Thermocouple Wire & Cable

When two wires of dissimilar metals are joined at both ends and one of the ends is heated, a continuous current flows in a thermoelectric circuit. All dissimilar metals exhibit this effect. The most common combinations of two metals are listed in the thermocouple specification table below, and are referred to as thermocouples. Common thermocouple types are: E, J, K, and T. Thermocouple wires are also used in thermocouple cable to manufacture thermocouple probes utilizing either soft insulations like Teflon® or fiberglass or mineral insulated cables with metal sheaths such as stainless steel or nickel alloys.
Desc

3 Items

per page
View as Grid List
Desc

3 Items

per page
View as Grid List

Common Beneficial Features of Thermocouple Wires and Cables

The common beneficiary features of the thermocouple cables or thermocouple wires are detailed as follows:

  • Thermocouple wires are available in vast temperature ranges. Depending on the type of wire, insulation, calibration temperature, and the tolerance range varies.
  • For example, Type K thermocouple wire offers a range of -328 to 2282° F temperature range, or 32- 392°F for extension wire. Wire is also offered in Standard or Special limits of error as indicated in the table below.
  • Thermocouple cables are color-coded according to industrial standards to identify the capabilities of the cable. There are differences in color coding based on International standards.
  • Therm-x stocks thermocouple wire in standard AWG from 20-30 AWG
  • Standard insulations are Fiberglass, Teflon and PVC
  • Stainless steel and other overbraid insulations are available over soft wire for protection against abrasion

Thermocouple Wire Specifications

The below given chart will help you understand different thermocouple wires and their properties better. This information will be of great help in your selection process.

logo Thermocouple Wire Specifications
T/C Type Single color Ansi Color Coding
Overall Extension
Overall thermocouple Conductor Alloys Temperature Range°F(°C)
Thermocouple Grade
Extension Grade
Tolerance(standard)
/ whichever is Greater
Tolerance(Special)
/ whichever is Greater
E Purple
Red
Purple Brown EP/EN Chromel/Constantan -328 to 1652
(-200 to 900)
32 to 392
(0 to 200)
+-1.7 deg C
or +-0.5%
+-1.0 deg C
or +-0.4%
J White
Red
Black Brown JP/JN Iron/Constantan 32 to 1382
(0 to 750)
32 to 392
(0 to 200)
+-2.2 deg C
or +-0.75%
+-1.1 deg C
or +-0.4%
K Yellow
Red
Yellow Brown KP/KN Chromel/Alumel -328 to 2282
(-200 to 1250)
32 to 392
(0 to 200)
+-2.2 deg C
or +-0.75%
+-1.1 deg C
or +-0.4%
N Orange
Red
Orange Brown NP/NN Nicrosil/Nisil -450 to 2372
(-270 to 1300)
32 to 392
(0 to 200)
+-2.2 deg C
or +-0.75%
(2% below 0 deg C)
+-1.1 deg C
or +-0.4%
T Blue
Red
Blue Brown TP/TN Copper/Constantan -328 to 662
(-270 to 350)
32 to 392
(0 to 200)
+-2.2 deg C
or +-0.75%
(1.5% below 0 deg C)
+-0.5 deg C
or +-0.4%
B Grey
Red
Grey None BP/BN Platinum 30% Rhodium
Platinum 6% Rhodium
32 to 3092
(0 to 1700)
32 to 212
(0 to 100)
+-3.7 deg C
or +-0.5% over 800 deg C
NOT ESTABLISHED
C White
Red
White
Red Trace
None CP/CN Tungsten 5% Rhenium
Tungsten 26% Rhenium
32 to 4208
(0 to 2320)
32 to 1600
(0 to 870)
+-4.5 deg C to or 425 deg C
1% to 2320 deg C
NOT ESTABLISHED
R/S Black
Red
Green None RP/RN R=Platinum/13% Rhodium
S=10% Rhodium/Pure Platinum
32 to 2462
(0 to 1450)
32 to 300
(0 to 150)
1.5 deg C or .25% .6 deg C or .1%

Application Areas of Thermocouple Wires and Cables

Thermocouples wires and cables used in applications where thermocouples are used to extend the signal to the controller or readout instrument. Following are the areas of application for our thermocouple wires

  • Extension to Thermocouple probes
  • Thermocouples for Lab or industrial use
  • Wiring to instrumentation accepting thermocouple signals

  • 510 606-1012

    Round-the-clock free hotline (24/7)
  • Return & Exchange

    You can return or exchange the item within 14 days.
  • Satisfaction Guarantee

    We are committed to your satisfaction with every order.
To Top