Thermocouple Extensions | McMaster-Carr

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110 Products

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
				K	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K212	00000
				K	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K222	00000
				K	-15 to 220	50	24	0.17"	PVC	PVC	220	3873K232	00000
				T	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K213	00000
				T	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K223	00000
				T	-15 to 220	50	24	0.17"	PVC	PVC	220	3873K233	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
						K	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K65	00000
						K	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K68	00000
						T	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K66	00000
						T	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K69	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
								K	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K242	00000
								K	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K252	00000
								K	-15 to 220	50	24	0.17"	PVC	PVC	220	3873K262	00000
								T	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K243	00000
								T	-15 to 220	25	24	0.17"	PVC	PVC	220	3873K253	00000
								T	-15 to 220	50	24	0.17"	PVC	PVC	220	3873K263	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


K	-30 to 220											5	28	0.165"	PTFE	Polyurethane Rubber	220	3873K272	00000
T	-30 to 220											5	28	0.165"	PTFE	Polyurethane Rubber	220	3873K273	00000




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

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


		K	-30 to 220									5	28	0.165"	PTFE	Polyurethane Rubber	220	3873K62	00000
		T	-30 to 220									5	28	0.165"	PTFE	Polyurethane Rubber	220	3873K63	00000

Armored Thermocouple Cords with Connectors

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





		Male × Female Flat-Pin Mini Connector

				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
				K	32 to 350	5	24	0.02"	PTFE	Stainless Steel	2,300	350	5787N14	00000
				K	32 to 350	10	24	0.02"	PTFE	Stainless Steel	2,300	350	5787N15	00000
				K	32 to 350	25	24	0.02"	PTFE	Stainless Steel	2,300	350	5787N16	000000
				T	32 to 350	5	24	0.02"	PTFE	Stainless Steel	700	350	5787N17	00000
				T	32 to 350	10	24	0.02"	PTFE	Stainless Steel	700	350	5787N18	00000


				Male × Female Round-Pin Connector

						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
						K	32 to 350	5	24	0.02"	PTFE	Stainless Steel	2,300	350	5787N23	00000
						K	32 to 350	10	24	0.02"	PTFE	Stainless Steel	2,300	350	5787N24	00000
						K	32 to 350	25	24	0.02"	PTFE	Stainless Steel	2,300	350	5787N25	000000
						T	32 to 350	5	24	0.02"	PTFE	Stainless Steel	700	350	5787N26	00000
						T	32 to 350	10	24	0.02"	PTFE	Stainless Steel	700	350	5787N27	00000

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.

Silica Insulation—Silica insulation and jacket resists continuous exposure to temperatures up to 1600° F.

Ceramic Fiber Insulation—Ceramic fiber insulation and jacket withstands continuous exposure to temperatures up to 2200° F.

		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
				K	Not Rated	400	16	0.051"	400	2	Yellow	Red	Brown	10 , 20 , 50 , 100	3870K51	0000	0000
				K	Not Rated	400	18	0.04"	400	2	Yellow	Red	Brown	10 , 20 , 50 , 100	3870K221	0000	0000
				K	Not Rated	400	20	0.032"	400	2	Yellow	Red	Brown	10 , 20 , 50 , 100	3870K62	0000	0000
				K	Not Rated	400	24	0.02"	400	2	Yellow	Red	Brown	10 , 20 , 50 , 100	3870K32	0000	0000
				K	Not Rated	400	30	0.01"	400	2	Yellow	Red	Brown	10 , 20 , 50 , 100	3870K231	0000	0000
				T	Not Rated	400	16	0.051"	400	2	Blue	Red	Brown	10 , 20 , 50 , 100	3870K56	0000	0000
				T	Not Rated	400	20	0.032"	400	2	Blue	Red	Brown	10 , 20 , 50 , 100	3870K57	0000	0000


				T	Not Rated	400	24	0.02"	400	2	Blue	Red	Brown	10 , 20 , 50 , 100	3870K33	0000	0000
				T	Not Rated	400	30	0.01"	400	2	Blue	Red	Brown	10 , 20 , 50 , 100	3870K241	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
						K	Not Rated	900	16	0.051"	900	2	Yellow	Red	Brown with Yellow Tracer	10 , 20 , 50 , 100	3870K53	0000	0000
						K	Not Rated	900	18	0.04"	900	2	Yellow	Red	Brown with Yellow Tracer	10 , 20 , 50 , 100	3870K251	0000	0000
						K	Not Rated	900	20	0.032"	900	2	Yellow	Red	Brown with Yellow Tracer	10 , 20 , 50 , 100	3870K64	0000	0000
						K	Not Rated	900	24	0.02"	900	2	Yellow	Red	Brown with Yellow Tracer	10 , 20 , 50 , 100	3870K35	0000	0000
						T	Not Rated	900	16	0.051"	900	2	Blue	Red	Brown with Blue Tracer	10 , 20 , 50 , 100	3870K58	0000	0000
						T	Not Rated	900	20	0.032"	900	2	Blue	Red	Brown with Blue Tracer	10 , 20 , 50 , 100	3870K59	0000	0000
						T	Not Rated	900	24	0.02"	900	2	Blue	Red	Brown with Blue Tracer	10 , 20 , 50 , 100	3870K36	0000	0000




								Polyimide Insulation and Jacket

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


								K	0	600	20	0.032"	600	2	Yellow	Red	Brown	10 , 20 , 50 , 100	3870K16	0000	0000




										Silica Insulation and Jacket

										KK	Not Rated	1,600	16	0.051"	1,600	2	White	White	White	10 , 20 , 50 , 100	3870K54	0000	0000


