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Thermocouple Wire and Cable

We have over 2,000,000 metres of Thermocouple Wire and Cable available in PVC, PFA, Fiberglass insulation and more


We have large stocks of Thermocouple Wire and Cable in all thermocouple types (K, J, T, N, R/S, E etc.) in PVC, Fibreglass, PFA, Silicone Rubber, XLPE and Ceramic Fibre insulation. Our thermocouple cables are ANSI standard color coded and to ANSI tolerances, although other colour codes (such as IEC 60584.3) are also available. We offer stranded or solid wires in a wide variety of constructions from simple bellwire to screened and armoured multipair types in complex configurations, supplied on any spool length required. Thermocouple wires are also available as bare solid conductors and an extensive range of RTD (Resistance Thermometer) Wire is also available in a wide variety of constructions.

Single Pair Insulated Thermocouple Cables

Heat Resistant
PVC Insulated
HR PVC Thermocouple CablesA wide range of HR PVC insulated cables. constructions such as 'Flat Twin', Twisted', Screened and Armoured cables are available. Flame Retardant
PVC Insulated HR PVC Thermocouple CablesFR PVC in Screened and Armoured constructions. XLPE Low Smoke
and Fume
XLPE Thermocouple CablesIncludes XLPE compound on the cores and LS0H material on the bedding and/or outer sheath. For situations of fire risk and emissions.Fire Resistant MICA/XLPE
Low Smoke Zero Halogen
XLPE / MICA Thermocouple CablesFire Resistant MICA/XLPE Low Smoke Zero Halogen Single Pairs. Incorporates high temperature MICA glass tape. Halogen free. PFA
Insulated PFA Thermocouple CablesA wide range of PFA insulated cables. constructions such as 'Flat Twin', Twisted' and Screened cables are available. Fibreglass InsulatedFibreglass Thermocouple CablesA range of 'Flat Twin' and braided constructions in standard (480ºC) or High Temperature (800ºC) Fibreglass Ceramic Fibre InsulatedCeramic Fibre Thermocouple CablesA range of 'Flat Twin' and braided constructions in ceramic fibre insulations (1200ºC) Flame Retardant
Silicone Rubber Insulated Silicone Rubber Thermocouple CablesExcellent properties for the reduced propagation of flame by incorporation of flame retardant Silicone Rubber compounds in a range of constructions. Kapton®
Insulated Kapton Thermocouple CablesFlame retardant with resistance to chemicals and radiation with excellent physical, electrical and mechanical properties over high temperatures Stainless Steel
Braided Cables Stainless Steel Braided Thermocouple CablesStainless Steel Braided PVC, PFA and Fibreglass insulated cables.

Multipair Insulated Thermocouple Cables

Flame Retardant
PVC Insulated Multipair HR PVC Thermocouple CablesA range of solid or stranded mulipair cables with an individual and collective screen. HR PVC insulated from 2 to 50 pairs. Armoured or Non Armoured. XLPE Low Smoke FR
and Fume Multipair XLPE Thermocouple CablesA range of stranded multipair cables with an individual and collective screen. XLPE insulated from 2 to 36 pairs. Armoured or Non Armoured. PFA
Insulated Multipair PFA Thermocouple CablesA range of stranded multipair cables with a collective screen with or without steel wire braid. PFA insulated from 2 to 12 pairs. Fibreglass
Insulated Multipair Fibreglass Thermocouple CablesA range of stranded multipair cables, glass fibre insulated, with or without steel wire braid. Suitable for use up to 480ºC. From 2 to 12 pairs.

Thermocouple Wire Identification

Insulated wire for thermocouples use guidelines according to ANSI color coding. You will see in the table below, that commonly, negative wires are red, the outer sheath for thermocouple grades is brown and the positive lead is color coded according to thermocouple type. For extension grade cables this positive leg color is also carried over to the outer insulation color. Fiberglass insulated wires follow the same system but have a colored tracer rather than a solid color.

Thermocouple Cable Insulation Color Codes

Thermocouple
Type		 ANSI MC96.1 International Color Code
to IEC 60584-3		 Other (redundant) national colors
BS 1843 DIN 43714
K ANSI MC96.1 Type K Extension IEC60584-3 Type K Thermocouple Wire BS1843 Type K Thermocouple Wire DIN 43714 Type K Thermocouple Wire
T ANSI MC96.1 Type T Extension IEC60584-3 Type T Thermocouple Wire BS1843 Type T Thermocouple Wire DIN 43714 Type T Thermocouple Wire
J ANSI MC96.1 Type J Extension IEC60584-3 Type J Thermocouple Wire BS1843 Type J Thermocouple Wire DIN 43714 Type J Thermocouple Wire
N ANSI MC96.1 Type N Extension IEC60584-3 Type N Thermocouple Wire BS1843 Type N Thermocouple Wire --
E ANSI MC96.1 Type E Extension IEC60584-3 Type E Thermocouple Wire BS1843 Type E Thermocouple Wire DIN 43714 Type E Thermocouple Wire
S ANSI MC96.1 Type S Extension IEC60584-3 Type S Thermocouple Wire BS1843 Type S Thermocouple Wire DIN43714 Type S Thermocouple Wire
R ANSI MC96.1 Type R Extension IEC60584-3 Type R Thermocouple Wire BS1843 Type R Thermocouple Wire --

The maximum temperatures below are limited by the type of insulation used and are not indicative of the range of the thermocouple sensor which will be much higher, details of which can be found here.

Insulation Materials

There is a wide choice of insulation materials, the choice of which is governed by the application and the ambient temperature wires will be exposed to:

Heat Resistant PVC Insulated Wire


Heat Resistant (HR) PVC is a popular choice for general use in the temperature range -30ºC to +105ºC. It is available in a wide variety of constructions from simple bellwire to shielded and armored types in virtually all of the thermocouple combinations. Flame Retardant PVC is also available.

PFA Insulated Wire


PFA is ideal for higher temperature applications up to 250ºC when PVC is not adequate. It is also excellent for temperatures down to -75ºC.

PFA will withstand attack from virtually all known chemicals, oils and fluids. All our PFA cables are made in extruded form and are therefore gas, steam and water tight which makes them most suitable for applicatiins such as autoclaves or sterilizers. We offer a wide variety of constructions from simple twisted pairs to shielded types in virtually all of the thermocouple combinations.

Fibreglass and Ceramic Fibre Insulated Wire


Excellent for high temperature applications up to 480ºC for Fibreglass, and 800ºC for High Temperature Fibreglass and 1200ºC for Ceramic Fibre. They are suitable for use at normal air ambient temperatures where there is a possibility of a hot spot which might damage lower rated cables such as PVC or PFA.

We offer a wide variety of constructions from simple lapped and fiberglass braided to stainless steel braided types in virtually all of the thermocouple combinations.

XLPE Insulated Wire


These cables incorporate XLPE (Cross Linked Polyethylene) compound on the conductors and Low Smoke Zero Halogen (LS0H) material on the bedding and/or outer sheath. The sheathing materials used are Halogen free and the acidic gas which is evolved during combustion is less than 0.5% in accordance with IEC 60754-1. The mechanical properties of these cables meet the requirements of IEC 60811.

MICA/XLPE Insulated Wire


Resistant to a temperature of 750°C for at least three hours in accordance with the flame test requirements of IEC 60331. These cables are essential for situations where it is of strategic importance to ensure that the cable continues to function during a major crisis involving fire. The cable incorporates a high temperature rated Mica glass tape with a XLPE (Cross Linked Polyethylene) insulation on the conductors and Low Smoke Zero Halogen material on the bedding and/or outer sheath. Sheathing materials are Halogen free.