Thermocouple Wire / Extension Wire

Thermocouple and Extension Wire Insulation Constructions & Characteristics
Note: Temperatures are approximations and assume a stable environment. If wires are subject to mechanical disturbances, performance will be adversely affected.
Insulation
Code		 Primary
Insulation		 Jacket
Insulation		 Temperature Rating Abrasion
Resistance		 Moisture
Resistance
Continuous
Reading		 Single
Reading
R-R Refrasil**Braid Refrasil**Braid 1600 F 2000 F Fair Fair
  (Vitreous Silcia) (Vitreous Silica)        
Gg-G Double Glass Glass Braid 900 F 1000 F Good Good
  Braid          
G-G Glass Braid Glass Braid 900 F 1000 F Good Good
Gw-G Glass Wrap Glass Braid 900 F 1000 F Good Good
Sg-Sg High Temperature High Temperature 1100 F 1400 F Good Good
  Glass Braid Glass Braid        
K-K Kapton* Tape Kapton* Tape 600 F 800 F Excellent Excellent
Tf-Tf Teflon* Tape Teflon* Tape 500 F 600 F Good Excellent
Tx-Tx Extruded Teflon* Extruded Teflon* 400 F 600 F Very Good Excellent
Sf-Sf Felted Braided 550 F 650 F Excellent Good
  Synthetic Fiber Synthetic Fiber        
P-P Polyvinyl Polyvinyl -20 to 221 F -20 to 221 F Good Excellent
* Tradename - E.I. DuPont   ** Tradename - H.I. Thompson Duplex Insulated Thermocouple Wire - Type K
Ordering Example: 20-K-RR-SL=
Type K Wire, 20 Ga., Refrasil Braid primary insulation, Refrasil Braid overall insulation, special limits of error tolerance

Note: All of the above construction available with metallic overbraids for mechanical protection. For other constructions, please contact sales office.

Type K (Chromel-Alemel+) Color Code: Neg-Red Pos-Yellow O/A Brown
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
14-K-SfSf 14 Solid Felted Synthetic Fiber Braided Synthetic Fiber .124x.218 40
20-K-SfSf 20 Solid Felted Synthetic Fiber Braided Synthetic Fiber .092x.154 18
20-K-SfG 20 Solid Felted Synthetic Fiber Glass Braid .054x.096 9
20-K-KK 20 Solid Fused Kapton* Tape Fused Kapton* Tape .048x.088 10
20-K-GG 20 Solid Glass Braid Glass Braid .056x.100 5
20-K-GwG 20 Solid Glass Wrap Glass Braid .056x.100 8
F20-K-GgG 20 Stranded Double Glass Braid Glass Braid .074x.136 9
20-K-SgSg 20 Solid High-Temp. Glass Braid High-Temp. Glass Braid .064x.112 16
20-K-TxTx 20 Solid Extruded Teflon* Extruded Teflon* .068x.116 11
20-K-TfTf 20 Solid Fused Teflon*Tape Fused Teflon* Tape .056x.102 10
20-K-RR 20 Solid Refrasil** Braid Refrasil** Braid .102x.174 16
24-K-GG 24 Solid Glass Braid Glass Braid .044x.076 4
24-K-GwG 24 Solid Glass Wrap Glass Braid .044x.076 4
24-K-TfTf 24 Solid Fused Teflon* Tape Fused Teflon* Tape .044x.078 5
30-K-GwG 30 Solid Glass Wrap Glass Braid .034x.056 2
  Add suffix SL for special limits of tolerance
+ Tradename - Hoskins Mfg. Co.* Tradename - E.I. DuPont
** Tradename - H.I. Thompson  Duplex Insulated Thermocouple Wire - Type J
Note: All of the above construction available with metallic overbraids for mechanical protection. For other constructions, please contact sales office.

Type J (Iron-Constantan) Color Code: Neg-Red Pos-White O/A Brown
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
14-J-SfSf 14 Solid Felted Synthetic Fiber Braided Synthetic Fiber .124x.218 40
20-J-SfSf 20 Solid Felted Synthetic Fiber Braided Synthetic Fiber .092x.154 18
20-J-SfG 20 Solid Felted Synthetic Fiber Glass Braid .054x.096 9
F20-J-SfG 20 Stranded Felted Synthetic Fiber Glass Braid .060x.108 10
20-J-KK 20 Solid Fused Kapton* Tape Fused Kapton* Tape .048x.088 10
20-J-GG 20 Solid Glass Braid Glass Braid .056x.100 5
20-J-GwG 20 Solid Double Glass Wrap Glass Braid .068x.124 8
F20-J-GgG 20 Stranded Double Glass Braid Glass Braid .074x.136 9
20-J-SgSg 20 Solid High-Temp. Glass Braid High-Temp Glass Braid .064x.112 16
20-J-TxTx 20 Solid Extruded Teflon* Extruded Teflon* .068x.116 11
20-J-TfTf 20 Solid Fused Teflon* Tape Fused Teflon* Tape .056x.102 10
24-J-GG 24 Solid Glass Braid Glass Braid .044x.076 4
24-J-GwG 24 Solid Glass Wrap Glass Braid .044x.076 4
24-J-TfTf 24 Solid Fused Teflon* Tape Fused Teflon* Tape .044x.078 5
30-J-GwG 30 Solid Glass Wrap Glass Braid .034x.056 2
  Add suffix SL for special limits of tolerance
* Tradename - E.I. DuPont  Duplex Insulated Thermocouple Wire - Type T

 

