Thermocouple Extension Grade Wire Types

Home Thermocouple Wire Thermocouple Extension Grade Wire Types

Type JX Thermocouple Extension Wire

ANSI/ASTM Color Code: Positive – White, Negative – Red, Overall – Black

INSULATION	GA.	CODE	SOLID/ STRANDED	NOMINAL SIZE	INSULATION TEMP. RATING
PVC Duplex-Parallel Extruded Jacket	14	JX-14-PP40	Solid	.130 x .226	221°F (105°C)
	16	JX-16-PP40	Solid	.115 X .190
	20	JX-20-PP40	Solid	.095 X .158
	20	JXF-20-PP40	Stranded	.113 X .182
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	16	JX-16-PP90	Solid	.220	221°F (105°C)
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	20	JX-20-PP90	Solid	.184	221°F (105°C)
Extruded Teflon FEP Duplex-Parallel Extruded Jacket	20	JX-JXF-20-EE4020-PP90	Stranded	.075 x .122	400°F (209°C)
Extruded Teflon FEP Duplex-Twisted Shield w/Drain Extruded Jacket	16	JX-16-EE90	Solid	.220	400°F (204°C)
	20	JX-20-EE90	Solid	.131
	20	JXF-20-EE90	Stranded	.135
Synthetic Fiber Braid Duplex-Parallel Braided Jacket	14	J-14-SS40	Solid	.190 x .290	500°F (260°C)
	16	J-16-SS40	Solid	.170 x .240
	16	JXF-16-SS40	Stranded	.175 x .250

Type KX Thermocouple Extension Wire

ANSI/ASTM Color Code: Positive – Yellow, Negative – Red, Overall – Yellow

INSULATION	GA.	CODE	SOLID/ STRANDED	NOMINAL SIZE	INSULATION TEMP. RATING
PVC Duplex-Parallel Extruded Jacket	14	KX-14-PP40	Solid	.130 x .226	221°F (105°C)
	16	KX-16-PP40	Solid	.115 X .190
	20	KX-20-PP40	Solid	.095 X .158
	20	KXF-20-PP40	Stranded	.113 X .182
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	20	KXF-20-PP80	Solid	.160	221°F (105°C)
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	16	KX-16-PP90	Solid	.220	221°F (105°C)
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	20	KX-20-PP90	Solid	.184	221°F (105°C)
Extruded Teflon FEP Duplex-Parallel Extruded Jacket	16	KX-16-EE40	Solid	.190 x .290	400°F (204°C)
Extruded Teflon FEP Duplex-Parallel Extruded Jacket	20	KXF-20-EE40	Stranded	.075 X .122	400°F (204°C)
Extruded Teflon FEP Duplex-Twisted Shield w/Drain Extruded Jacket	16	KX-16-EE90	Solid	.220	400°F (204°C)
	20	KX-20-EE90	Solid	.131
	20	KXF-20-EE90	Stranded	.135
Silicone Rubber Duplex-Twisted Extruded Jacket	24	KXF-24-LL80	Stranded	.225	500°F (260°C)
Silicone Rubber Duplex-Twisted Extruded Jacket	20	KXF-20-LL80	Stranded	.400	500°F (260°C)
Synthetic Fiber Braid Duplex-Parallel Braided Jacket	14	KX-14-SS40	Solid	.190 X .290	500°F (260°C)
	16	KX-16-SS40	Solid	.170 X .240
	16	KXF-16-SS40	Stranded	.175 X .250

Type TX Thermocouple Extension Wire

ANSI/ASTM Color Code: Positive – Blue, Negative – Red, Overall – Blue

INSULATION	GA.	CODE	SOLID/ STRANDED	NOMINAL SIZE	INSULATION TEMP. RATING
PVC Duplex-Parallel Extruded Jacket	16	TX-16-PP40	Solid	.115 X .190	221°F (105°C)
	20	TX-20-PP40	Solid	.095 X .158
	20	TXF-20-PP40	Stranded	.113 X .182
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	16	TX-16-PP90	Solid	.113 X .182	221°F (105°C)
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	20	TX-20-PP90	Solid	.184	221°F (105°C)
Extruded Teflon FEP Duplex-Twisted Shield w/Drain Extruded Jacket	16	TX-16-EE90	Solid	.220	400°F (204°C)
	20	TX-20-EE90	Solid	/131	400°F (204°C)

