RS PRO Type K Thermocouple Wire, 25m, Unscreened, Glass Fibre Insulation, +400°C Max, 1/0.315mm

Type K or J glassfibre flat pair with stainless steel overbraiding with good temperature resistance but not suitable where fluids are present.

Stainless steel braided options
Glass fibre insulated flat pair construction, conductors laid flat, glassfibre insulated with glass fibre jacket, silicone varnished throughout and stainless steel overbraid for added protection and mechanical strength
Colour coded in accordance with BS4937 Pt 30
Temperature rating -60 to +350°C (short periods up to 400°C)
Glass fibre insulated extension cable in thermocouple types; KX, JX or TX
Good temperature resistance but not suitable where fluids are present
Types KX & TX available in solid 1/0.3mm conductors, JX in 7/0.2mm stranded conductors
All types; conductors are made from associated K, J or T thermocouple alloy type
Tolerance Class 2 to IEC-584
Insulation rating -60°C to 350°C (short periods up to 400°C)
Colour code (cores & jacket) to IEC-584-3

Thermocouples are instruments that are designed to provide temperature measurement of substances and have a variety of applications such as;
Medical - research into DNA and hypodermic insertion to detecting a tumour.

• Vehicle diagnostics - used to monitor and adjust factors such as battery health, exhaust readings, spark plug function and brake performance.


• Temperature readings in boilers, heating sensors, and ovens


• Food thermometers, industrial probes, and sensors

Screened share a lot in common with unscreened cables however screened cables emit less electromagnetic energy which can cause signal interference with cables that are nearby.

RS PRO is our own brand of high-quality products whilst bringing you great value for money. Our wide range of products have been engineered to meet high industry standards, so you are ensured reliable and robust solutions.

BS4937 Part 30 1993 which conforms to IEC 584-3

BS 4937 Part 30 1993