Thermocouple: The junction of two dissimilar alloys producing a measurable electro-motive force that is predictable at given temperatures.
Able regularly fabricates over 200 different thermocouple wire constructions, many to meet specific operating requirements.
Common Base Metal Conductor Alloys for Thermocouple Wire (all available from Able Wire)
ISA Calibration Type
J
K
T
E
Positive Wire
Iron
Chromel®
Copper
Chromel®
Negative Wire
Contantan
Alumel®
Constantan
Constantan
Temperature Range
-328 to 1652 F (-200 to 900) C
-328 to 2282 F (-200 to 1250) C
-328 to 662 F (-200 to 350) C
-328 to 1652 F (-200 to 900) C
Standard Tolerance +/-
2.2ºC or 0.75%
2.2ºC or 0.75%
1.0ºC or 0.75% (1.5%, 0ºC)-
1.7ºC or 0.5%
ISA Color (singles) +/-
White/Red
Yellow/Red
Blue/Red
Purple/Red
ISA Color (jacket)
Brown
Brown
Brown
Brown
Extension grades and compensated lead wires for noble metal thermocouples are also available.
®Registered Trade Names of Hoskins Manufacturing Company.
Common Insulations for Thermocouple Wire (all available from Able Wire)
Insulation Code
Insulation Type
Insulating Process
Temperature Range F (C) Continuous/Single
Abrasion Resistance
G
"E" Fiberglass
Braid
900/1100 (482/538)
Fair
Sg
"S" Fiberglass
Braid
1100/1200 (593/650)
Fair
R
Amorphous Silica
Braid
1600/1800 (871/982)
Poor
Tf
PTFE
Tape Wrap
500 (260)
Good
Tx
FEP
Extrusion
400 (204)
Excellent
K
Polyimide
Tape Wrap
600/800 (316/427)
Good
P
Polyvinyl Chloride
Extrusion
221/221 (105/105)
Good
Al
Aluminum/Polyester
Laminated Tape Wrap
220 (105)
N.A.
SiR
Silicone Rubber
Extrusion
500 (260)
Fair
Able Wire Company designations correspond with the calibrations and standards of the Instrument Society of America (ISA) and the American National Standard Institute (ANSI).
Able works closely with customer engineers to design wire and cable and will manufacture prototypes as appropriate.
For international and domestic sales contact: Able Wire Company 49 Raytkwich Road Naugatuck, CT 06770 Voice: (203) 723-1111 Fax: (203) 723-1151
