Type K Thermocouple Connector Adapters

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Thermocouple Type

Thermocouple Sensor Connection

Flat-Pin Mini Thermocouple Connector

Round-Pin Thermocouple Connector

Electrical Connection

Flat-Pin Mini Thermocouple Connector

Round-Pin Thermocouple Connector

Color

Connection Gender

Number of Connections

Gender

Maximum Temperature

1,000° F to 1,999.9° F

2,000° F or greater

For Maximum Wire Gauge

Material

Body Material

Wire Connection

Length

Mount Type

Maximum Jacket Temperature

Contact Material

Pin Length

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

Yes

American Wire Gauge (AWG)

REACH

RoHS

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

For Wire Gauge

Distance Between Pins

Wire Construction

74 Products

Thermocouple Connectors


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

Simplify connecting your thermocouple to thermometers and control panels—these connectors give your thermocouple a plug-in connection. To attach them to your thermocouple, first remove the panel on these connectors to expose the terminals. Then insert your thermocouple wire leads, tighten the terminals, and reattach the panel.

					Material		Male Connection		Female Connection
	Thermocouple Type	For Max. Wire Ga.	Color	Distance Between Pins	Body	Contact		Each		Each
Flat-Pin Mini Thermocouple Connectors—400° F Max. Temp.







				Screw-Terminal Wire Connection

				K	24	Yellow	0.313"	Plastic	Nickel	3869K35	00000	3869K34	00000


				Flat-Pin Mini Thermocouple Connectors—800° F Max. Temp.







								Screw-Terminal Wire Connection

								K	24	Red	0.313"	Plastic	Nickel	3869K42	0000	3869K45	0000


								Round-Pin Thermocouple Connectors—400° F Max. Temp.







												Screw-Terminal Wire Connection

												K	14	Yellow	0.438"	Plastic	Nickel	3869K25	0000	3869K24	0000


												Round-Pin Thermocouple Connectors—800° F Max. Temp.







																Screw-Terminal Wire Connection

																K	14	Red	0.438"	Plastic	Nickel	3869K52	00000	3869K55	00000

Thermocouple Connector Adapters

Convert round-pin thermocouple connectors to flat-pin mini thermocouple connectors.

						Material
	Thermocouple Type	Max. Temp., ° F	Color	Pin Lg.	Distance Between Pins	Body	Contact		Each
Female Round-Pin Thermocouple Connector × Male Flat-Pin Mini Thermocouple Connector



		K	400	Yellow	7/16"	0.438"	Plastic	Nickel	3869K71	000000

Panel-Mount Thermocouple Connector Strips

Create an easy way to plug in multiple thermocouples—these connector strips mount directly into your control panel. With at least two connections on each strip, you can plug in multiple thermocouples to monitor temperature at different points in your process. Each socket is numbered to help identify thermocouples and keep your wires organized. Choose a connector strip with a thermocouple type that matches the type of thermocouple you’re plugging in. You should also make sure the equipment you’re connecting it to is also compatible with the same thermocouple type.

Flat-Pin Mini Thermocouple Connector Connection—Connection strips for flat-pin mini thermocouple connectors install from the rear of your panel. They snap into place with spring clips.

Round-Pin Thermocouple Connector Connection—Connection strips for round-pin thermocouple connectors install from the front of your panel. Just tighten the screws on the front of the strip and T-nuts will hold it in place against your panel.

Mounting Frames—Add a mounting frame (sold separately) if your panel opening is larger than the cutout dimensions. When using a mounting frame, install your connection strip into the frame before attaching the entire assembly to your panel opening. Use the frame's mounting holes to secure your fasteners.

	Connectors											Mounting Frames
				For Panel Cutout			Material
	Thermocouple Type	No. of Connections	For Max. Wire Ga.	Wd.	Ht.	Color	Body	Contact	Fasteners Included		Each		Each
Female Flat-Pin Mini Thermocouple Connectors—400° F Max. Temp.
Flat-Pin Strip






				Screw-Terminal Wire Connection

				K	2	24	1 1/4"	1"	Yellow	Plastic	Nickel	Yes	3921K22	000000	5991N11	000000


				K	4	24	2 5/8"	1"	Yellow	Plastic	Nickel	Yes	3921K25	00000	5991N12	00000
				K	6	24	4"	1"	Yellow	Plastic	Nickel	Yes	3921K28	00000	5991N13	00000
				K	8	24	5 3/8"	1"	Yellow	Plastic	Nickel	Yes	3921K32	00000	5991N14	00000


				Female Flat-Pin Mini Thermocouple Connectors—800° F Max. Temp.
				Flat-Pin Strip






