SPEC: 60218

Armorlite® Type MC THHN/THWN Circuit Size Copper Conductor Oversized Neutral

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

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Application & Features

Southwire Armorlite® Type MC Cable Oversized-Neutral is suitable for use as follow:
- Applications affected by harmonics generated from non-linear switching loads, such as computers, variable frequency drives, electrical test equipment, and office equipment.
- 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
- 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 Armorlite® Type MC Cable Oversized-Neutral 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	Num x Neutral Size	Diameter Over Armor (in) (cm)	Approx. Weight (lbs/1000') (kgs/km)
More Options	12 AWG 12 AWG	1 1	BK,WE BK,WE	0.080 0.20	Solid Solid	20 0.51	1x12 1x12	1x10 1x10	0.497 1.26	121 180
More Options	12 AWG 12 AWG	2 2	BK,RD,WE BK,RD,WE	0.080 0.20	Solid Solid	20 0.51	1x12 1x12	1x10 1x10	0.524 1.33	147 219
More Options	12 AWG 12 AWG	3 3	BK,RD,BE,WE BK,RD,BE,WE	0.080 0.20	Solid Solid	20 0.51	1x12 1x12	1x10 1x10	0.557 1.41	175 260
More Options	12 AWG 12 AWG	4 4	See Table See Table	0.080 0.20	Solid Solid	20 0.51	1x12 1x12	1x10 1x10	0.593 1.51	201 299
More Options	12 AWG 12 AWG	4 4	See Table See Table	0.080 0.20	Solid Solid	20 0.51	2x12 2x12	2x10 2x10	0.641 1.63	268 399
More Options	12 AWG 12 AWG	6 6	See Table See Table	0.080 0.20	Solid Solid	20 0.51	2x12 2x12	2x10 2x10	0.784 1.99	353 525
More Options	10 AWG 10 AWG	4 4	See Table See Table	0.101 0.26	Solid Solid	25 0.64	2x10 2x10	2x8 2x8	0.878 2.23	448 667

Note: Conductor number = number of phase conductors. Does not include neutrals and green 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	Neutral Stranding (mils) (mm)	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	12 AWG 12 AWG	1 1	1 0.03	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	2 2	1 0.03	3.7 9.40	1.662 2.47	2.002 2.98	0.054 0.08	25 25	30 30
More Options	12 AWG 12 AWG	3 3	1 0.03	4.0 10.16	1.662 2.47	2.002 2.98	0.054 0.08	20 20	24 24
More Options	12 AWG 12 AWG	4 4	1 0.03	4.2 10.67	1.662 2.47	2.002 2.98	0.054 0.08	20 20	24 24
More Options	12 AWG 12 AWG	4 4	2 0.05	4.6 11.68	1.662 2.47	2.002 2.98	0.054 0.08	20 20	24 24
More Options	12 AWG 12 AWG	6 6	2 0.05	5.5 13.97	1.662 2.47	2.002 2.98	0.054 0.08	17 17	21 21
More Options	10 AWG 10 AWG	4 4	2 0.05	6.1 15.49	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.

Size (Strand)	Cond. Number	Stock Code	Color
12 (Solid) 12 (Solid)	1 1	690826	BK, GN, WE BK, GN, WE
12 (Solid) 12 (Solid)	2 2	690859	BK, RD, GN, WE BK, RD, GN, WE
12 (Solid) 12 (Solid)	2 2	550654 550654	BK, RD, GN, GN/YW, WE BK, RD, GN, GN/YW, WE
12 (Solid) 12 (Solid)	3 3	690883	BK, RD, BE, WE, GN BK, RD, BE, WE, GN
12 (Solid) 12 (Solid)	3 3	690917 690917	BK, RD, BE, GN, WE BK, RD, BE, GN, WE
12 (Solid) 12 (Solid)	3 3	565760 565760	BN, OE, YW, GN, GY BN, OE, YW, GN, GY
12 (Solid) 12 (Solid)	3 3	555209 555209	BK, RD, BE, GN, GN/YW, WE, WE/BE, WE/RD BK, RD, BE, GN, GN/YW, WE, WE/BE, WE/RD
12 (Solid) 12 (Solid)	4 4	690941	BK, RD, BE, OE, GN, WE BK, RD, BE, OE, GN, WE
12 (Solid) 12 (Solid)	4 4	695130	BK, RD, BE, OE, GN, GN/YW, WE, WE/OE BK, RD, BE, OE, GN, GN/YW, WE, WE/OE
12 (Solid) 12 (Solid)	6 6	553633	BK, RD, BE, BK/WE, RD/WE, BE/WE, WE, WE/BK, GN, GN/YW BK, RD, BE, BK/WE, RD/WE, BE/WE, WE, WE/BK, GN, GN/YW
10 (Solid) 10 (Solid)	2 2	690974 690974	BK, RD, GN, WE BK, RD, GN, WE
10 (Solid) 10 (Solid)	3 3	691006 691006	BK, RD, BE, GN, WE BK, RD, BE, GN, WE
10 (Solid) 10 (Solid)	4 4	552985	BK, RD, BE, PE, WE, WE/BK, GN, GN/YW BK, RD, BE, PE, WE, WE/BK, GN, GN/YW
10 (Solid) 10 (Solid)	6 6	585022 585022	BK, RD, BE, BK/WE, RD/WE, BE/WE, WE, WE/BK, GN BK, RD, BE, BK/WE, RD/WE, BE/WE, WE, WE/BK, GN
10 (Solid) 10 (Solid)	6 6	552983 552983	BK, RD, BE, BK/WE, RD/WE, BE/WE, WE, WE/BK, GN, GN/YW BK, RD, BE, BK/WE, RD/WE, BE/WE, WE, WE/BK, GN, GN/YW
12 (19) 12 (19)	1 1	551318 551318	BK, GN, WE BK, GN, WE
12 (19) 12 (19)	4 4	551330 551330	BK, RD, BE, OE, GN, WE BK, RD, BE, OE, GN, WE

Standards & References

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
Neutral:Oversized insulated neutral 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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