										KK	Not Rated	1,600	20	0.032"	1,600	2	White	White	White	10 , 20 , 50 , 100	3870K65	0000	0000
KK										Not Rated	1,600	24	0.02"	1,600	2	White	White	White	10 , 20 , 50 , 100	3870K261	0000	0000




		Ceramic Fiber Insulation and Jacket

		KK	Not Rated							2,200	16	0.051"	2,200	2	White	White	White with Yellow Tracer	10 , 20 , 50 , 100	3870K55	0000	0000


		KK	Not Rated							2,200	20	0.032"	2,200	2	White	White	White with Yellow Tracer	10 , 20 , 50 , 100	3870K66	0000	0000
		KK	Not Rated							2,200	24	0.02"	2,200	2	White	White	White with Yellow Tracer	10 , 20 , 50 , 100	3870K271	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
												K	Not Rated	400	16	0.051"	400	2	Yellow	Red	Brown	10 , 20 , 50 , 100	6579T92	0000	0000
				K								Not Rated	400	20	0.032"	400	2	Yellow	Red	Brown	10 , 20 , 50 , 100	6579T22	0000	0000
				K	Not Rated							400	24	0.02"	400	2	Yellow	Red	Brown	10 , 20 , 50 , 100	6579T38	0000	0000
				T	Not Rated							400	16	0.051"	400	2	Blue	Red	Brown	10 , 20 , 50 , 100	6579T93	0000	0000
				T	Not Rated							400	20	0.032"	400	2	Blue	Red	Brown	10 , 20 , 50 , 100	6579T23	0000	0000
				T	Not Rated							400	24	0.02"	400	2	Blue	Red	Brown	10 , 20 , 50 , 100	6579T39	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
												K	Not Rated	900	16	0.051"	900	2	Yellow	Red	Brown with Yellow Tracer	10 , 20 , 50 , 100	6579T95	0000	0000
												K	Not Rated	900	20	0.032"	900	2	Yellow	Red	Brown with Yellow Tracer	10 , 20 , 50 , 100	6579T25	0000	0000
						K						Not Rated	900	24	0.02"	900	2	Yellow	Red	Brown with Yellow Tracer	10 , 20 , 50 , 100	6579T42	0000	0000
						T	Not Rated					900	16	0.051"	900	2	Blue	Red	Brown with Blue Tracer	10 , 20 , 50 , 100	6579T96	0000	0000
						T	Not Rated					900	20	0.032"	900	2	Blue	Red	Brown with Blue Tracer	10 , 20 , 50 , 100	6579T26	0000	0000
						T	Not Rated					900	24	0.02"	900	2	Blue	Red	Brown with Blue Tracer	10 , 20 , 50 , 100	6579T43	0000	0000




												Polyimide Insulation and Jacket

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


								K	0			600	20	0.038"	600	2	Yellow	Red	Brown	10 , 20 , 50 , 100	6579T51	0000	0000

Thermocouple Extension Wire

Designed to carry thermocouple signals over longer distances than standard thermocouple wire, this extension wire lengthens existing thermocouple connections.

Shielded—Shielded wire has a layer of foil that blocks signal interference from nearby equipment and devices. It has an uninsulated ground wire that is not counted in the number of wires.

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

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







				PVC Insulation and Jacket

				JX	-40	220	16	0.051"	220	2	White	Red	Black	—	UL Recognized Component	10 , 20 , 50 , 100	3870K69	00000	00000


				JX	-40	220	20	0.032"	220	2	White	Red	Black	—	UL Recognized Component	10 , 20 , 50 , 100	3870K82	0000	0000
				KX	-40	220	16	0.051"	220	2	Yellow	Red	Yellow	—	UL Recognized Component	10 , 20 , 50 , 100	3870K71	0000	0000
				KX	-40	220	20	0.032"	220	2	Yellow	Red	Yellow	—	UL Recognized Component	10 , 20 , 50 , 100	3870K81	0000	0000
				TX	-40	220	16	0.051"	220	2	Blue	Red	Blue	—	UL Recognized Component	10 , 20 , 50 , 100	3870K72	0000	0000
				TX	-40	220	20	0.032"	220	2	Blue	Red	Blue	—	UL Recognized Component	10 , 20 , 50 , 100	3870K86	0000	0000


				Unshielded Stranded Wire







								PVC Insulation and Jacket

								JX	15	220	20	0.032"	220	2	White	Red	Black	—	UL Recognized Component	10 , 20 , 50 , 100	6229N151	0000	0000


								KX	15	220	20	0.032"	220	2	Yellow	Red	Yellow	—	UL Recognized Component	10 , 20 , 50 , 100	6229N161	0000	0000
								TX	15	220	20	0.032"	220	2	Blue	Red	Blue	—	UL Recognized Component	10 , 20 , 50 , 100	6229N171	0000	0000


								Shielded Solid Wire







												PVC Insulation and Jacket

												JX	Not Rated	220	16	0.051"	220	2	White	Red	Black	Uninsulated Ground Wire	—	10 , 20 , 50 , 100	3870K11	0000	0000


												JX	Not Rated	220	20	0.032"	220	2	White	Red	Black	Uninsulated Ground Wire	—	10 , 20 , 50 , 100	3870K12	0000	0000
												KX	Not Rated	220	16	0.051"	220	2	Yellow	Red	Yellow	Uninsulated Ground Wire	—	10 , 20 , 50 , 100	3870K13	0000	0000
												KX	Not Rated	220	20	0.032"	220	2	Yellow	Red	Yellow	Uninsulated Ground Wire	—	10 , 20 , 50 , 100	3870K14	0000	0000