THWN-2 Cable | McMaster-Carr

Filter by

American Wire Gauge (AWG)

Outer Jacket Color

System of Measurement

Length

Voltage

Number of Wires

Cable Designation

Wire Construction

Wire Material

Current @ Temperature

Flexibility

Use For

Shielding

Certification

Wire Strand Count

Wire Finish

Outer Jacket Material

Maximum Temperature

Inner Insulation Material

RoHS Compliance

REACH Compliance

DFARS Compliance

Forward

How can we improve?

20 Products

About Wire and Cable

Use for buildings
Stranded Wire: Flexible
Solid Wire: Bend and Stay
Temperature Range:
Wire with Nylon Outer Insulation: -10° to 190° F
Wire with Polyethylene Outer Insulation: -40° to 190° F

Install this copper wire in conduit and cable trays in commercial and industrial buildings. It's also known as branch circuit wire. The outer jacket is designed to be installed without applying pulling lubricant.

Stranded wire is flexible, so it’s pliable enough to be pulled around corners. Wire with a nylon outer insulation resists oil and water. THHN wire can be used in dry or damp locations where wire is exposed to condensation or moisture, such as a basement. THWN and THWN-2 wire can be used in both wet and dry environments.

Flame rated VW-1 wire meets requirements for preventing the spread of flames based on a timed test with vertically suspended material.

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

Stranded Wire with Nylon Plastic Outer and PVC Plastic Inner Insulation

TFFN, THHN/THWN, and THHN/THWN-2 Stranded

Shorter Lengths

600V AC/600V DC
Wire Ga.	Strand Count	Current	OD	Industry Designation	Specifications Met	Choose an Outer Insulation Color	Length, ft.		Per Ft.
8	19/21	55 A @ 86° F	0.21"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	0000000	00000
6	19/19	75 A @ 86° F	0.25"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	0000000	0000
4	19/17	95 A @ 86° F	0.32"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	0000000	0000
3	19/16	110 A @ 86° F	0.35"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	0000000	0000
2	19/15	130 A @ 86° F	0.38"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	0000000	0000
1/0	19/13	170 A @ 86° F	0.47"	THHN, THWN-2	UL Listed	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	0000000	0000
2/0	19/12	195 A @ 86° F	0.52"	THHN, THWN-2	UL Listed	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	0000000	0000

500-ft. Spools

600V AC/600V DC
Wire Ga.	Strand Count	Current	OD	Industry Designation	Specifications Met	Choose an Outer Insulation Color		Each
8	19/21	55 A @ 86° F	0.21"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	0000000	0000000
6	19/19	75 A @ 86° F	0.25"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	0000000	000000
4	19/17	95 A @ 86° F	0.32"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	0000000	000000
3	19/16	110 A @ 86° F	0.35"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	0000000	00000000
2	19/15	130 A @ 86° F	0.38"	THHN, THWN-2	UL Listed, C-UL Listed, UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	0000000	00000000
1/0	19/13	170 A @ 86° F	0.47"	THHN, THWN-2	UL Listed	Black, Blue, Brown, Green, Orange, Red, White, Yellow	0000000	00000000
2/0	19/12	195 A @ 86° F	0.52"	THHN, THWN-2	UL Listed	Black, Blue, Brown, Green, Orange, Red, White, Yellow	0000000	00000000

Aluminum Building Wire

Use for buildings
Flexible
Temperature Range: -40° to 190° F

Mend or extend aluminum wire often found in older buildings. This wire isn’t recommended for new wiring, since it’s more likely to overheat than copper when conducting electricity. However, it’s safer to maintain existing aluminum wire with aluminum rather than mixing materials. Building wire is also known as branch circuit wire.

This wire has an outer layer of nylon insulation that won't degrade from oil and water. It’s designed to be pulled through conduit without pulling lubricants. THHN and THWN-2 designated, this wire can be used in damp places.

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

Stranded Wire with Nylon Plastic Outer and PVC Plastic Inner Insulation
Wire Ga.	Current	OD	Outer Insulation Color	Industry Designation	Specifications Met		25 ft.	50 ft.	100 ft.	250 ft.	500 ft.
600V AC/600V DC
6	55 A @ 86° F	0.24"	Black	THHN, THWN-2	UL Listed	0000000	000000	000000	000000	0000000	0000000
4	75 A @ 86° F	0.3"	Black	THHN, THWN-2	UL Listed	0000000	00000	00000	00000	000000	000000
2	100 A @ 86° F	0.36"	Black	THHN, THWN-2	UL Listed	0000000	00000	00000	00000	000000	000000
1	115 A @ 86° F	0.41"	Black	THHN, THWN-2	UL Listed	0000000	00000	00000	00000	000000	000000
1/0	135 A @ 86° F	0.45"	Black	THHN, THWN-2	UL Listed	0000000	00000	00000	00000	000000	000000
2/0	150 A @ 86° F	0.49"	Black	THHN, THWN-2	UL Listed	0000000	00000	00000	000000	000000	000000