Thermocouple Wire Insulation

Continuous Operating Temperatures for Insulated Thermocouple Wire

		Temperature Ratings		Physical Properties
Part #	Type of Insulation	Max Continuous Temp.		Abrasion Resistance	Moisture Resistance	Chemical Resistance
P300	Fluoropolymer	300°C	572°F	* * * *	* * * *	* * * *
301	Vitreous Silica Braid / Vitreous Silica Braid	871°C	1600°F	* *	*	*
302	Double Glass Braid Singles / Glass Braid Duplex	482°C	900°F	* * *	* * *	* * *
303	Enamel, Glass Braid Singles / Glass Braid Duplex	482°C	900°F	* *	* * *	* * *
304	Standard Glass Braid Singles / Glass Braid Duplex	482°C	900°F	* *	* * *	* * *
305	Double Glass Wrap Singles / Glass Braid Duplex	482°C	900°F	* *	* * *	* * *
306	Non Impregnated Glass Braid / Non Impregnated Glass Braid Duplex	482°C	900°F	*	*	* *
308	Double Cotton Braid Singles / Cotton Braid Duplex	88°C	190°F	* * *	* * *	*
310	Skive TFE Tape, TFE Impreg Glass Braid Singles / Fused TFE Tape Duplex	260°C	500°F	* * *	* * * *	* * * *
311	“S” Glass Braid Singles/ S Glass Braid Jacket No Binder	704°C	1300°F	* *	* *	* * *
321	“S” Glass Braid Singles/ S Glass Braid Jacket With Binder	704°C	1300°F	* *	* *	* * *
350	Ceramic Fiber Braid/Ceramic Fiber Braid Duplex	1204°C	2200°F	* *	* *	* *
355	Ceramic Fiber Braid/Ceramic Fiber Braid Duplex Medium Build	1204°C	2200°F	* *	* *	* *
365	Vitreous Silica Braid / Vitreous Silica Braid Medium Build	871°C	1600°F	* *	*	*
501	Polyvinyl (PVC)/ Nylon	105°C	221°F	* * * *	* * * *	* * *
502	Polyvinyl (PVC) Singles / Polyvinyl (PVC) Duplex	105°C	221°F	* * *	* * * *	* * *
504	Nylon Singles / Nylon Duplex	150°C	302°F	* * * *	* * *	* * *
505	Polyvinyl (PVC) Single / Fused for Ripcord Duplex, No Jacket	105°C	221°F	* * *	* * * *	* * *
506	FEP Singles /FEP Duplex (30 AWG and Smaller)	204°C	400°F	* * * *	* * * *	* * * *
507	FEP Singles/ FEP Jacket (29 AWG and Larger)	204°C	400°F	* * * *	* * * *	* * * *
508	Wrapped and Fused TFE Singles / Wrapped and Fused TFE Duplex (twisted and shielded)	260°C	500°F	* * *	* * * *	* * * *
509	FEP Singles / Twisted pair with drain wire / Alum. mylar or Polyimide / FEP Duplex (twisted and shielded)	204°C	400°F	* * * *	* * * *	* * * *
510	PVC Singles / Twisted pair with drain wire / Alum. mylar / PVC Duplex (twisted and shielded)	105°C	221°F	* * *	* * * *	* * *
511	Polyimide Tape Wrap Singles/ Twisted Pair No Jacket	260°C²	500°F	* * * *	* * * *	* * * *
512	Polyimide Tape Wrap Singles with Colored Tracers/ Polyimide Tape Wrap Jacket	260°C²	500°F	* * * *	* * * *	* * * *
513	Polyimide Singles / Polyimide Duplex	260°C²	500°F	* * * *	* * * *	* * * *
514	ETFE Singles / ETFE Duplex	150°C	302°F	* * * *	* * * *	* * * *
515	ETFE Singles / Twisted Pair / ETFE Duplex	150°C	302°F	* * * *	* * * *	* * * *
516	PFA Singles / PFA Duplex	260°C	500°F	* * * *	* * * *	* * * *
517	PFA Singles/ Twisted Pair or 4 Conductors/ Aluminum Polyimide Shield and Drain/ PFA Jacket	260°C	500°F	* * * *	* * * *	* * * *
520	TFE Enamel Singles/ FEP Ripcord	204°C	400°F	* * * *	* * * *	* * * *
521	S Glass Braid Singles/ S Glass Braid Jacket with Binder	704°C	1300°F	* *	* *	* * *

²Polyimide film will withstand 316°C but the laminate FEP layer will dissolve at temperatures above 260°C

KEY
*	Poor
* *	Fair
* * *	Good
* * * *	Excellent

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