Type T (Copper-Constantan) Color Code: Neg-Red Pos-Blue O/A Brown
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
20-T-SfSf 20 Solid Felted Synthetic Fiber Braided Synthetic Fiber .092x.154 18
20-T-GG 20 Solid Glass Braid Glass Braid .056x.100 5
20-T-GwG 20 Solid Glass Wrap Glass Braid .068x.124 8
20-T-TxTx 20 Solid Extruded Teflon* Extruded Teflon* .068x.116 11
20-T-TfTf 20 Solid Fused Teflon* Tape Fused Teflon* Tape .056x.102 10
24-T-GG 24 Solid Glass Braid Glass Braid .044x.076 4
24-T-GwG 24 Solid Glass Wrap Glass Braid .044x.076 4
24-T-TfTf 24 Solid Fused Teflon* Tape Fused Teflon* Tape .044x.078 5
30-T-GwG 30 Solid Glass Wrap Glass Braid .034x.056 2

Duplex Insulated Thermocouple Wire - Type E
 

Type E (Chromel**-Constantan) Color Code: Neg-Red Pos-Purple O/A Brown
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
20-E-GG 20 Solid Glass Braid Glass Braid .056x.100 5
24-E-GG 24 Solid Glass Braid Glass Braid .044x.076 4

Thermocouple Extension Wire - Type KX.  
 

Type KX (Chromel-Alemel+) Color Code: Neg-Red Pos-Yellow O/A Yellow
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
14-KX-MSfSf 14 Solid Mylar* Felted Synthetic Fiber Braided Synthetic Fiber .124x.218 40
16-KX-MSfSf 16 Solid Mylar* Felted Synthetic Fiber Braided Synthetic Fiber .111x.192 32
16-KX-PP 16 Solid Polyvinyl Polyvinyl .121x.202 27
16-KX-PWb 16 Solid Polyvinyl Weather Proof Braid .115x.196 26
16-KX-PalP 16 Solid Polyvinyl Alum. Mylar* Polyvinyl (TW) .250 28
16-KX-GG 16 Solid Glass Braid Glass Braid .075x.138 18
20-KX-PP 20 Solid Polyvinyl Polyvinyl .102x.164 14
20-KX-PWb 20 Solid Polyvinyl Weather Proof Braid .096x.148 13
F20-KX-PP 20 Stranded Polyvinyl Polyvinyl .108x.176 14
20-KX-PalP 20 Solid Polyvinyl Alum. Mylar* Polyvinyl (TW) .200 20
16-KX-TalT 16 Solid Extruded Teflon* Alum. Mylar* Ext. Teflon* (TW) .165 23
20-KX-TalT 20 Solid Extruded Teflon* Alum. Mylar* Ext. Teflon* (TW) .127 12

Thermocouple Extension Wire - Type JX
 

Type JX (Iron-Constantan) Color Code: Neg-Red Pos-White O/A Black
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
14-JX-MSfSf 14 Solid Mylar* Synthetic Fiber Braided Synthetic Fiber .124x.218 40
16-JX-MSfSf 16 Solid Mylar* Synthetic Fiber Braided Synthetic Fiber .111x.192 32
16-JX-PP 16 Solid Polyvinyl Polyvinyl .121x.202 27
16-JX-Pwb 16 Solid Polyvinyl Weather Proof Braid .115x.196 26
16-JX-PalP 16 Solid Polyvinyl Alum.Mylar* Polyvinyl .250 28
16-JX-GG 16 Solid Glass Braid Glass Braid .075x.138 18
20-JX-PP 20 Solid Polyvinyl Polyvinyl .102x.164 14
20-JX-PWb 20 Solid Polyvinyl Weather Proof Braid .096x.158 13
F20-JX-PP 20 Stranded Polyvinyl Polyvinyl .108x.182 14
20-JX-PalP 20 Solid Polyvinyl Alum. Mylar* Polyvinyl (TW) .200 20
16-JX-TalT 16 Solid Extruded Teflon* Alum.Mylar* Ext. Teflon* (TW) .165 23
20-JX-TalT 20 Solid Extruded Teflon* Alum. Mylar* Ext. Teflon* (TW) .127 12

Thermocouple Extension Wire - Type TX  
 

Type TX (Copper-Constantan) Color Code: Neg-Red Pos-Blue O/A Blue
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
20-TX-PP 20 Solid Polyvinyl Polyvinyl .102x.164 15
20-TX-PalP 20 Solid Polyvinyl Alum. Mylar* Polyvinyl (TW) .200 20
F20-TX-PP 20 Stranded Polyvinyl Polyvinyl .108x.176 14

Thermocouple Extension Wire - Type EX
 

Type EX (Chromel**-Constantan) Color Code: Neg-Red Pos-Purple O/A Purple
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
20-EX-PP 20 Solid Polyvinyl Polyvinyl .102x.164 15
20-EX-PalP 20 Solid Polyvinyl Alum. Mylar* Polyvinyl (TW) .200 20

Thermocouple Extension Wire - Type RSX  
 

Type RSX (Copper-Alloy #11) Color Code: Neg-Red Pos-Black O/A Green
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
16-RSX-MSf 16 Solid Mylar* Felted Synthetic Fiber Synthetic Fiber Braid .111x.192 34
20-RSX-PP 20 Solid Polyvinyl Polyvinyl .102x.164 15

Thermocouple Extension Wire - Type NX  
 

Type NX (Nicrosil-Nisil) Color Code: Neg-Red Pos-Orange O/A Orange
Part
Number		 Wire Primary
Insulation		 Overall
Insulation		 Nominal
Overall
Dimensions
in inches		 Approx.
Shipping
Wt. per
M/FT
Gauge
Size		 Solid or
Stranded
20-NX-PP 20 Solid Polyvinyl Polyvinyl .102x.164 14
20-NX-PalP 20 Solid Polyvinyl Alum. Mylar* Polyvinyl (TW) .200 20