Thermocouple Wire

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The most accurate results are obtained when using the same type of lead wire as the thermocouple. The table below shows the most commonly used wires. All are 20 GA duplex.

Other wire can be furnished on request.

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Type	Wire Type	Insulation	Part Number
J	Solid	Glass/Glass	J20-1-304
J	Stranded	Glass/Glass	J20-3-302
J	Stranded	Glass/Glass w/ S.S. Overbraid	J20-3-S-302
J	Solid	PVC/PVC	J20-1-PVC
J	Solid	Teflon/Teflon	J20-1-507
J	Stranded	PVC/PVC	J20-3-PVC
J	Solid	PVC/Mylar/PVC	J20-5-PVC
J	Stranded	PVC/Mylar/PVC	J20-7-510
K	Solid	Glass/Glass	K20-1-304
K	Stranded	Glass/Glass	K20-3-302
K	Solid w/ S.S. Overbraid	Glass/Glass	K20-1-S-304
K	Solid	PVC/Mylar/PVC	K20-5-PVC
K	Solid	Teflon/Teflon	K20-1-TEF

 

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This lead wire consists of stranded nickel plated copper conductor insulated with Teflon, glass, glass, Teflon (TGGT), or 27% nickel clad conductor insulated with glass reinforced mica (MG) for optimum dielectric strength under extreme temperatures.  Both are U.L. and C.S.A. approved.

 

Wire Size	TGGT Part # 480° F	MG Part # 1200° F	Nominal Ampacity
20 GA	TGGT20	MG20	10
18 GA	TGGT18	MG18	18
16 GA	TGGT16	MG16	23
14 GA	TGGT14	MG14	32
12 GA	TGGT12	MG12	42
10 GA	TGGT10	MG10	54
8 GA	TGGT08	MG08	71
6 GA	TGGT06	MG06	95

 

TGGT (1) Stranded or solid “A” nickel, nickel-plated copper, nickel-coated copper, nickel-plated iron. (2) PTFE tapes (3) Glass serving (4) Treated glass braid

MGT (1) Stranded or solid “A” nickel, nickel-coated copper (2) Mica tapes (3) Treated glass braid

 

Ampacity Ratings
Temperature Derating Factors

 

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Flexible Stainless Steel Armor Cable

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Used to protect lead wire against abrasion or physical damage in hazardous environments and provides protection from excessive flexing.

Cable ID Cable OD Part Number 1/8″ .210″ H600 3/16″ 9/32″ H601 ¼” 11/32″ H602 3/8″ ½” H603 ½” 5/8″ H604 5/8″ ¾” H605 ¾” .890″ H606

 

Fiberglass Sleeving

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High temperature fiberglass sleeving provides an excellent secondary insulation for greater dielectric strength and for added protection against abrasion. Max. temperature 1000°F.
	Sleeve Size Nominal ID Part Number 18 .040 SLF18V 8 .133 SLF08 7 .158 SLF07 5 .186 SLF05 4 .224 SLF04 3 .234 SLF03 2 .263 SLF02 0 .330 SLF00 3/8 .387 SLF38 ½ .524 SLF12 ¾ .750 SLF34

 

Heavy Wall Silicone Sleeving

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Sleeving for extreme conditions to provide an excellent secondary insulation for greater dielectric strength and for added protection against abrasion and wire contamination. Max. temperature 500°F.
Sleeve Size Nominal ID Part Number 8 .133 HWSL08 6 .165 HWSL06 4 .208 HWSL04 3 .234 HWSL03 2 .263 HWSL02

Standard Wire Design Technical Data

 

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