Thermocouple & Extension Wire

Thermocouple extension wire is a hardwearing type of wire used for connecting a thermocouple probe to a readout instrument. Thermocouples are sensors that measure temperature across a wide range of applications in most industrial environments.

What is thermocouple extension wire made from?

Thermocouple extension wire is made from a lower grade of wire than that used in thermocouple probes, so is more economical when used at length. It's typically made with colour-coded (usually PVC) insulation applied to each wire leg. The negative lead is usually insulated in red and the positive lead is the colour of the thermocouple. For added durability and flexibility, a metal overbraid is applied to the insulated wire. For PVC wire this is a tinned copper overbraid, and for PFA it's stainless steel. This added layer protects the wire against abrasion.

Why use thermocouple extension wire?

Thermocouple extension wire is only used to extend the distance between a thermocouple probe and the instrument reading the signal. Thermocouple grade wire is used to make the sensing point of the thermocouple. Extension wire has a lower ambient temperature limit and can't be used in a thermocouple's sensing point.


...
Read more Read less

Filters

Viewing 1 - 20 of 351 products
Results per page
Description Price Thermocouple Type Length Maximum Operating Temperature Screened/Unscreened Core Strands Insulation Material Cable Shape Number of Strands American Wire Gauge Series Standards Met Voltage Rating
RS Stock No. 363-0389
BrandRS PRO
MYR213.62
Each
units
K 25m +250°C Unscreened 1/0.2mm PTFE Twin Twisted 1 - - - -
RS Stock No. 768-6585
BrandRS PRO
MYR145.30
Each
units
K 5m +220°C - 7/0.2mm PVC Multicore 7 - - IEC, RoHS Compliant -
RS Stock No. 236-3836
BrandRS PRO
MYR126.11
1 Reel of 25 Metre(s)
Reel(s)
K 25m +400°C Unscreened 1/0.315mm Fibreglass Multicore 1 - - - -
RS Stock No. 151-209
BrandRS PRO
MYR56.71
1 Reel of 10 Metre(s)
Reel(s)
- - - - - - - - - - - -
RS Stock No. 611-7946
BrandRS PRO
MYR283.24
1 Reel of 100 Metre(s)
Reel(s)
K 100m +260°C Unscreened 1/0.2mm PFA Multicore 1 - - - -
RS Stock No. 363-0418
BrandRS PRO
MYR344.17
Each
units
T 25m +250°C Unscreened 1/0.315mm PTFE Flat Pair 1 - - - -
RS Stock No. 492-9753
BrandRS PRO
MYR84.17
Each
units
RTD 10m +105°C Screened 7/0.2mm PVC Multicore 7 - - - -
RS Stock No. 236-3820
BrandRS PRO
MYR150.86
1 Reel of 25 Metre(s)
Reel(s)
K 25m +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
RS Stock No. 611-7889
BrandRS PRO
MYR550.26
1 Reel of 100 Metre(s)
Reel(s)
K 100m +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
RS Stock No. 219-4589
BrandRS PRO
MYR100.77
1 Reel of 10 Metre(s)
Reel(s)
K 10m +400°C Unscreened 1/0.315mm Fibreglass Multicore 1 - - - -
RS Stock No. 814-0092
BrandRS PRO
MYR231.54
Each
units
T 100m 260°C - 1/0.3mm PFA Teflon Twisted 1 - - - -
RS Stock No. 814-0099
BrandRS PRO
MYR93.23
Each
units
T 50m 260°C - 1/0.3mm PFA Teflon Twisted 1 - - - -
RS Stock No. 814-0080
BrandRS PRO
MYR55.96
Each
units
T 25m +260°C - 1/0.3mm PFA Teflon Twisted 1 - - - -
RS Stock No. 236-3937
BrandRS PRO
MYR271.02
1 Reel of 25 Metre(s)
Reel(s)
J 25m +400°C Screened 7/0.2mm Fibreglass Multicore 7 - - - -
RS Stock No. 407-1573
BrandRS PRO
MYR1,490.12
1 Reel of 20 Metre(s)
Reel(s)
K 20m +1200°C Unscreened - Ceramic Fibre Single Core - - - - -
RS Stock No. 290-4976
BrandRS PRO
MYR1,178.87
Each
units
RTD 25m +260°C Screened 7/0.2mm PTFE Multicore 7 - - - -
RS Stock No. 827-5707
BrandRS PRO
MYR254.89
Each
units
K 25m +350°C - 1/0.3mm Glass Fibre Flat Pair 1 - - - -
RS Stock No. 433-4212
BrandRS PRO
MYR383.36
1 Reel of 25 Metre(s)
Reel(s)
S 25m +105°C Unscreened - PVC/Glass Fibre Single Core - - - RoHS Compliant -
RS Stock No. 779-9713
BrandRS PRO
MYR106.02
Each
units
- - - - - - - - - - - -
RS Stock No. 236-3842
BrandRS PRO
MYR397.42
1 Reel of 25 Metre(s)
Reel(s)
K 25m +400°C Screened 7/0.2mm Fibreglass Multicore 7 - - - -