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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Beskrivning Pris 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
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T - 25m - +260°C - 1/0.3mm PFA Teflon Flat Pair 1 - - - -
RS-artikelnummer 363-0389
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296,86 kr
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K - 25m - +250°C Unscreened 1/0.2mm PTFE Twin Twisted 1 - - - -
RS-artikelnummer 827-6066
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188,50 kr
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K - 25m - +350°C - 1/0.2mm Glass Fibre Flat Pair 1 - - - -
RS-artikelnummer 611-8012
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520,00 kr
1 Reel of 25 Metre(s)
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K - 25m - +250°C Unscreened 1/0.315mm PFA Multicore 1 - - - -
RS-artikelnummer 236-3820
VarumärkeRS PRO
459,82 kr
1 Reel of 25 Metre(s)
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K - 25m - +105°C Unscreened 7/0.2mm PVC Multicore 7 - - - -
RS-artikelnummer 236-3864
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487,84 kr
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K - 25m - +105°C Screened 7/0.2mm PVC Multicore 7 - - - -
RS-artikelnummer 779-9710
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327,05 kr
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- - - - - - - - - - - - - -
RS-artikelnummer 827-5974
VarumärkeRS PRO
492,68 kr
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T - 50m - +260°C - 1/0.3mm PFA Teflon Flat Pair 1 - - - -
RS-artikelnummer 814-0049
VarumärkeRS PRO
217,86 kr
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K - 50m - 260°C - 1/0.2mm PFA Teflon Twisted 1 - - - -
RS-artikelnummer 814-0068
VarumärkeRS PRO
420,84 kr
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K - 25m - +105°C Screened 7/0.2mm PVC Twisted 7 - - - -
RS-artikelnummer 827-5634
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510,18 kr
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K - 50m - +105°C - 13/0.2mm PVC Flat Pair 13 - - - -
RS-artikelnummer 827-5726
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1 329,00 kr
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K - 100m - +260°C - 1/0.3mm PFA Teflon Flat Pair 1 - - - -
RS-artikelnummer 814-0070
VarumärkeRS PRO
2 776,37 kr
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K - 200m - 105°C Screened 7/0.2mm PVC Twisted 7 - - - -
RS-artikelnummer 827-5918
VarumärkeRS PRO
135,87 kr
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J - 25m - +260°C - 1/0.2mm PFA Teflon Twisted 1 - - - -
RS-artikelnummer 611-7952
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632,60 kr
1 Reel of 100 Metre(s)
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T - 100m - +260°C Unscreened 1/0.2mm PFA Multicore 1 - - - -
RS-artikelnummer 827-5915
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K - 50m - +200°C - 7/0.2mm Silicone Rubber Twisted 7 - - - -
RS-artikelnummer 814-0077
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1 632,89 kr
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K - 100m - 105°C Screened 7/0.2mm PVC Twisted 7 - - - -
RS-artikelnummer 827-5794
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1 558,97 kr
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T - 50m - +260°C - 1/0.3mm PTFE Flat Pair 1 - - - -
RS-artikelnummer 814-0030
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126,87 kr
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K - 25m - +260°C - 1/0.2mm PFA Teflon Twisted 1 - - - -
RS-artikelnummer 814-0042
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512,24 kr
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K - 100m - 260°C - 1/0.2mm PFA Teflon Twisted 1 - - - -