IN D U STRIAL

A U T OMA TION

&

PR OCE S S

CO NTR O L

C ABLES

18.53

UL Instrumentation Cable

Thermocouple Extension Cables and Thermocouple Wire — Overview

Construction Thermocouple

Extension Cable

Conductor material determined by the

thermocouple extension wire type. FEP

or PVC insulated with FEP or PVC jacket.

Nylon rip cord included in all PVC-jacketed

thermocouple extension cables. Communi-

cation wire included on all multi-pair,

PVC constructions — 22 AWG (7x30) bare

copper orange PVC insulation.

NOTE: The temperature ranges in Table A

are applicable only to the thermocouple

conductors and not to the cable. The cable

must never be exposed to temperatures

higher than the maximum temperature

ratings shown in Table B.

Table B:

Other Insulation/Jacket Options

Application

Unshielded

Parallel non-shielded extension wire may

be utilized in low noise environments

when recommended by the instrument

manufacturer.

Overall Shield

Recommended, except in areas where high

voltage and current sources create excessive

drain wire provides 100% coverage for

maximum shield effectiveness.

Individually Shielded

Individually shielded pairs are recommended

for use in applications where optimum noise

rejection is required.

PVC Insulated, PVC Jacketed

Cable Specifications

Test comparable to IEEE 383-1974

(70,000 BTU) Flame Test

approved for cable tray use in Class 1,

Division 2, hazardous areas and

non-hazardous areas, cable trays,

raceways, conduit and supported

by messenger wires.

for cable tray use, raceways hazardous

locations according to Articles 501, 502,

503 and 504; or as aerial on a cable

messenger, and under raised floors in

control rooms and rack rooms where

arranged to prevent damage to the cable.

Usages are allowed based on qualified

persons servicing all installations.

IEEE 1202 and IEEE 383-2003 rated,

and meet ICEA T-29-520 Flame Test.

in Class 1 trays available as special.

Shielded Twisted Pair

(FEP insulated, FEP jacketed

cable specifications)

Test) comparable to FT6 Flame Test

approved for use in ducts, plenums and

other space used for environmental air.

in Class 1 trays available as special.

Thermocouple Wire

Conductor material determined by the

thermocouple type. FEP insulated and

jacketed flat constructions.

FEP thermocouple wire is impervious to

chemical attack and is flame retardant.

Jacket

Color

Limits of Error

Standard (°C)

Temperature

Range (°C)

(conductor only)

Positive ( + )

Negative ( - )

Conductor Identification

ANSI

Symbol

UL Listed for PLTC

Insulation/Jacket

Max. Temp Rating

XLPE/PVC

90°C

XLPE/CPE

90°C

PVC/PVC

105°C

PVC/CPE

105°C

PE/PVC

75°C

FPE/PVC

75°C

TPE/TPE

105°C

90°C

FEP/FEP

200°C

E

0 to 340

±1.7°C

Brown

Purple

Red

Chromel

®

Constantan

340 to 540

±.50%

Non-magnetic

Silver Color

J

0 to 293

±2.2°C

Brown

White

Red

Iron

Constantan

293 to 480

±.75%

Magnetic

Non-magnetic

K

0 to 293

±2.2°C

Brown

Yellow

Red

Chromel

293 to 980

±.75%

Non-magnetic

Magnetic

T

0 to 133

±1.0°C

Brown

Blue

Red

Copper

Constantan

133 to 260

±.75%

Copper Color

Non-magnetic

EX

0 to 200

±1.7°C

Purple

Purple

Red

Chromel

Constantan

JX

0 to 200

±2.2°C

Black

White

Red

Iron

Constantan

KX

0 to 200

±2.2°C

Yellow

Yellow

Red

Chromel

Alumel

TX

0 to 100

±1.0°C

Blue

Blue

Red

Copper

Constantan

Limits of error per ANSI MC96.1-1982. Limits shown do not include system or installation error. Percentages refer to the temperature being measured.

*The Temperature Range and Limits of Error are for standard grade thermocouples, Reference ANSI MC96.1-1982 for special grade thermocouples.

The Temperature Ranges for type E, J, K and T thermocouple wires listed above pertain to 20 AWG wire.

Additional constructions available upon request.

Table A: Thermocouple Identification and Limits of Error — Reference Junction 0°C*

Positive ( + )

Negative ( - )

Insulation Color Code

Standard lengths may be subject to tolerance. Custom lengths may be available upon

request. Contact the Belden Electronics Division Customer Service Department for

additional information. 1-800-BELDEN-1