MC Electrical Cable | McMaster-Carr

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About Wire and Cable

About Conduit

THHN

XHHW-2

Use For: Buildings
Flexible
Temperature Range:
MC, THHN: 15° to 190° F
MC, XHHW-2: -40° to 190° F
Outer Insulation:
MC, THHN: Aluminum Armor
MC, XHHW-2: Aluminum Armor, PVC Plastic
Inner Insulation:
MC, THHN: PVC Plastic
MC, XHHW-2: Cross-Linked Polyethylene (XLPE)

Also known as metal clad (MC) cable, this cable has metal armor that acts as conduit to protect the building wires. It's often used along the exterior of walls to carry power to outlet boxes. It has a ground wire that is not counted in the number of wires.

Hazardous location environmental ratings indicate whether manufacturers have included safety features in products to facilitate their safe use in a hazardous environment. Before selecting a product for a hazardous location, ensure it is rated for your environment.

Cable with THHN wire stands up to condensation and moisture in basements and other damp environments.

Cable with XHHW-2 wire has a PVC outer jacket over the aluminum armor. You can use it in wet environments where liquid might drip and splash on it. It can also be used for direct burial without a conduit.

For technical drawings and 3-D models, click on a part number.

MC, THHN Solid Wire
Wire Ga.	No. of Wires	Cable AWG	Current	OD	Inner Insulation Color	Features	Environmental Rating	Specifications Met		10 ft.	25 ft.	50 ft.	100 ft.	250 ft.
600V AC
14	2	14/2	15 A @ 86° F	0.44"	Black, Green, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	000000	000000	000000	0000000	0000000
14	3	14/3	15 A @ 86° F	0.46"	Black, Green, Red, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	00000	00000	000000	000000	000000
14	4	14/4	15 A @ 86° F	0.49"	Black, Blue, Green, Red, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	00000	00000	000000	000000	000000
12	2	12/2	20 A @ 86° F	0.48"	Black, Green, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	00000	00000	00000	000000	000000
12	3	12/3	20 A @ 86° F	0.51"	Black, Green, Red, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	00000	00000	000000	000000	000000
12	4	12/4	20 A @ 86° F	0.54"	Black, Blue, Green, Red, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	00000	000000	000000	000000	000000
10	2	10/2	30 A @ 86° F	0.54"	Black, Green, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	00000	00000	000000	000000	000000
10	3	10/3	30 A @ 86° F	0.58"	Black, Green, Red, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	00000	000000	000000	000000	000000
10	4	10/4	30 A @ 86° F	0.62"	Black, Blue, Green, Red, White	Insulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2	UL 1569, UL 2556 VW-1	0000000	00000	000000	000000	000000	00000000
MC, XHHW-2 Stranded Wire
600V AC/600V DC
14	3	14/3	15 A @ 86° F	0.64"	Black	Uninsulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Division 2	UL 1569	0000000	00000	00000	000000	000000	000000
12	3	12/3	20 A @ 86° F	0.65"	Black	Uninsulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Division 2	UL 1569	0000000	00000	00000	000000	000000	000000
12	4	12/4	20 A @ 86° F	0.68"	Black	Uninsulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Division 2	UL 1569	0000000	00000	00000	00000	000000	000000
10	3	10/3	30 A @ 86° F	0.7"	Black	Uninsulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Division 2	UL 1569	0000000	00000	000000	000000	000000	000000
10	4	10/4	30 A @ 86° F	0.74"	Black	Uninsulated Ground Wire	NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Division 2	UL 1569	0000000	00000	000000	000000	000000	000000

Adapters for Flexible Metal Conduit and Armored Cable

Attach flexible metal conduit and types AC and MC armored cable to a knockout in an outlet box or enclosure. Wye adapters join two pieces of conduit or armored cable to one knockout. The snap-in end has tabs that snap into the knockout without locknuts or tools.

The screw-clamp end tightens around conduit with a screw.

For technical drawings and 3-D models, click on a part number.