								Screw-Terminal Wire Connection

								K	2	24	1 1/4"	1"	Red	Plastic	Nickel	Yes	3921K215	00000	5991N11	00000


								K	4	24	2 5/8"	1"	Red	Plastic	Nickel	Yes	3921K216	00000	5991N12	00000
								K	6	24	4"	1"	Red	Plastic	Nickel	Yes	3921K217	00000	5991N13	00000
								K	8	24	5 3/8"	1"	Red	Plastic	Nickel	Yes	3921K218	000000	5991N14	00000


								Female Round-Pin Thermocouple Connectors—400° F Max. Temp.
								Round-Pin Strip






												Screw-Terminal Wire Connection

												K	2	16	1 5/16"	1 1/4"	Yellow	Plastic	Nickel	Yes	3921K42	00000	5991N15	00000


												K	4	16	2 13/16"	1 1/4"	Yellow	Plastic	Nickel	Yes	3921K45	00000	5991N16	00000
												K	6	16	4 5/16"	1 1/4"	Yellow	Plastic	Nickel	Yes	3921K48	00000	5991N17	00000
												K	8	16	5 13/16"	1 1/4"	Yellow	Plastic	Nickel	Yes	3921K52	00000	5991N18	00000
												K	10	16	7 5/16"	1 1/4"	Yellow	Plastic	Nickel	Yes	3921K233	00000	5991N19	00000
												K	12	16	8 13/16"	1 1/4"	Yellow	Plastic	Nickel	Yes	3921K235	000000	5991N21	00000


												Female Round-Pin Thermocouple Connectors—800° F Max. Temp.
												Round-Pin Strip






																Screw-Terminal Wire Connection

K	2															16	1 5/16"	1 1/4"	Red	Plastic	Nickel	Yes	3921K228	00000	5991N15	00000


K	4															16	2 13/16"	1 1/4"	Red	Plastic	Nickel	Yes	3921K229	00000	5991N16	00000
K	6	16														4 5/16"	1 1/4"	Red	Plastic	Nickel	Yes	3921K231	00000	5991N17	00000
K	8	16	5 13/16"													1 1/4"	Red	Plastic	Nickel	Yes	3921K232	000000	5991N18	00000
K	10	16	7 5/16"													1 1/4"	Red	Plastic	Nickel	Yes	3921K234	000000	5991N19	00000
K	12	16	8 13/16"													1 1/4"	Red	Plastic	Nickel	Yes	3921K236	000000	5991N21	00000

Quick-Wire Thermocouple Connectors


	Male Connector	Female Connector

No need to take these connectors apart to wire them—just insert your wire leads and tighten the terminals to quickly give your thermocouple a plug-in connection. Choose a connector with the same thermocouple type as the thermocouple you’re attaching. You should also make sure the equipment you’re plugging these connectors into is also compatible with the same thermocouple type.

					Material		Male Connection			Female Connection
	Thermocouple Type	For Max. Wire Ga.	Color	Distance Between Pins	Body	Contact	Pin Lg.		Each		Each
Round-Pin Thermocouple Connectors—400° F Max. Temp.







				Screw-Terminal Wire Connection

				K	14	Yellow	0.438"	Plastic	Nickel	9/16"	3869K17	00000	3869K14	00000


				Round-Pin Thermocouple Connectors—800° F Max. Temp.







								Screw-Terminal Wire Connection

								K	14	Red	0.438"	Plastic	Nickel	9/16"	3869K58	00000	3869K64	00000


								Round-Pin Thermocouple Connectors—1,000° F Max. Temp.







												Screw-Terminal Wire Connection

												K	14	White	0.442"	Ceramic	Nickel	1/2"	3869K92	00000	3869K95	00000

Panel-Mount Thermocouple Connectors


Flat-Pin Connector	Round-Pin Connector

Create a connection point on a control panel to plug in thermocouples. These connectors can be wired and installed entirely from the front of your panel.

							Material
	Thermocouple Type	No. of Connections	For Max. Wire Ga.	For Panel Cutout Dia.	For Knockout Trade Size	Color	Body	Contact	Fasteners Included	Includes		Each
Female Flat-Pin Mini Thermocouple Connectors—400° F Max. Temp.







				Screw-Terminal Wire Connection

				K	1	20	7/8", 1 1/8"	1/2, 3/4	Yellow	Plastic	Nickel	Yes	Knockout Adapter	3869K48	000000


				Female Flat-Pin Mini Thermocouple Connectors—800° F Max. Temp.







								Screw-Terminal Wire Connection

								K	1	20	7/8", 1 1/8"	1/2, 3/4	Red	Plastic	Nickel	Yes	Knockout Adapter	3869K102	00000


								Female Round-Pin Thermocouple Connectors—400° F Max. Temp.







