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Multi-Conductor Extension Cable

Each conductor is insulated with Polyvinyl Chloride(PVC) or Teflon. An aluminum backed Mylar™(DuPont Trademark) tape serves as an electrostatic shield. A solid 20 gauge tinned-copper drain wire is over the bundle in direct contact with the aluminum/mylar shield, thus minimizing any stray EMFs. Conductors are color coded and numbered for identification. All conductors are insulated with an outer jacket of polyvinyl chloride or Teflon insulation approximately .0245" thick. Multipair extension cable can be manufactured with various quantities of pairs and insulation types. Contact JMS Southeast sales office for any requirements you may have.

Cut Sheets
Technical Information
White Papers

Cut Sheets
Technical Information
White Papers

Cut Sheets

Multi-Conductor Extension Cable
File Size: 363.95kb

Thermocouple Type Material & Color Code
Thermocouple Limits of Error and Published Range For Bare Wire
Wire Insulation Material
Accuracy of JMS Thermocouple Extension Wire
Thermocouple Extension Grade Wire General Information
Thermocouple Grade Wire General Information

Thermocouple Type	Material	Magnetic	ASTM Color Coding	IEC Color Coding
J	Iron Constantan	Yes No	White Red	White Black
T	Copper Constantan	No No	Blue Red	White Brown
K	Chromel Alumel	No No	Yellow Red	White Green
E	Chromel/Constantan	No No	Purple Red	White Violet
P	Platinel	N/A	N/A	N/A
S	Platinum 10% Rhodium Pure Platinum	No No	Black Red	White Orange
R	Platinum 13% Rhodium Pure Platinum	No No	Black Red	white Orange
B	Platinum 30% Rhodium Platinum 6% Rhodium	No No	Grey Red	White Grey
N	Nicrosil/Nisil	No Slightly	Orange Red	White Pink
C	Tungsten 5% Rhenium/ Tungsten 26% Rhenium	No No	White Red	N/A

ANSI Thermocouple Type	Temp Range (°C)	Temp Range (°F)	Standard Limits of Error (°C)^*	Special Limits of Error (°C)
J	0 to 760	32 to 1400	The greater of ±2.2 or ±0.75%	The greater of ±2.2 or ±0.75%
T	0 to 370	32 to 700	The greater of ±1 or ±0.75%	The greater of ±0.5 or ±0.4%
K	0 to 1260	32 to 2300	The greater of ±2.2 or ±0.75%	The greater of ±1.1 or ±0.4%
E	0 to 870	32 to 1600	The greater of ±1.7 or ±0.5%	The greater of ±1 or ±0.4%
S	0 to 1480	32 to 2700	The greater of ±1.5 or ±0.25%	The greater of ±0.6 or ±0.1%
R	0 to 1480	32 to 2700	The greater of ±1.5 or ±0.25%	The greater of ±0.6 or ±0.1%
N	0 to 1246	32 to 2300	The greater of ±2.2 or ±0.75%	The greater of ±1.1 or ±0.4%
B	870 to 1700	1600 to 3100	±0.5%	±0.25%
T^A	-200 to 0	-328 to 32	The greater of ±1 or ±1.5%	^B
E^A	-200 to 0	-328 to 32	The greater of ±1.7 or ±1%	^B
K^A	-200 to 0	-328 to 32	The greater of ±2.2 or ±2%	^B

^A: Thermocouple and thermocouple materials are normally supplied to meet the tolerances specified in the table of temperatures above 0°C. The same materials, however, may not fall within the tolerances given for temperatures below 0°C in the normal section in the table. If materials are required to meet the tolerances stated for temperatures below 0°C the purchase order must specifically state that requirement. Selection of materials will usually be required.

^B: Special tolerances for temperatures below 0°C are difficult to justify due to limited available information.

*: Standard and special limits of error in °F are 1.8 times larger thant the °C tolerance at the equivalent °C temperature.

