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.


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Description Price Thermocouple Type Number of Cores Length Minimum Operating Temperature Maximum Operating Temperature Screened/Unscreened Core Strands Insulation Material Cable Shape Number of Strands Size of Strands American Wire Gauge Series Standards Met
RS Stock No. 814-0106
BrandRS PRO
TWD433.00
Each
units
T 2 50m -75°C 260°C - 1/0.2 mm PFA Teflon Twisted 1 0.2 mm - - ANSI MC96.1, RoHS Compliant
RS Stock No. 814-0109
BrandRS PRO
TWD1,116.00
Each
units
T 2 100m -75°C 260°C - 1/0.2 mm PFA Teflon Twisted 1 0.2 mm - - ANSI MC96.1, RoHS Compliant
RS Stock No. 814-0096
BrandRS PRO
TWD308.00
Each
units
T 2 25m -75°C +260°C - 1/0.2 mm PFA Teflon Twisted 1 0.2 mm - - ANSI MC96.1, RoHS Compliant
RS Stock No. 151-209
BrandRS PRO
TWD434.00
1 Reel of 10 Metre(s)
Reel(s)
K 1 10m -75°C +480°C Unscreened 1/0.3 mm Fibreglass Single Core 1 0.3 mm - - BS 1843, RoHS Compliant
RS Stock No. 779-9713
BrandRS PRO
TWD794.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 611-7889
BrandRS PRO
TWD4,060.00
1 Reel of 100 Metre(s)
Reel(s)
K 2 100m -10°C +105°C Unscreened 7/0.2 mm PVC Multicore 7 0.2 mm - - BS 4937 Part 30 1993 IEC 584-3, RoHS Compliant
RS Stock No. 219-4573
BrandRS PRO
TWD2,691.00
1 Reel of 100 Metre(s)
Reel(s)
K 2 100m -10°C +105°C Unscreened 7/0.2 mm PVC Multicore 7 0.2 mm - - BS 1843, RoHS Compliant
RS Stock No. 611-8040
BrandRS PRO
TWD3,116.00
1 Reel of 50 Metre(s)
Reel(s)
T 2 50m -75°C +260°C Unscreened 7/0.2 mm PFA Multicore 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 407-1466
BrandRS PRO
TWD2,636.00
1 Reel of 25 Metre(s)
Reel(s)
RTD 3 25m -10°C +80°C Screened 7/0.2 mm PVC Multicore 7 0.2 mm - - -
RS Stock No. 219-4595
BrandRS PRO
TWD1,053.00
1 Reel of 10 Metre(s)
Reel(s)
K 2 10m -60°C +400°C Unscreened 7/0.2 mm Fibreglass Multicore 7 0.2 mm - - BS 1843, RoHS Compliant
RS Stock No. 827-6066
BrandRS PRO
TWD1,037.00
Each
units
K 2 25m -60°C +350°C - 1/0.2 mm Glass Fibre Flat Pair 1 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 827-6047
BrandRS PRO
TWD4,892.00
Each
units
K 2 50m -75°C +260°C - 1/0.315 mm PTFE Flat Pair 1 0.315 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 236-3842
BrandRS PRO
TWD2,585.00
1 Reel of 25 Metre(s)
Reel(s)
K 2 25m -60°C +400°C Screened 7/0.2 mm Fibreglass Multicore 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 407-1488
BrandRS PRO
TWD4,434.00
1 Reel of 25 Metre(s)
Reel(s)
K 1 25m - +200°C Unscreened 7/0.2 mm PTFE Single Core 7 0.2 mm - - RoHS Compliant
RS Stock No. 236-3820
BrandRS PRO
TWD897.00
1 Reel of 25 Metre(s)
Reel(s)
K 2 25m -10°C +105°C Unscreened 7/0.2 mm PVC Multicore 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 185-3019
BrandRS PRO
TWD323.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 611-7980
BrandRS PRO
TWD2,089.00
1 Reel of 25 Metre(s)
Reel(s)
K 2 25m -75°C +260°C Unscreened 7/0.2 mm PFA Multicore 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 827-5760
BrandRS PRO
TWD544.00
Each
units
N 2 10m -75°C +260°C - 1/0.2 mm PFA Teflon Twin Twisted 1 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 779-9707
BrandRS PRO
TWD1,396.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 185-3020
BrandRS PRO
TWD267.00
Each
units
- - - - - - - - - - - - - -