Thermocouple Extension Wire, Type C, D or G

Type CX Insulated Extension Wire
for Type C, G or D Thermocouples - Color code is Brown
Negative lead ( - ) is Red

NOTE: Thermocouple Types C and D can both use use CX extension wire, although recent tests and calculations have shown that using CX wire for D thermocouples can produce an error of up to 40 Deg F, of the measured temperature. There are no errors produced when using type CX wire for type C thermocouples.

Type GX wire is no longer produced. It is not recommended that CX wire be used for type G thermocouples. One can substitute copper wire for GX wire, although, using copper wire for type G thermocouple extension wire may produce an error of up to 100 Deg F, of the measured temperature.

The errors produced in either case are non-linear and depend on several variables, therefore a table of these errors is not available for publication, nor are these test results certified by a government laboratory.

Where available, the use of a 4-20 mAmp temperature transmitter is recommended for both types D and G thermocouples. In which case the output signal can be connected to your instrumentation using copper wire after the thermocouple signal has been converted to a mAmp signal.

Bookmark this page!
See chart at bottom of page INSULATION CODES

Part Number Price / Foot

805-CX-20 1.884

805-CX-24 1.884

810-CX-24 1.2

828-CX-20 1.392

828-CX-24 1.104

See chart below for INSULATION CODES

Part number code - Example: 828-CX-24

828 is the insulation code

CX is the thermocouple wire alloy

24 is the wire gage size

Price Subject to change without notice

Insulation Chart / Specifications
Insulation Code	Material	Continuous Use Temp. Limit	Single Exposure Limit	Moisture Resistance	Abrasion Resistance
805	PVC/PVC Twisted	-20 to 175 F	175F	Excellent	Good
810	Extruded Teflon	-90 to 500 F	600 F	Excellent	Good
828	Fiberglass	900 F	1000 F	Good	Fair
NOTE: By adding Stainless Steel overbraid to any of these insulations, you will greatly increase the abrasion resistance as well as dramatically minimize electromagnetic noise.Contact factory for details