WIRE INSULATION MATERIAL

POLYVINYL CHLORIDE INSULATED WIRE

Polyvinyl Chloride-Polyvinyl Chloride - PP

Color-coded polyvinyl chloride is extruded on each individual conductor and on the outer jacket. It has dielectric and mechanical strength, plus flexibility. PVC is resistant to flame, moisture and abrasion. It is also inexpensive and easily pulled through a conduit. lt is offered in thermocouple extension grade. Temperature rating: Continuous: -20 to +221°F (-29 to 105°C)

Polyvinyl Chloride Rip-Cord Construction - PC

Polyvinyl chloride is extruded on both positive and negative conductors simultaneously to form a rip-cord construction. Offered in thermocouple grade 24 gauge solid conductors. Temperature rating: Continuous: -20 to +221°F (-29 to 105°C)

Polyvinyl Chloride with Twisted Conductors, Aluminum Mylar* Shield, and Drain Wire - PA

Polyvinyl chloride insulates the positive and negative conductors. The conductors are then twisted and helically wrapped with an aluminum backed Mylar* tape. A bare copper drain wire runs through the construction in contact with the aluminum tape furnishing a low resistance path to ground. The twisted shield provides electrostatic interference rejection. The outer jacket is of polyvinyl chloride which has excellent mechanical strength. Wire is resistant to flame, moisture, and abrasion. Offered in extension grade. Thermocouple grade available upon request. Temperature rating: Continuous: Up to 176°F and 80°C

*Trade name of DuPont.

KAPTON INSULATED WIRE

Kapton - KK

Kapton polyimide film is applied to both the positive and negative conductor or just to the positive conductor. Kapton is highly resistive to abrasion, radiation and is non-flammable. Excellent for use in extremely harsh environments. No ISA/ ASTM color code. Kapton has no known organic solvents. Kapton is an excellent choice for cryogenic environments because its insulating characteristics remain intact at lower temperatures. Offered in thermocouple grade. Temperature rating: Continuous: Up to 550°F (285°C). Intermittent: Up to 750°F (400°C).

NYLON INSULATED WIRE

Nylon-Nylon - NN

Color-coded nylon is extruded on both positive and negative conductors with a nylon outer jacket. This insulation has excellent abrasion resistance, excellent chemical resistance, and poor moisture resistance. Offered in thermocouple grade. Temperature rating: Continuous: Up to 350°F and 177°C.

TEFLON INSULATED WIRE

Teflon (extruded) Teflon (extruded) - TT

Color-coded Teflon (FEP)* is extruded on the positive and negative conductors and outer jacket. This insulation is unaffected by most corrosive substances, outdoor weather, or lubricants. It is flame resistant and heat aging will not cause embrittlement or cracking. Good for cryogenic applications. Offered in thermocouple grade. Temperature rating: Continuous: Up to 400°F (200°C).

Teflon (Fused TFE Tape) Teflon (Fused TFE Tape) - TF

TFE tape is spirally applied to the conductor and heated. This process fuses the tape into a homogeneous layer of TFE. Fused teflon wire offers good abrasion resistance and excellent resistance to both moisture and chemicals. Offered in thermocouple grade. Temperature rating: Continuous: Up to 500°F (260°C).

*DuPont Trademark

FIBROUS INSULATED WIRE

Fiberglass Braid - GG

Glass braid on individual conductors with glass braid outer jacket. Designed for continuous use in high temperature applications. Poor abrasion and moisture resistance. Offered in thermocouple grade. Temperature rating: Continuous: Up to 900°F (482°C). Intermittent: Up to 1000°F (529°C).

Hightemp Fiberglass Braid - HG

A high temperature fiberglass braid is applied over each conductor and then impregnated with a binder. Although the binder improves resistance to abrasion and moisture, it is destroyed above 400°F (204°C). Offered in thermocouple grade. Temperature rating: Continuous: Up to 1300°F (705°C). Intermittent: Up to 1600°F (871°C). We recommend SS overbraid with this wire (Ordering Code HS).

Fiberglass and Hightemp Fiberglass Braid with Stainless Steel Overbraid - GS and HS

A stainless steel overbraid is applied to fiberglass (Ordering Code GS) or high temperature fiberglass (Ordering Code HS) wire insulation to increase the wire’s resistance to abrasion, mechanical and physical damage. It may be applied to 14 through 30 gauge conductors. Other overbraid materials such as Inconel* are also available by special order codes.

