TWP Automotive Wire – Thin-Wall PVC Insulated Wire for Low-Voltage Vehicle Applications
TWP automotive wire is a thin-wall primary wire insulated with polyvinyl chloride (PVC), designed for low-voltage 12V and 24V electrical systems in vehicles. Known for its flexibility and space-saving profile, TWP wire is widely used in automotive dashboards, interior control circuits, and low-current signal routing where lightweight, compact insulation is required.
With a temperature rating of -40°C to +80°C and voltage up to 60V, TWP wire offers sufficient thermal and mechanical performance for light-duty applications. It complies with SAE J1128 standards and is suitable for OEM harness manufacturing and aftermarket repairs.
Key Features
Operating temperature range: -40°C to +80°C
Voltage rating: Up to 60V
Thin-wall PVC insulation for compact harness layouts
Stranded bare copper conductor for flexibility
Complies with SAE J1128 specifications
RoHS compliant
Application
Internal dashboard and control panel wiring
Signal and low-current circuits in passenger cars
Harnesses for light-duty vehicles and trailers
Compact routing within automotive infotainment units
Interior lighting and switch modules
TWP wire offers cost-effective, compact, and flexible performance for low-voltage vehicle wiring needs, especially in space-constrained environments where weight and bend radius matter.
Mechanical and Thermal Properties – SAE J1128 Testing
| SAE Cable Type | Min. Tensile Strength (MPa) | Min. Tensile Strength (psi) | Min. Elongation (%) | Test Temp (°C ±2°C) | Temp Class Rating (°C ±2°C) |
| TWP / GPT / HDT | 11 | 1600 | 125 | 110 | 80 |
| STS / HTS | 7 | 1000 | 150 | 110 | 80 |
| TXL / GXL / SXL | 10 | 1500 | 150 | 155 | 125 |
| TWE / GTE / HTE | 11 | 1600 | 200 | 150 | 120 |
Note: The above accelerated aging temperatures are appropriate for insulating materials currently specified in this standard. Different test conditions may be necessary for other materials.