Straight Adapters—Zinc

Screw-Clamp × Snap-In

Screw-Clamp
× Threaded—
With Two Screws

Screw-Clamp × Threaded

Push-In × Snap-In

Conduit Connection		For Armored Cable		Electrical Box Connection
Conduit Trade Size	Gender	OD	Type	Pipe Size	Thread Type	For Knockout Trade Size	Gender	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Snap-In Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	__	__	1/2	Male	__	UL Listed, CSA Certified	0000000	00000
1/2	Female	0.71"-0.91"	AC, MC	__	__	1/2	Male	__	UL Listed, CSA Certified	0000000	0000
3/4	Female	0.84"-1.11"	AC, MC	__	__	3/4	Male	__	UL Listed, CSA Certified	0000000	0000
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	1/2	NPSM	__	Male	Locknut, Two Screws	UL Listed, CSA Certified	0000000	0000
3/8	Female	0.56"-0.61"	AC, MC	1/2	NPSM	__	Male	Locknut	UL Listed, CSA Certified	0000000	0000
Push-In Conduit Connection × Snap-In Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	__	__	1/2	Male	__	UL Listed, CSA Certified	0000000	0000

90° Elbow Adapters—Zinc

Conduit Connection		For Armored Cable		Electrical Box Connection
Conduit Trade Size	Gender	OD	Type	Pipe Size	Thread Type	Gender	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	0.45"-0.62"	MC	1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000
1/2	Female	0.75"-0.87"	MC	1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
3/4	Female	0.87"-1"	MC	3/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
1	Female	1.18"-1.31"	MC	1	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000
1 1/4	Female	1.5"-1.62"	MC	1 1/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000

Wye Adapters—Zinc

Push-In × Snap-In

Screw-Clamp × Snap-In

Screw-Clamp × Threaded

Conduit Connection		For Armored Cable		Electrical Box Connection
Conduit Trade Size	Gender	OD	Type	Pipe Size	Thread Type	For Knockout Trade Size	Gender	Includes	Specifications Met		Each
Push-In Conduit Connection × Snap-In Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	__	__	1/2	Male	__	UL Listed, CSA Certified	0000000	00000
Screw-Clamp Conduit Connection × Snap-In Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	__	__	1/2	Male	__	UL Listed, CSA Certified	0000000	0000
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	1/2	NPSM	__	Male	Locknut	UL Listed, CSA Certified	0000000	0000

Grommets for Flexible Metal Conduit and Armored Cable

Also known as antishort bushings, these grommets slide into the ends of conduit and types AC and MC armored cable to protect wire and cable from sharp edges.

For technical drawings and 3-D models, click on a part number.

Conduit Connection
Conduit Trade Size	Conduit Connection Type	Gender	For Armored Cable Gauge (Number of Wires)	For Armored Cable Type	Material	Color	Pkg. Qty.		Pkg.
5/16	Push-In	Female	14/2, 14/3, 12/2	AC, MC	Plastic	Red	100	0000000	000000
3/8	Push-In	Female	14/4, 12/3	AC, MC	Plastic	Red	100	0000000	00000
7/16	Push-In	Female	12/4, 10/2, 10/3	AC, MC	Plastic	Red	50	0000000	00000
1/2	Push-In	Female	10/4, 8/2, 8/3	AC, MC	Plastic	Red	50	0000000	00000
3/4	Push-In	Female	8/4, 6/2, 6/3	AC, MC	Plastic	Red	50	0000000	00000
1	Push-In	Female	1/3, 1/2, 1/0/2, 300 MCM (1), 350 MCM (1), 400 MCM (1), 450 MCM (1), 500 MCM (1)	AC, MC	Plastic	Red	1	00000000	0000
1 1/4	Push-In	Female	1/4, 1/0/4, 2/0/4, 1/0/3, 2/0/3, 3/0/3, 2/0/2, 3/0/2, 600 MCM (1), 650 MCM (1), 700 MCM (1), 750 MCM (1), 800 MCM (1), 900 MCM (1), 4/0/2	AC, MC	Plastic	Red	10	00000000	00000
1 1/2	Push-In	Female	3/0/4, 4/0/4, 250 MCM (3), 300 MCM (3), 250 MCM (2), 300 MCM (2), 350 MCM (2), 1000 MCM (1)	AC, MC	Plastic	Red	10	00000000	00000
2	Push-In	Female	250 MCM (4), 300 MCM (4), 350 MCM (4), 400 MCM (4), 450 MCM (4), 500 MCM (4), 350 MCM (3), 400 MCM (3), 450 MCM (3), 500 MCM (3), 400 MCM (2), 450 MCM (2), 500 MCM (2)	AC, MC	Plastic	Red	1	00000000	0000

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About Wire and Cable

About Conduit

Armored Building Cable

Adapters for Flexible Metal Conduit and Armored Cable

Grommets for Flexible Metal Conduit and Armored Cable