Reference Chart
Below is an easy to follow reference chart to help you decide which jacket type is right for you.
Cable Jacket Types
| Type | Description | AWG Size Range | Number of Conductors | Insulation / Jacket Material | Voltage | Applications |
| TPT | Tinsel Parallel Thermoplastic | 27 Tinsel | 2 | PVC / No Jacket | 250 | — |
| TS | Tinsel Service | 27 Tinsel | 2 | Rubber / Rubber | 125 | — |
| TST | Tinsel Parallel Thermoplastic | 27 Tinsel | 2 | PVC / PVC | 125 | — |
| SPT-1 | Service Parallel Thermoplastic – 1/64″ Insulation | 18 | 2 or 3 | PVC / No Jacket | 300 | Indoor use only: cords for lamps small fans, radios, televisions, etc. |
| SPT-2 | Service Parallel Thermoplastic – 2/64″ Insulation | 18-16 | 2 or 3 | PVC / No Jacket | 300 | Indoor use only: cords for lamps small fans, radios, televisions, etc. |
| SPT-3 | Service Parallel Thermoplastic – 3/64″ Insulation | 18-10 | 2 or 3 | PVC / No Jacket | 300 | Indoor use only: cords for lamps small fans, radios, televisions, etc. |
| SPE-1 | Service Parallel Elastomer – 1/64″ Insulation | 18 | 2 or 3 | Elastomer /No Jacket | 300 | — |
| SPE-2 | Service Parallel Elastomer – 2/64″ Insulation | 18-16 | 2 or 3 | Elastomer /No Jacket | 300 | — |
| SPE-3 | Service Parallel Elastomer – 3/64″ Insulation | 18-10 | 2 or 3 | Elastomer /No Jacket | 300 | — |
| SV | Service Vacuum | 18 | 2 or 3 | Rubber / Rubber | 300 | — |
Key
S Service Grade (also means extra hard service when not followed by J, V, or P)
H Hard Service
V Vacuum cleaner cord (also light duty cable)
P Parallel cord (also known as zip cord) – Always light duty
E Thermoplastic Elastomer (UL/NEC designation ONLY)
O Oil Resistant*
T Thermoplastic
W Outdoor-includes sunlight resistant jacket and wet location rated conductors (formerly “W-A”)
H Heater cable
VW-1 Flame retardant (Vertical specimen Flame Test)
FT2 Flame retardant (Horizontal specimen Flame Test)
Disclaimer
The information contained in this website is for general information purposes only. The information is provided by DSM&T Company Inc. and while we endeavor to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.