*Special Metals Corporation Trademark

Refrasil - RR

Vitreous silica is applied on both positive and negative conductors with a vitreous silica outer jacket. Refrasil is typically not color coded. Used in high temperature applications, including furnace, load thermocouple and traveling thermocouple applications. Moisture and abrasion resistance only fair. Offered in thermocouple grade. Available with SAE AMS 2750 compliant calibration data. Temperature rating: Continuous: Up to 1600°F (871°C). Intermittent: Up to 1800°F (982°C). We recommend stainless steel or other overbraid with this wire.

Nextel - NE

A high temperature ceramic fiber is applied over each conductor and then overall. Nextel is not colored coded. Although nextel is not recommended for use with platinum thermocouples, it can be used as an excellent option for other high temperature applications. Its use is limited by the temperature rating of the thermocouple wire it insulates. It is frequently used in furnace and traveling thermocouple applications. Available with SAE AMS 2750 compliant calibration data. Temperature rating: Continuous: Up to 2200°F (1200°C). We recommend SS overbraid with this wire.

ACCURACY OF JMS EXTENSION WIRE

Thermocouple extension wire has approximately the same thermoelectric characteristics as thermocouple wire, but its accuracy is guaranteed over a more limited range of temperatures. Thermocouple extension wire can offer advantages in cost when used for connections between thermocouples and instruments. For base metal types of thermocouples, extension wire is of substantially the same composition as the corresponding thermocouple type. For noble metal types, however, an entirely different alloy is formulated to match the noble metal characteristics over a specified temperature range. This is necessary due to the high cost of the noble metals which would otherwise be necessary for the interconnection. The “X” in the ordering codes denotes extension grade wire.

Fahrenheit

TC Type		°F
EXTENSION WIRE ALLOY	ANSI TYPE SYMBOL	TEMPERATURE RANGE °F	STANDARD LIMITS	ORDER CODE	SPECIAL LIMITS	ORDER CODE
Copper vs. Constantan™	TX	-75° to +210°	±2°	TX	±1°	TTX
Iron vs. Constantan™	JX	+32 to +400°	±4°	JX	±2°	JJX
Chromel™ (+) vs. Constantan™	EX	+32 to +400°	±3°	EX	±2°	EEX
Chromel™ vs. Alumel™	KX	+32 to +400°	±4°	KX	±2°	KKX
Nicrosil™ vs. Nisil™	NX	+32 to +400°	±4°	NX	±2°	NNX
Copper vs. Copper Alloy	SX	+75 to +400°	±12°	SX
Copper vs. Copper Alloy	RX			RX
PCLW630 vs. Copper	BX	+32 to +400°	±4°	BX
Copper vs. Copper	2CU	+32 to +150°	±2°	BX
Alloy 203 vs. Alloy 225	W3X	+32 to +500°	±12°	W3X
Alloy 405 vs. Alloy 426	W5X	+32 to +1600°	±12°	W5X

Celsius

TC Type		°C
EXTENSION WIRE ALLOY	ANSI TYPE SYMBOL	TEMPERATURE RANGE °C	STANDARD LIMITS	ORDER CODE	SPECIAL LIMITS	ORDER CODE
Copper vs. Constantan™	TX	-60° to +100°	±1°	TX	±.5°	TTX
Iron vs. Constantan™	JX	+0 to +200°	±2.2°	JX	±1.1°	JJX
Chrome™l (+) vs. Constantan™	EX	0 to +200°	±1.7°	EX	±1.1°	EEX
Chromel™ vs. Alumel™	KX	0 to +200°	±2.2°	KX	±1.1°	KKX
Nicrosil™ vs. Nisil™	NX	0 to +200°	±2.2°	NX	±1.1°	NNX
Copper vs. Copper Alloy	SX	+25 to +200°	±7°	SX
Copper vs. Copper Alloy	RX			RX
PCLW630 vs. Copper	BX	0 to +200°	±2.2°	BX
Copper vs. Copper	2CU	0 to 65°	±1°	BX
Alloy 203 vs. Alloy 225	W3X	0 to 260°	±7°	W3X
Alloy 405 vs. Alloy 426	W5X	0 to 870°	±7°	W5X

Special Note: Using Cu/ Cu wire for type B thermocouples can introduce an error from 7°F to 85°F(3.7°C to 48°C) if the connection point is from 212 - 572°F (100 - 300°C). Up to 99% of these errors are avoided by using the appropriate extension wire.

