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UL Cord Construction & Ratings

Cord type *	AWG Size Range	Number of Connectors	Conductor Insulation	Jacket **	Temperature Rating ***		Voltage Rating
					standard	other
TPT	27 (tinsel)	2	.030 Plastic		60		250
SP-1	18	2 or 31	.030 Rubber		60		300
SPT-1	18	2 or 31	.030 Plastic		60	"75,90,105"	300
SP-2	18-16	2 or 31	.045 Rubber		60		300
SPT-2	18-16	2 or 31	.045 Plastic		60	"75,90,105"	300
SP-3	18-12	2 or 31	.060 Rubber2		60		300
SPT-3	18-10	2 or 31	.060 Plastic2		60	"75,90,105"	300
TS	27(tinsel)	2	.015 Rubber	.031 Rubber	60		125
TST	27(tinsel)	2	.015 Plastic	.031 Plastic	60		125
SV	18	2 or 31	.015 Rubber	.030 Rubber	60	"75,90"	300
SVE	18-17	2 or 31	.015 Elastomer	.030 Elastomer	105		300
SVEO	18-17	2 or 31	.015 Elastomer	.030 Elastomer	105		300
SVO	18	2 or 31	.015 Rubber	.030 Neoprene*	60	"75,90"	300
SVT	18-17	2 or 31	.015 Plastic	.030 Plastic	60	"75,90,105"	300
SVTO	18-17	2 or 31	.015 Plastic	.030 Plastic	60	"75,90,105"	300
SJ	18-10	"2,3,4"	.030 Rubber3	.030 Rubber3	60	"75,90"	300
SJE	18-10	"2,3,4,5"	.030 Elastomer2	.030 Elastomer2	105		300
SJEO	18-10	"2,3,4,5"	.030 Elastomer2	.030 Elastomer2	105		300
SJO	18-10	"2,3,4"	.030 Rubber3	.030 Neoprene*3	60	"75,90,105"	300
SJT	18-10	"2,3,4"	.030 Plastic3	.030 Plastic3	60	"75,90,105"	300
SJTO	18-10	"2,3,4"	.030 Plastic3	.030 Plastic3	60	"75,90,105"	300
S	18-2	2 or more	.030 Rubber2	.060 Rubber2	60	"75,90"	600
SE	18-2	2 or more	.030 Elastomer2	.060 Elastomer2	105		600
SEO	18-2	2 or more	.030 Elastomer2	.060 Elastomer2	105		600
SO	18-2	2 or more	.030 Rubber2	.060 Neoprene*2	60	"75,90"	600
ST	18-2	2 or more	.030 Plastic2	.060 Plastic2	60	"75,90,105"	600
STO	18-2	2 or more	.030 Plastic2	.060 Plastic2	60	"75,90,105"	600
HPN	18-12	2 or 31	.045 Neoprene		90	105	300
HSJ	18-12	"2,3,4"	.030 Neoprene2	.030 Rubber2	90		300
HSJO	18-12	"2,3,4"	.030 Neoprene2	.030 Neoprene*2	90		300
HS	14-12	"2,3,4"	.045 Neoprene2	.060 Rubber2	90		300
HSO	14-12	"2,3,4"	.045 Neoprene2	.060 Neoprene*2	90		300

*Types SVO, SVTO, SJTO,SO,STO, HSFO and HSO have jackets which are also recognized for oil resistance at maimum temperature of 60° C. Types SJ, SJO, SJT, SJTO,S, SO, ST, and STO may also be made for outdoor use, with "W" on the jacket. 3-wire SJT may be made in special low-leakage constructions for medical equipment cords.

** Where no jacket is shown, the construction is integral or flat style with insulation also serving as jacket.

*** For cordage ratings higher than 60° C, the temperature limit is printed on the outside of the jacket. This does not apply to heater cordage type HPN, rated 90° C, or 105° C. also, for heature HPN, rated 90°C, or 105°C, also for heature cordage types HSJ, HSJO, HS, and HSO, the core is rated 90°C, while temperature printed on outside applies only to jacket.

1 Recognized in three conductors when third or center conductor (with Green or Green/Yellow stripe) is used for equipment grounding.

2 Insulation and jacket thickness depend on cordage size. Thickness shown are for 18 and 16 AWG.

3. Insulation and jacket thickness depend on cordage size. No. 12 AWG requires .030" conductor insulation thickness and .045" jacket thickness No. 10 AWG requires .045" conductor insulation thickness and .060" jacket thickness.

* Chlorosulfonated polyethylene and other UL Listed materials may be used as jacketing material for such cordage as SVO, SJO, SO, and HPN to provide oil resistance and/or colors with excellent stability in all shades.

NOTES: Types TPT, SPT-1,SPT-2,SPT-3,HPN (two conductors only), and SVO, SVT, SJO, SJT, SO, and ST may be made in retractile form.

The term Elastomer refers to thermoplastic elastomer