Thermocouple Wire for Types K, J, T, E and N
Thermocouple and extension wire
Thermocouple wire uses a defined pair of dissimilar conductor alloys to generate a temperature-dependent voltage. The thermocouple type, conductor materials, wire size, insulation and service environment must be specified; “thermocouple wire” alone is not a complete purchase description.
Common thermocouple alloy pairs
- Type K: Chromel and Alumel;
- Type J: iron and Constantan;
- Type T: copper and Constantan;
- Type E: Chromel and Constantan;
- Type N: Nicrosil and Nisil.
The permitted temperature range and accuracy depend on the thermocouple type, conductor size, insulation, atmosphere and governing specification. These details must be confirmed for the application.
Bare wire, insulated wire and extension wire
State whether bare thermocouple-alloy wire, insulated thermocouple wire, extension wire or compensating wire is required. Include the conductor pair and polarity, solid or stranded construction, AWG or diameter, insulation and jacket materials, temperature rating, calibration or tolerance class, spool length, quantity and documentation.
Related thermocouple alloys
See the existing pages for Alumel wire and strip, Chromel wire and Constantan wire and strip.
Request a U.S. quote
Evek LLC serves customers throughout the United States. Typical delivery is 2–3 weeks, subject to type, construction, insulation, quantity and availability.
Contact Evek LLC with the thermocouple type, wire construction, size, insulation, quantity and delivery ZIP code.