10	0.633 1.61	232 345
More Options	10 AWG 10 AWG	4 4	BN,OE,YW,GY BN,OE,YW,GY	0.117 0.30	19 19	25 0.64	1x10 1x10	0.674 1.71	251 374

Note: Conductor number = number of phase conductors plus neutral. Does not include green ground.

	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	14 AWG 14 AWG	4 4	3.6 9.14	2.631 3.92	3.170 4.72	0.058 0.09	16 16	20 20
More Options	12 AWG 12 AWG	2 2	3.4 8.64	1.662 2.47	2.002 2.98	0.054 0.08	25 25	30 30
More Options	12 AWG 12 AWG	2 2	3.5 8.89	1.662 2.47	2.002 2.98	0.054 0.08	25 25	30 30
More Options	12 AWG 12 AWG	3 3	3.6 9.14	1.662 2.47	2.002 2.98	0.054 0.08	25 25	30 30
More Options	12 AWG 12 AWG	3 3	3.8 9.65	1.662 2.47	2.002 2.98	0.054 0.08	25 25	30 30
More Options	12 AWG 12 AWG	4 4	3.8 9.65	1.662 2.47	2.002 2.98	0.054 0.08	20 20	24 24
More Options	10 AWG 10 AWG	2 2	3.9 9.91	1.040 1.55	1.253 1.86	0.050 0.07	35 35	40 40
More Options	10 AWG 10 AWG	2 2	4.1 10.41	1.040 1.55	1.253 1.86	0.050 0.07	35 35	40 40
More Options	10 AWG 10 AWG	3 3	4.1 10.41	1.040 1.55	1.253 1.86	0.050 0.07	35 35	40 40
More Options	10 AWG 10 AWG	3 3	4.4 11.18	1.040 1.55	1.253 1.86	0.050 0.07	35 35	40 40
More Options	10 AWG 10 AWG	4 4	4.4 11.18	1.040 1.55	1.253 1.86	0.050 0.07	28 28	32 32
More Options	10 AWG 10 AWG	4 4	4.7 11.94	1.040 1.55	1.253 1.86	0.050 0.07	28 28	32 32

* 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.

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.
VW-1 (Vertical-Wire) Flame Test

Construction

Conductor:Solid or 19 strands class C 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 ground. Polyvinyl Chloride with Nylon Sheath Type THHN/THWN
Binder:Mylar tape
Armor:Aluminum Interlocked Armor

Resources

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