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 Length Maximum Operating Temperature Screened/Unscreened Core Strands Insulation Material Cable Shape Number of Strands American Wire Gauge Series Standards Met Voltage Rating
RS庫存編號 236-3836
BrandRS PRO
HK$304.71
毎卷:25 米
Reel(s)
K 25m +400°C Unscreened 1/0.315mm Fibreglass Multicore 1 - - - -
RS庫存編號 236-3820
BrandRS PRO
HK$246.52
毎卷:25 米
Reel(s)
K 25m +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
RS庫存編號 363-0389
BrandRS PRO
HK$349.08
單位
K 25m +250°C Unscreened 1/0.2mm PTFE Twin Twisted 1 - - - -
RS庫存編號 219-4573
BrandRS PRO
HK$485.86
毎卷:100 米
Reel(s)
K 100m +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
RS庫存編號 814-0077
BrandRS PRO
HK$1,270.98
單位
K 100m 105°C Screened 7/0.2mm PVC Twisted 7 - - - -
RS庫存編號 814-0068
BrandRS PRO
HK$264.11
單位
K 25m +105°C Screened 7/0.2mm PVC Twisted 7 - - - -
RS庫存編號 814-0070
BrandRS PRO
HK$2,853.63
單位
K 200m 105°C Screened 7/0.2mm PVC Twisted 7 - - - -
RS庫存編號 151-209
BrandRS PRO
HK$106.93
毎卷:10 米
Reel(s)
- - - - - - - - - - - -
RS庫存編號 814-0033
BrandRS PRO
HK$256.03
單位
K 50m 260°C - 1/0.3mm PFA Teflon Twisted 1 - - - -
RS庫存編號 236-3864
BrandRS PRO
HK$322.07
毎卷:25 米
Reel(s)
K 25m +105°C Screened 7/0.2mm PVC Multicore 7 - - - -
RS庫存編號 814-0036
BrandRS PRO
HK$527.35
單位
K 100m 260°C - 1/0.3mm PFA Teflon Twisted 1 - - - -
RS庫存編號 814-0042
BrandRS PRO
HK$433.58
單位
K 100m 260°C - 1/0.2mm PFA Teflon Twisted 1 - - - -
RS庫存編號 814-0049
BrandRS PRO
HK$216.67
單位
K 50m 260°C - 1/0.2mm PFA Teflon Twisted 1 - - - -
RS庫存編號 814-0030
BrandRS PRO
HK$108.53
單位
K 25m +260°C - 1/0.2mm PFA Teflon Twisted 1 - - - -
RS庫存編號 814-0024
BrandRS PRO
HK$140.71
單位
K 25m +260°C - 1/0.3mm PFA Teflon Twisted 1 - - - -
RS庫存編號 363-0402
BrandRS PRO
HK$235.97
單位
T 25m +250°C Unscreened 1/0.2mm PTFE Single Core 1 - - - -
RS庫存編號 236-3842
BrandRS PRO
HK$656.74
毎卷:25 米
Reel(s)
K 25m +400°C Screened 7/0.2mm Fibreglass Multicore 7 - - - -
RS庫存編號 158-979
BrandRS PRO
HK$466.78
毎卷:10 米
Reel(s)
- - - - - - - - - - - -
RS庫存編號 236-3870
BrandRS PRO
HK$171.96
毎卷:25 米
Reel(s)
T 25m +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
RS庫存編號 779-9713
BrandRS PRO
HK$202.03
單位
- - - - - - - - - - - -