ANSI: TYPE, J - Iron / Constantan
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
PP161JX	16	Solid	.137	Polyvinyl Chloride	Polyvinyl Chloride	.111 x .188”	27 lbs.
PA161JX	16	Solid	.137	PVC/Alum. Mylar Shield (Twisted)	PVC	.222”	28 lbs.
PA201JX	20	Solid	.357	PVC/Alum. Mylar Shield (Twisted)	PVC	.184”	20 lbs.
PP201JX	20	Solid	.357	Polyvinyl Chloride	Polyvinyl Chloride	.095 x .158”	14 lbs.
PP202JX	20	Stranded	.317	Polyvinyl Chloride	Polyvinyl Chloride	.115 x .190”	14 lbs.
PX201JX	20	Solid	.357	(FEP) Extruded Teflon	Extruded Teflon	.072 x .124”	11 lbs.

ANSI: TYPE, K - Chromel / Alumel
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
PA161KX	16	Solid	.233	PVC/Alum. Mylar Shield (Twisted)	PVC	.222”	28 lbs.
PP161KX	16	Solid	.233	Polyvinyl Chloride	Polyvinyl Chloride	.116 x .188”	27 lbs.
PA201KX	20	Solid	.590	PVC/Alum. Mylar Shield (Twisted)	PVC	.184”	20 lbs.
PP201KX	20	Solid	.590	Polyvinyl Chloride	Polyvinyl Chloride	.195 x .158”	14 lbs.
PP202KX	20	Stranded	.538	Polyvinyl Chloride	Polyvinyl Chloride	.115 x .190”	14 lbs.

ANSI: TYPE, T - Copper / Constantan
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
PP141TX	14	Solid	.074	Polyvinyl Chloride	Polyvinyl Chloride	.130 x .226”	37 lbs.
PA161TX	16	Solid	.118	PVC/Alum. Mylar Shield (Twisted)	PVC	.222”	20 lbs
PP161TX	16	Solid	.118	Polyvinyl Chloride	Polyvinyl Chloride	.111 x .188”	28 lbs.
PA201TX	20	Solid	.298	PVC/Alum. Mylar Shield	PVC	.184”	20 lbs.
PP201TX	20	Solid	.298	Polyvinyl Chloride	Polyvinyl Chloride	.095 x .158”	15 lbs.

ANSI: TYPE, E - Chromel / Constantan
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
PA161EX	16	Solid	.278	PVC/Alum. Mylar Shield (Twisted)	PVC	.222”	20 lbs.
PP201EX	20	Solid	.704	Polyvinyl Chloride	Polyvinyl Chloride	.095 x .158”	15 lbs.

ANSI: TYPE, S and R - Platinum / Rhodium
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
PP161SX	16	Solid	.016	Polyvinyl Chloride	Polyvinyl Chloride	.116 x .250”	27 lbs.
GG201SX	20	Solid	.040	Glass Braid	Glass Braid	.059 x .105”	8 lbs.
PP201SX	20	Solid	.040	Polyvinyl Chloride	Polyvinyl Chloride	.095 x .158	14 lbs.

*ohms per double foot at 20°C (68°F).