												Screw-Terminal Wire Connection

												K	1	14	1 1/8"	3/4	Yellow	Plastic	Nickel	Yes	—	3869K67	00000


												Female Round-Pin Thermocouple Connectors—800° F Max. Temp.







																Screw-Terminal Wire Connection

																K	1	14	1 1/8"	3/4	Red	Plastic	Nickel	Yes	—	3869K106	00000


																Female Round-Pin Thermocouple Connectors—1,000° F Max. Temp.







																				Screw-Terminal Wire Connection

																				K	1	14	1 1/8"	3/4	White	Ceramic	Nickel	Yes	—	3869K107	00000

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

				K	-15 to 220	10	24	0.17"	PVC	PVC	220	3873K212	000000


				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




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

						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




								Round-Pin Male × Round-Pin Female Connector

								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


								Coiled Cable—Stranded Wire







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

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




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

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

Conduit-Mount Thermocouple Connector Strips


Flat-Pin Strip	Round-Pin Strip

Already mounted in a conduit box, these connector strips save you the effort of modifying a panel for installation. With six connections on each strip, you can plug in multiple thermocouples to monitor temperature at different points in your process. The sockets are numbered to help you identify thermocouples and keep your wires organized.

To install, remove the connector strip from the conduit box, then pull your wiring through. Attach the box to your conduit, wire up the back of the connector strip, and reattach it to the conduit box. Then just plug your thermocouples into the strip.

				Body				Material		Conduit Connection
	Thermocouple Type	No. of Connections	For Max. Wire Ga.	Lg.	Wd.	Ht.	Color	Body	Contact	Pipe Size	Thread Type	Gender		Each
Female Flat-Pin Mini Thermocouple Connectors—400° F Max. Temp.







				Screw-Terminal Wire Connection

				K	6	24	4 9/16"	2 13/16"	2 1/4"	Yellow	Aluminum	Nickel	3/4	NPT	Female	5974N12	000000


				Female Round-Pin Thermocouple Connectors—400° F Max. Temp.







								Screw-Terminal Wire Connection

								K	6	20	4 9/16"	2 13/16"	2 1/4"	Yellow	Aluminum	Nickel	3/4	NPT	Female	5974N14	000000

Thermocouple Transmitters

Convert thermocouple probe signals to a 4-20 mA signal for use with instrumentation, data loggers, and controllers.

Head Mount


Transmitter Shown Installed (Connection Head and Probe Not Included)

	Dia.	Dp.	Output Analog Signal	Voltage, V DC	Housing Material	For Max. Wire Ga.		Each
For Type K Thermocouples



	32 to 572	1 11/16"	13/16"	4 mA to 20 mA	12 to 24	Plastic	26	38875K11	0000000


	32 to 1,112	1 11/16"	13/16"	4 mA to 20 mA	12 to 24	Plastic	26	38875K82	00000
	32 to 2,192	1 11/16"	13/16"	4 mA to 20 mA	12 to 24	Plastic	26	38875K74	00000

Panel Mount

			For Panel Cutout
	Temp. Range, ° F	For DIN Panel Cutout Size	Ht.	Wd.	Ht.	Wd.	Dp.	Output Analog Signal	Voltage (Phase)	Freq., Hz	Housing Material	Display Type	Resolution	For Max. Wire Ga.		Each
For Type K Thermocouples



		-58 to 1,999	1/8	1 3/4"	3 5/8"	1 7/8"	3 7/8"	6 1/16"	4 mA to 20 mA	120V AC, 240V AC (Single)	60	Aluminum	LCD	1	26	38535K42	0000000

Threaded Thermocouple Connectors


Flat-Pin Connector	Round-Pin Connector

Thread these connectors into a hole for an easy way to plug in a thermocouple. With the wire leads in the back, connect them to controllers, thermometers, and other temperature reading devices.

				Process			Wire Lead		Material
	Thermocouple Type	No. of Connections	Temp. Range, ° F	Pipe Size	Thread Type	Gender	AWG	Lg.	Body	Cable	Cable Lg., ft.	Max. Cable Temp., ° F		Each
Female Flat-Pin Mini Thermocouple Connectors







				Wire Lead Connection

				K	1	-40 to 390	1/2	NPT	Male	24	2"	Stainless Steel	FEP	10	400	3877K22	0000000


				Female Round-Pin Thermocouple Connectors







								Wire Lead Connection

								K	1	-40 to 390	3/4	NPT	Male	24	2"	Stainless Steel	FEP	10	400	3877K25	000000

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

				K	32 to 350	5	24	0.02"	PTFE	Stainless Steel	2,300	350	5787N14	000000


				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




						Round-Pin Male × Round-Pin Female Connector

						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