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Thermocouple Cable - PFA Insulated Twisted

Thermocouple Cables - Single Pair

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PFA is ideal for higher temperature applications up to 250°C. It is also excellent for cryogenic temperatures down to –75°C Withstands 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 applications such as autoclaves or sterilizers A wide variety of constructions from simple twisted pairs to screened types in virtually all the thermocouple combinations
			PFA Twisted One pair of solid conductors PFA insulated. Pair twisted and PFA sheathed.		PFA Twisted One pair of stranded conductors PFA insulated. Pair twisted and PFA sheathed
Stock Number			B25	B35	B55	B65
	Conductor Style		Solid		Stranded
	No. of Strands / Strand Diameter (mm)		1/0.5	1/0.8	7/0.2	13/0.2
	Total Area (mm²)		0.2	0.5	0.22	0.44
	Total AWG (S = Stranded)		24	20	24S	21S
	Insulation		PFA		PFA
	Number of Pairs		1		1
	Laid Flat or Twisted		Twisted		Twisted
	Screen		No		No
	Insulation		PFA		PFA
	Insulation Rating (ºC)	Continuous	-75 to +250		-75 to +250
		Short Term	+300		+300
	Colour Coding		Yes		Yes
	Physical Properties	Abrasion Resistance	Good		Good
		Moisture Resistance	Very Good		Very Good
		Typical Weight (Kg/100m) excl reel	1	3	1	2
	Diameter under Armour (mm)		—		—
	Diameter over Armour (mm)		—		—
	Overall Diameter		3	3	3	3
Popular Order Codes			B25KX, B25TX, B25JX, B25EX, B25RCA B35KX, B35TX, B35JX, B35RCA		B55KX, B55TX, B55JX, B55NX, B55RCA B65KX, B65TX, B65JX, B65RCA
Notes All dimensions are approximate			Round section (pair lay visible through sheath). Rejects electromagnetic interference. Gas, steam and water tight insulation.		Round section (pair lay visible through sheath). Rejects electromagnetic interference. Gas, steam and water tight insulation.

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Frequently Asked Questions

What is a thermocouple cable, and why is it important?
A thermocouple cable is used to connect a thermocouple sensor to measurement equipment. It transmits the temperature signal generated by the thermocouple, ensuring accurate readings are maintained. The choice of cable material (such as PVC, PFA, or fibreglass) affects the cable's durability, temperature range, and resistance to environmental factors, making it critical to select the right one for your application.
What are the different types of thermocouple cables available?
Thermocouple cables are categorised into extension and compensating types. Extension cables (X) use the same material as the thermocouple for accurate signal transmission, such as Type KX (Type K), Type JX (Type J), and Type TX (Type T). Compensating cables (C) use alternative alloys to mimic the thermocouple’s response over a limited range, such as Type KC (Type K) and Type SC/RC (Types S and R).
What insulation materials are available for thermocouple cables?
We stock over 3 million metres of thermocouple cable with a variety of insulation material, including PVC, PFA, fibreglass, ceramic fibre, XLPE, and silicon rubber. PVC (105ºC) is a good general purpose cable, PFA (250ºC) has good chemical and oil resistance, Fibreglass (480ºC) is good for industrial use at higher temperatures and Silicon Rubber (200ºC) is a good choice if a very flexible cable is required. For a more detailed overview of insulation materials, visit our insulation guide.