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. Communication
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.

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
noise interference. The Beldfoil® shield with
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 JacketedCable Specifications
● UL Subject 13
● UL 1685 (UL 1581) Vertical Tray Flame
Test comparable to IEEE 383-1974
(70,000 BTU) Flame Test
● ANSI/MC 96.1–1982
● NEC CMG
● NEC Type PLTC Listed, which is
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.
● NEC Type ITC Listed, which is approved
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.
● PVC/PVC constructions are CMG, FT4,
IEEE 1202 and IEEE 383-2003 rated,
and meet ICEA T-29-520 Flame Test.
● UL 1277 TC versions approved for use
in Class 1 trays available as special.
　

Shielded Twisted Pair
(FEP insulated, FEP jacketed cable specifications)
● UL Subject 13
● NFPA 262 (UL 910 Steiner Tunnel Flame
Test) comparable to FT6 Flame Test
● ANSI/MC 96.1–1982
● NEC Type CL3P/PLTC Listed, which is
approved for use in ducts, plenums and
other space used for environmental air.
● UL 1277 TC versions approved for use
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.