Type K Thermocouple Wire

We have a large from stock range of Type K thermocouple wire with PVC, PFA, Fiberglass, Silicone Rubber and Kapton® insulation. Delivery is available Next Day if required and all our Type K thermocouple wire to is ANSI standard color coded and to ANSI tolerances (IEC spec also available). Single and multipair wires are available.
 Type K Thermocouple Wire

K Type Thermocouple Wire - Single Pairs

Type K Thermocouple Wire
PVC Insulated

PVC type k thermocouple wiresType K PVC insulated wires in a range of construction styles. Screened and Armoured wires are available.

Type K Thermocouple Wire
PFA Insulated

PFA type k thermocouple wiresType K PFA insulated wires in a range of construction styles. Screened wires are available.

Type K Thermocouple Wire Fiberglass Insulated

Fibreglass type k thermocouple wiresType K Fiberglass insulated wires in a range of construction style. Avalaible in Standard and High Temperature Fiberglass and in Ceramic Fiber.

Type K Thermocouple Wire Silicone Rubber Insulated

Silicone type k thermocouple wiresType K flame retardant Silicone Rubber insulation in a range of construction styles.

Type K Thermocouple Wire
Kapton® Insulated

Kapton type k thermocouple wiresType K Kapton® insulated wires.

Type K Thermocouple Wire - Multipairs

Type K Multipair Wire
PVC Insulated

type k thermocouple PVC multipair wiresType K PVC multipair wire from 2 to 50 pairs. Armoured or Non Armoured versions available.

Type K Multipair Wire PFA Insulated

type k thermocouple PFA multipair wiresType K PFA multipair wire from 2 to 12 pairs.

Type K Multipair Wire Fiberglass Insulated

type k thermocouple fibreglass multipair wiresType K Fiberglass multipair wire from 2 to 12 pairs.

What Color is Type K Thermocouple Wire?

IEC 60584-3 provides tolerances and identification for a common international system for thermocouple wire identification and tolerances based essentially on thermoelectric emf as opposed to a datum of the emf of the thermo elements against platinum. Tolerances are defined as the maximum allowable deviation in microvolts, caused by the introduction of extension or compensating extension wire into the circuit. Color codes and tolerances are well established in the United States and have been in use as a national standard for years. In other parts of the world, there are alternative color code systems and tolerances, either in use, or in the process of being implemented. One such color code system is that established by the IEC.

In the United States, color codes and tolerances are defined in ANSI 96.1 (1982) and ASTM E-230. Extension wire and compensating extension wire is indicated with the letter “X” after the thermocouple type per these standards. The color code for thermocouple grade wire includes a brown overall jacket whereas the color code for thermocouple extension wire typically includes an overall jacket in the color of the positive wire. For some insulations, colors may appear as a stripe or trace strand. High temperature braided insulation is not normally color coded.

The table below shows the color coding adopted by the ASTM and IEC.

ANSI MC96.1 United StatesInternational Color Code
to IEC 60584-3
Redundant national colors
Thermocouple Grade Extension Grade BS 1843 DIN 43714
ANSI MC96.1 Type K ThermocoupleANSI MC96.1 Type K ExtensionIEC60584-3 Type K ThermocoupleBS1843 Type K ThermocoupleDIN 43714 Type K Thermocouple


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