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 Prix 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
N° de stock RS 236-3820
MarqueRS PRO
44,47 €
1 Reel of 25 Metre(s)
Bobine(s)
K - 25m - +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
N° de stock RS 236-3921
MarqueRS PRO
36,55 €
1 Reel of 25 Metre(s)
Bobine(s)
J - 25m - +105°C Screened 7/0.2mm PVC Multicore 7 - - - -
N° de stock RS 236-3836
MarqueRS PRO
38,58 €
1 Reel of 25 Metre(s)
Bobine(s)
K - 25m - +400°C Unscreened 1/0.315mm Fibreglass Multicore 1 - - - -
N° de stock RS 151-209
MarqueRS PRO
21,57 €
1 Reel of 10 Metre(s)
Bobine(s)
K 1 10m -75°C +480°C Unscreened 1/0.3 mm Fibreglass Single Core 1 0.3 mm - - BS 1843, RoHS Compliant
N° de stock RS 768-6585
MarqueRS PRO
29,94 €
Each
Unité
K - 5m - +220°C - 7/0.2mm PVC Multicore 7 - - - IEC, RoHS Compliant
N° de stock RS 768-6581
MarqueRS PRO
22,57 €
Each
Unité
K - 2m - +220°C - 7/0.2mm PVC Multicore 7 - - - IEC, RoHS Compliant
N° de stock RS 236-3937
MarqueRS PRO
89,61 €
1 Reel of 25 Metre(s)
Bobine(s)
J - 25m - +400°C Screened 7/0.2mm Fibreglass Multicore 7 - - - -
N° de stock RS 363-0418
MarqueRS PRO
44,90 €
Each
Unité
T - 25m - +250°C Unscreened 1/0.315mm PTFE Flat Pair 1 - - - -
N° de stock RS 219-4551
MarqueRS PRO
21,96 €
1 Reel of 25 Metre(s)
Bobine(s)
K - 25m - +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
N° de stock RS 407-1523
MarqueRS PRO
114,94 €
1 Reel of 20 Metre(s)
Bobine(s)
K - 20m - +250°C Unscreened - Kapton Single Core - - - - RoHS Compliant
N° de stock RS 827-5637
MarqueRS PRO
39,16 €
Each
Unité
N - 25m - +105°C - 7/0.2mm PVC Flat Pair 7 - - - -
N° de stock RS 363-0389
MarqueRS PRO
28,71 €
Each
Unité
K - 25m - +250°C Unscreened 1/0.2mm PTFE Twin Twisted 1 - - - -
N° de stock RS 827-5631
MarqueRS PRO
73,38 €
Each
Unité
N - 50m - +105°C - 7/0.2mm PVC Flat Pair 7 - - - -
N° de stock RS 236-3959
MarqueRS PRO
37,93 €
1 Reel of 25 Metre(s)
Bobine(s)
K - 25m - +105°C Screened 7/0.2mm PVC Multicore 7 - - - -
N° de stock RS 611-8090
MarqueRS PRO
139,63 €
1 Reel of 25 Metre(s)
Bobine(s)
- - 25m - +260°C Screened 7/0.2mm PFA Multicore 7 - - - -
N° de stock RS 219-4668
MarqueRS PRO
15,41 €
1 Reel of 10 Metre(s)
Bobine(s)
N - 10m - +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
N° de stock RS 611-7889
MarqueRS PRO
125,45 €
1 Reel of 100 Metre(s)
Bobine(s)
K - 100m - +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
N° de stock RS 611-8056
MarqueRS PRO
85,37 €
1 Reel of 50 Metre(s)
Bobine(s)
J - 50m - +260°C Unscreened 7/0.2mm PFA Multicore 7 - - - -
N° de stock RS 433-4212
MarqueRS PRO
80,54 €
1 Reel of 25 Metre(s)
Bobine(s)
S - 25m - +105°C Unscreened - PVC/Glass Fibre Single Core - - - - RoHS Compliant
N° de stock RS 611-8006
MarqueRS PRO
125,44 €
1 Reel of 50 Metre(s)
Bobine(s)
K - 50m - +260°C Unscreened 7/0.2mm PFA Multicore 7 - - - -