J Electrical Wire | McMaster-Carr

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Thermocouple Type

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Flat-Pin Mini Thermocouple Connector

Round-Pin Thermocouple Connector

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Insulation Material

Material

Wire Diameter

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Negative Wire Color

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

Yes

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

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Electrical Connection

Flat-Pin Mini Thermocouple Connector

Round-Pin Thermocouple Connector

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Wire and Cable Use

31 Products

About Wire and Cable

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

Thermocouple Wire

Make your own thermocouples.

Stranded Wire—Stranded wire is more flexible than solid wire.

FEP Insulation—FEP insulation and jacket is abrasion and chemical resistant.

Fiberglass Insulation—Fiberglass insulation and jacket is rated for higher temperatures than FEP and is highly chemical resistant.

Polyimide Insulation—Polyimide insulation and jacket stands up to humid conditions and rapid temperature changes.

		Temp., ° F		Wire				Wire Color					Per Ft.
	Thermocouple Type	Min.	Max.	AWG	Dia.	Max. Jacket Temp., ° F	No. of Wires	Positive	Negative	Jacket Color	Choose a Length, ft.		1-99	100-Up
Solid Wire







				FEP Insulation and Jacket

				J	Not Rated	400	16	0.051"	400	2	White	Red	Brown	10, 20, 50, 100	3870K49	00000	00000


				J	Not Rated	400	20	0.032"	400	2	White	Red	Brown	10, 20, 50, 100	3870K61	0000	0000
				J	Not Rated	400	24	0.02"	400	2	White	Red	Brown	10, 20, 50, 100	3870K31	0000	0000
				J	Not Rated	400	30	0.01"	400	2	White	Red	Brown	10, 20, 50, 100	3870K211	0000	0000




						Fiberglass Insulation and Jacket

						J	Not Rated	900	16	0.051"	900	2	White	Red	Brown with Black Tracer	10, 20, 50, 100	3870K52	0000	0000


						J	Not Rated	900	20	0.032"	900	2	White	Red	Brown with Black Tracer	10, 20, 50, 100	3870K63	0000	0000
						J	Not Rated	900	24	0.02"	900	2	White	Red	Brown with Black Tracer	10, 20, 50, 100	3870K34	0000	0000




								Polyimide Insulation and Jacket

								J	0	600	20	0.032"	600	2	White	Red	Brown	10, 20, 50, 100	3870K15	0000	0000


								Stranded Wire







												FEP Insulation and Jacket

												J	Not Rated	400	16	0.051"	400	2	White	Red	Brown	10, 20, 50, 100	6579T91	0000	0000


												J	Not Rated	400	20	0.032"	400	2	White	Red	Brown	10, 20, 50, 100	6579T21	0000	0000
												J	Not Rated	400	24	0.02"	400	2	White	Red	Brown	10, 20, 50, 100	6579T37	0000	0000




														Fiberglass Insulation and Jacket

														J	Not Rated	900	16	0.051"	900	2	White	Red	Brown with Black Tracer	10, 20, 50, 100	6579T94	0000	0000


														J	Not Rated	900	20	0.032"	900	2	White	Red	Brown with Black Tracer	10, 20, 50, 100	6579T24	0000	0000
														J	Not Rated	900	24	0.02"	900	2	White	Red	Brown with Black Tracer	10, 20, 50, 100	6579T41	0000	0000




	Polyimide Insulation and Jacket

	J														0	600	20	0.038"	600	2	White	Red	Brown	10, 20, 50, 100	6579T53	0000	0000

Armored Thermocouple Cords with Connectors


Male × Female Flat-Pin Mini Connector	Male × Female Round-Pin Connector

With plug-in connectors on both ends, these cords extend the reach of your thermocouple. Made of thermocouple materials, they prevent signal loss.

Choose a cord that matches your thermocouple type. You should also make sure the equipment you're connecting it to is compatible with the same thermocouple type.

Stainless Steel Jacket—These cords are protected by a stainless steel armor that also resists corrosion and wear.

				Wire		Material
	Thermocouple Type	Temp. Range, ° F	Lg., ft.	AWG	Dia.	Insulation	Jacket	Max. Jacket Temp., ° F	Insulation Max. Temp., ° F		Each
Stranded Wire







				Flat-Pin Mini Male × Flat-Pin Mini Female Connector

				J	32 to 350	5	24	0.02"	PTFE	Stainless Steel	1,400	350	5787N11	000000


				J	32 to 350	10	24	0.02"	PTFE	Stainless Steel	1,400	350	5787N12	00000
				J	32 to 350	25	24	0.02"	PTFE	Stainless Steel	1,400	350	5787N13	000000




						Round-Pin Male × Round-Pin Female Connector

						J	32 to 350	5	24	0.02"	PTFE	Stainless Steel	1,400	350	5787N19	00000


						J	32 to 350	10	24	0.02"	PTFE	Stainless Steel	1,400	350	5787N21	00000
						J	32 to 350	25	24	0.02"	PTFE	Stainless Steel	1,400	350	5787N22	000000

Thermocouple Cords with Connectors


Straight Cable with Flat-Pin Mini Male × Female Connector	Straight Cable with Flat-Pin Mini Male × Male Connector	Straight Cable with Round-Pin Male × Female Connector

Coiled Cable with Flat-Pin Mini Male × Female Connector	Coiled Cable with Flat-Pin Mini Male × Male Connector

Extend the reach of your thermocouple probe—plug-in connectors on both ends of these cords speed up installation.

Coiled Cable—Coiled cable stays neat and compact for easy storage. You can stretch it out to extend its reach.

				Wire		Material
	Thermocouple Type	Temp. Range, ° F	Lg., ft.	AWG	Dia.	Insulation	Jacket	Max. Jacket Temp., ° F		Each
Straight Cable—Solid Wire







				Flat-Pin Mini Male × Flat-Pin Mini Female Connector

				J	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K211	000000


				J	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K221	00000
				J	-15 to 220	50	24	0.17"	PVC	PVC	220	3873K231	00000




						Flat-Pin Mini Male × Flat-Pin Mini Male Connector

						J	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K64	00000


						J	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K67	00000




								Round-Pin Male × Round-Pin Female Connector

								J	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K241	00000


								J	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K251	00000
								J	-15 to 220	50	24	0.17"	PVC	PVC	220	3873K261	00000


								Coiled Cable—Stranded Wire







												Flat-Pin Mini Male × Flat-Pin Mini Female Connector

												J	-30 to 220	5	28	0.165"	PTFE	Polyurethane Rubber	220	3873K271	00000




														Flat-Pin Mini Male × Flat-Pin Mini Male Connector

														J	-30 to 220	5	28	0.165"	PTFE	Polyurethane Rubber	220	3873K61	00000