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. 827-5987
BrandRS PRO
HK$527.84
Each
units
T 2 50m -75°C +260°C - 1/0.508 mm PFA Teflon Flat Pair 1 0.508 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 827-6034
BrandRS PRO
HK$446.30
Each
units
N 2 25m -75°C +260°C - 7/0.2 mm PTFE Twisted 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 827-5946
BrandRS PRO
HK$120.41
Each
units
T 2 50m -75°C +260°C - 1/0.315 mm PFA Teflon Twisted 1 0.315 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 827-5867
BrandRS PRO
HK$1,136.40
Each
units
K 2 50m -60°C +350°C - 7/0.2 mm Glass Fibre Flat Pair 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 827-5653
BrandRS PRO
HK$289.30
Each
units
T 2 50m -10°C +105°C - 7/0.2 mm PVC Flat Pair 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 410-6584
Mfr. Part No.R17-1102.1
BrandReckmann
HK$520.84
Each
units
K 2 50m - +70°C Unscreened - PVC Twisted Pair - - - - -
RS Stock No. 219-4703
BrandRS PRO
HK$82.25
1 Reel of 10 Metre(s)
Reel(s)
T 2 10m -10°C +105°C Unscreened 7/0.2 mm PVC Multicore 7 0.2 mm - - BS 1843, RoHS Compliant
RS Stock No. 768-6623
BrandRS PRO
HK$266.11
Each
units
N 2 10m -10°C +220°C - 7/0.2 mm PVC Multicore 7 0.2 mm - - IEC, RoHS Compliant
RS Stock No. 814-0096
BrandRS PRO
HK$64.30
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. 827-5603
BrandRS PRO
HK$263.12
Each
units
K 2 50m -10°C +105°C - 7/0.2 mm PVC Flat Pair 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 611-7952
BrandRS PRO
HK$380.00
1 Reel of 100 Metre(s)
Reel(s)
T 2 100m -75°C +260°C Unscreened 1/0.2 mm PFA Multicore 1 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 827-5659
BrandRS PRO
HK$263.10
Each
units
R/S 2 50m -10°C +105°C - 7/0.2 mm PVC Flat Pair 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 814-0092
BrandRS PRO
HK$295.38
Each
units
T 2 100m -75°C 260°C - 1/0.3 mm PFA Teflon Twisted 1 0.3 mm - - ANSI MC96.1, RoHS Compliant
RS Stock No. 236-3892
BrandRS PRO
HK$705.57
1 Reel of 25 Metre(s)
Reel(s)
T 2 25m -75°C +250°C Unscreened 7/0.2 mm PTFE Flat 7 0.2 mm - - BS 4937 Part 30 1993 IEC 584-3, RoHS Compliant
RS Stock No. 814-0086
BrandRS PRO
HK$654.75
Each
units
T 2 200m -10°C 105°C - 7/0.2 mm PVC Flat Pair 7 0.2 mm - - ANSI MC96.1, RoHS Compliant
RS Stock No. 827-5760
BrandRS PRO
HK$133.17
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. 827-5757
BrandRS PRO
HK$230.54
Each
units
K 2 10m -75°C +260°C - 7/0.2 mm PFA Teflon Twin Twisted 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS Stock No. 2509193842
Mfr. Part No.1102
HK$3,944.92
1 Reel of 152 Metre(s)
Reel(s)
- - - - - - - - - - - - - -
RS Stock No. 2509193814
Mfr. Part No.1016
HK$2,025.10
1 Reel of 152 Metre(s)
Reel(s)
- - - - - - - - - - - - - -