THWN-2 Electrical Wire | McMaster-Carr

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Outer Jacket Material

Nylon

Minimum Temperature

-49° F to -25° F

-24° F to -1° F

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PVC

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

EAR99

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About Wire and Cable

Compare wire vs. cable and choose the right option based on gauge, number of conductors, insulation, and current rating.

Building Wire

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 with Nylon Outer Jacket and PVC Inner Insulation

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

Stranded

Stranded wire is flexible, so it’s pliable enough to be pulled around corners.

Wire with a nylon outer jacket resists oil and water.

THHN Cable—THHN wire can be used in dry or damp locations where wire is exposed to condensation or moisture, such as a basement.

THWN-2 Cable—THWN and THWN-2 wire can be used in both wet and dry environments.

UL 2556 VW-1—Flame rated VW-1 wire meets requirements for preventing the spread of flames based on a timed test with vertically suspended material.

										Shorter Lengths			Longer Lengths

	AWG	Wire Strand Count	Current @ Temp.	OD	Temp. Range, ° F	Cable Designation	Certification	Flammability Rating	Choose an Outer Jacket Color	Choose a Length, ft.		Per Ft.	Lg., ft.		Each
600V AC/600V DC



		8	19/21	55 amp @ 86° F	0.21"	-10 to 190	THHN, THWN-2	C-UL Listed, UL Listed	UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	7715T16	00000	500	7715T56	0000000


		6	19/19	75 amp @ 86° F	0.25"	-10 to 190	THHN, THWN-2	C-UL Listed, UL Listed	UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	7715T17	0000	500	7715T57	000000
		4	19/17	95 amp @ 86° F	0.32"	-10 to 190	THHN, THWN-2	C-UL Listed, UL Listed	UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	7715T18	0000	500	7715T58	000000
		3	19/16	110 amp @ 86° F	0.35"	-10 to 190	THHN, THWN-2	C-UL Listed, UL Listed	UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	7715T19	0000	500	7715T59	00000000
		2	19/15	130 amp @ 86° F	0.38"	-10 to 190	THHN, THWN-2	C-UL Listed, UL Listed	UL 2556 VW-1	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	7715T21	0000	500	7715T61	00000000
		1/0	19/13	170 amp @ 86° F	0.47"	-10 to 190	THHN, THWN-2	UL Listed	—	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	7715T22	0000	500	7715T62	00000000
		2/0	19/12	195 amp @ 86° F	0.52"	-10 to 190	THHN, THWN-2	UL Listed	—	Black, Blue, Brown, Green, Orange, Red, White, Yellow	10, 25, 50, 100, 250	7715T23	0000	500	7715T63	00000000

Aluminum Building Wire

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.

	Temp. Range, ° F	Outer Jacket Color	Cable Designation	Certification		25 ft. Long	50 ft. Long	100 ft. Long	250 ft. Long	500 ft. Long
Stranded Wire with Nylon Outer Jacket and PVC Inner Insulation







	600V AC/600V DC

	6	55 amp @ 86° F	0.24"	-40 to 190	Black	THHN, THWN-2	UL Listed	6082N11	000000	000000	000000	0000000	0000000


	4	75 amp @ 86° F	0.3"	-40 to 190	Black	THHN, THWN-2	UL Listed	6082N12	00000	00000	00000	000000	000000
	2	100 amp @ 86° F	0.36"	-40 to 190	Black	THHN, THWN-2	UL Listed	6082N13	00000	00000	00000	000000	000000
	1	115 amp @ 86° F	0.41"	-40 to 190	Black	THHN, THWN-2	UL Listed	6082N14	00000	00000	00000	000000	000000
	1/0	135 amp @ 86° F	0.45"	-40 to 190	Black	THHN, THWN-2	UL Listed	6082N15	00000	00000	00000	000000	000000
	2/0	150 amp @ 86° F	0.49"	-40 to 190	Black	THHN, THWN-2	UL Listed	6082N16	00000	00000	000000	000000	000000