Type EX Thermocouple Extension Wire

ANSI/ASTM Color Code: Positive – Purple, Negative – Red, Overall – Purple

INSULATION	GA.	CODE	SOLID/ STRANDED	NOMINAL SIZE	INSULATION TEMP. RATING
PVC Duplex-Parallel Extruded Jacket	20	EX-20-PP40	Solid	.095 X .158	221°F (105°C)
	20	EXF-20-PP80	Stranded	.180	221°F (105°C)
	16	EX-16-PP90	Solid	.220	221°F (105°C)
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	16	EX-20-PP90	Solid	.184	221°F (105°C)

Type NX Thermocouple Extension Wire

ANSI/ASTM Color Code: Positive – Orange, Negative – Red, Overall – Orange

INSULATION	GA.	CODE	SOLID/ STRANDED	NOMINAL SIZE	INSULATION TEMP. RATING
PVC Duplex-Parallel Extruded Jacket	20	NX-20-PP40	Solid	.095 X .158	221°F (105°C)

Type RX/SX Thermocouple Extension Wire

ANSI/ASTM Color Code: Positive – Black, Negative – Red, Overall – Green

INSULATION	GA.	CODE	SOLID/ STRANDED	NOMINAL SIZE	INSULATION TEMP. RATING
	16	R,SX-16-PP40	Solid	.115 X .190
	20	R,SX-20-PP40	Solid	.095 X .158
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	16	R,SX-16-PP90	Solid	.220	221°F (105°C)
PVC Duplex-Twisted Shield w/Drain Extruded Jacket	20	R,SX-20-PP90	Solid	.184	221°F (105°C)
Extruded Teflon FEP Duplex-Parallel Extruded Jacket	16	R,SX-16-EE40	Solid	.085 X .155	400°F (204°C)
Extruded Teflon FEP Duplex-Parallel Extruded Jacket	20	R,SX-20-EE40	Solid	.065 X .110	400°F (204°C)
Teflon TFE Fused Tape Duplex-Parallel Fused Tape Jacket	16	R,SX-16-TT40	Solid	.085 X .155	500°F (260°C)
Extruded Teflon FEP Duplex-Twisted Shield w/Drain Extruded Jacket	16	R,SX-16-EE90	Solid	.220	400°F (204°C)
	20	R,SX-20-EE90	Solid	.131	400°F (204°C)
Synthetic Fiber Braid Duplex-Parallel Braided Jacket	16	R,SX-16-SS40	Solid	.170 X .240	500°F (260°C)
Synthetic Fiber Braid Duplex-Parallel Braided Jacket	16	R,SXF-16-SS40	Stranded	.175 X .250	500°F (260°C)
Glass Braid Duplex-Parallel Braided Jacket	16	R,SX-16-GG40	Solid	.110 x .160	900°F (482°C)
	20	R,SX-20-GG40	Solid	.060 X .100
	24	R,SX-24-GG40	Solid	.045 X .080

Type BX Thermocouple Extension Wire - Non-compensating (Copper vs Copper)

ANSI/ASTM Color Code: Positive – Gray, Negative – Red, Overall – Gray

INSULATION	GA.	CODE	SOLID/ STRANDED	NOMINAL SIZE	INSULATION TEMP. RATING
Glass Braid Duplex-Parallel Braided Jacket	20	BX-20-GG40	Solid	.060 X .100	900°F (482°C)

Type CX Thermocouple Extension Wire (Alloy 405 vs Alloy 426)

ANSI/ASTM Color Code: Positive – Orange, Negative – Red, Overall – Orange/Black Tracer

INSULATION	GA.	CODE	SOLID/ STRANDED	NOMINAL SIZE	INSULATION TEMP. RATING
Glass Braid Duplex-Parallel Braided Jacket	24	CX-24-GG40	Solid	.050 X .090	900°F (482°C)

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