Type J Thermocouple Wire
We have a large range of Type J (iron / constantan) thermocouple wire available from stock with PVC, PFA, Fiberglass, Silicone Rubber or Kapton® insulation. Delivery is available Next Day if required and all of our Type J thermocouple wire is to ANSI standard color code and to ANSI tolerances (IEC spec is also available). Single and multipair cables are available.
J Type Thermocouple Wire - Single Pairs
Type J Thermocouple Wire
PVC Insulated
Type J PVC insulated wires in a range of construction styles. Screened and Armoured wires are available.
Type J Thermocouple Wire
PFA Insulated
Type J PFA insulated wires in a range of construction styles. Screened wires are available.
Type J Thermocouple Wire Fiberglass Insulated
Type J Fiberglass insulated wires in a range of construction style. Avalaible in Standard and High Temperature Fiberglass and in Ceramic Fiber.Type J Thermocouple Wire Silicone Rubber Insulated
Type J flame retardant Silicone Rubber insulation in a range of construction styles.Type J Thermocouple Wire
Kapton® Insulated
Type J Kapton® insulated wires.
Type J Thermocouple Wire - Multipairs
Type J Multipair Wire
PVC Insulated
Type J PVC multipair wire from 2 to 50 pairs. Armoured or Non Armoured versions available.
Type J Multipair Wire PFA Insulated
Type J PFA multipair wire from 2 to 12 pairs.Type J Multipair Wire Fiberglass Insulated
Type J Fiberglass multipair wire from 2 to 12 pairs.What Color is Type J 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 States | International
Color Code to IEC 60584-3 |
Redundant national colors | ||
---|---|---|---|---|
Thermocouple Grade | Extension Grade | BS 1843 | DIN 43714 | |