UL Cord Type Designations

Callout Description
XT Christmas Tree Thermoplastic
TPT Tinsel Parallel Thermoplastic
TS Tinsel Service
TST Tinsel Service Thermoplastic
SPT-1 Service Parallel Thermoplastic - 1/64” Insulation
STP-2 Service Parallel Thermoplastic - 2/64” Insulation
SPT-3 Service Parallel Thermoplastic - 3/64” Insulation
SPE-1 Service Parallel Elastomer - 1/64” Insulation
SPE-2 Service Parallel Elastomer - 2/64” Insulation
SPE-3 Service Parallel Elastomer - 3/64” Insulation
SV Service Vacuum
SVO Service Vacuum Oil-Resistant Jacket
SVOO SVO with Oil-Resistant Insulation & Jacket
SVT Service Vacuum Thermoplastic
SVTO SVT with Oil-Resistant Jacket
SVTOO SVTO with Oil-Resistant Insulation & Jacket
SVE Service Vacuum Elastomer
SVEO SVE with Oil-Resistant Jacket
SVEOO SVEO with Oil-Resistant Insulation & Jacket
SJ Service Junior
SJO SJ with Oil-Resistant Jacket
SJOO SJO with Oil-Resistant Insulation & Jacket
SJOOW SJO with Oil-Resistant Insulation & Jacket, Indoor/Outdoor use
SJT Service Junior Thermoplastic
SJTO SJT with Oil-Resistant Jacket
SJTOO SJTO with Oil-Resistant Insulation & Jacket
SJE Service Junior Elastomer
SJEO SJE with Oil-Resistant Jacket
SJEOO SJEO with Oil-Resistant Insulation & Jacket
S Service
SO Service with Oil-Resistant Jacket
SOO SO with Oil-Resistant Insulation & Jacket
SOOW SO with Oil-Resistant Insulation & Jacket, Indoor/Outdoor use
ST Service Thermoplastic
STO ST with Oil-Resistant Jacket
STOO STO with Oil-Resistant Insulation & Jacket
STOOW STO with Oil-Resistant Insulation & Jacket, Indoor/Outdoor use
SE Service Elastomer
SEO SE with Oil-Resistant Jacket
SEOO SEO with Oil-Resistant Insulation & Jacket
HPN Heater Parallel Neoprene
HSJ Heater Service Junior
HSJO HSJ with Oil-Resistant Jacket
HS Heater Service
HSO HS with Oil-Resistant Jacket

NOTE: Service parallel types all thickness for integral construction includes insulation and jacket combined. Elastomer is a thermoplastic material with elastomeric properties similar to rubber.