ANSI: TYPE, J - Iron / Constantan
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
GG210J	20	Solid	.357	Glass Braid	Glass Braid	.059 x .105”	8 lbs.
GG202J	20	Stranded	.317	Double Glass Braid	Glass Braid	.075 x .137”	9lbs.
KK201J	20	Solid	.357	Fused Kapton Tape	None, Twisted	.087”	10 lbs.
NN201J	20	Solid	.357	Nylon	Nylon	.068 x .120”	11 lbs.
TF201J	20	Solid	.357	(TFE) tape, Teflon	(TFE) tape, Teflon	.065 x .110”	10 lbs.
TX201J	20	Solid	.357	Extruded (FEP) Teflon	Extruded (FEP) Teflon	.072 x .124”	11 lbs.
GG241J	24	Solid	.877	Glass Braid	Glass Braid	.047 x .081”	4 lbs.
KK241J	24	Solid	.877	Fused Kapton Tape	None, Twisted	.063”	5 lbs.
PP241J	24	Solid	.877	Polyvinyl Chloride	None, Rip-Cord	.048 x .096”	4 lbs.
TF241J	24	Solid	.877	(TFE) tape, Teflon	(TFE) tape, Teflon	.047 x .078”	5 lbs.
GG261J	26	Solid	1.394	Glass Wrap	Glass Braid	.040 x .065”	3 lbs.
GG281J	28	Solid	2.216	Glass Wrap	Glass Braid	.037 x .059”	3 lbs.
GG301J	30	Solid	3.520	Glass Wrap (Braid avail.)	Glass Braid	.033 x .053”	3 lbs.

ANSI: TYPE, K - Chromel / Alumel
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
GG201K	20	Solid	.590	Glass Braid	Glass Braid	.059 x .105”	8 lbs.
GG202K	20	Stranded	.538	Double Glass Braid	Glass Braid	.075 x .137”	9 lbs.
KK201K	20	Solid	.590	Fused Kapton Tape	None, Twisted	.087”	10 lbs.
RR201K	20	Solid	.590	Vitreous Silica Braid	Vitreous Silica Braid	.102 x .174”	16 lbs.
TF201K	20	Solid	.590	(TFE) tape, Teflon	(TFE) tape, Teflon	.065 x .110”	10 lbs.
TX201K	20	Solid	.590	Teflon Extruded (FEP)	Teflon Extruded	.072 x .124”	11 lbs.
GG241K	24	Solid	1.490	Glass Braid (Wrap avail.)	Glass Braid	.047 x .081”	4 lbs.
PP241K	24	Solid	1.490	Polyvinyl-Rip Cord Const.	None	.048 x .096”	4 lbs.
GG261K	26	Solid	2.370	Glass Wrap	Glass Braid	.040 x .065”	3 lbs.
GG281K	28	Solid	3.770	Glass Braid (Wrap avail.)	Glass Braid	.039 x .064”	3 lbs.
GG301K	30	Solid	5.980	Glass Wrap	Glass Braid	.033 x .053”	2 lbs.

ANSI: TYPE, T - Copper / Constantan
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
GG201T	20	Solid	.298	Glass Braid (Wrap avail.)	Glass Braid	.059 x .105”	5 lbs
TF201T	20	Solid	.298	(TFE) tape, Teflon	(TFE) tape, Teflon	.065 x .110”	10 lbs.
TX201T
GG241T	20	Solid	.298	Extruded Teflon (FEP)	Extruded Teflon	.072 x .124”	11 lbs.
NN241T
PP241T	24	Solid	.753	Nylon	Nylon	.060 x .095”	6 lbs.
TF241T	24	Solid	.753	(TFE) tape, Teflon	(TFE) tape, Teflon	.047 x .078”	5 lbs.
GG281T	28	Solid	1.905	Glass Braid (Wrap avail.)	Glass Braid	.039 x .064”	3 lbs.
GG301T	30	Solid	3.025	Glass Wrap	Glass Braid	.033 x .053”	2 lbs.

ANSI: TYPE, E - Chromel / Constantan
Catalog Number	Guage Size	Conductors	*Ohms	Primary Insulation	Outer Jacket	Min-Max. O.D.	Est. Shpg. Wt. per M
GG201E	20	Solid	.704	Glass Braid	Glass Braid	.059 x .105”	8 lbs.
GG241E	24	Solid	1.780	Glass Braid	Glass Braid	.047 x .081”	4 lbs.