HDT
HDT automotive wire with heavy-wall PVC insulation, SAE J1128 compliant and rated -40°C to +80°C/60V. Ideal for batteries, power circuits, and rugged off-road wiring.
HDT Automotive Wire – Heavy-Wall PVC Insulated Cable for 12V/24V Vehicle Power and Battery Systems
HDT automotive wire is a heavy-wall primary wire insulated with polyvinyl chloride (PVC), built for durability, flame resistance, and mechanical protection in harsh automotive environments. Designed for 12V and 24V electrical systems, HDT wire is ideal for car battery cables, power distribution circuits, and rugged off-road wiring applications.
With a temperature rating of -40°C to +80°C and voltage up to 60V, HDT offers superior insulation thickness compared to TWP and GPT, making it suitable for high-load, vibration-prone, or abrasion-sensitive environments. It is manufactured in compliance with SAE J1128 and widely used by OEMs and aftermarket harness manufacturers.
Features
Operating temperature range: -40°C to +80°C
Voltage rating: Up to 60V
Heavy-wall PVC insulation for increased abrasion and impact resistance
Stranded bare copper conductor for reliable conductivity
Complies with SAE J1128 Type HDT
RoHS and lead-free compliant
Application
Car battery cables and main power distribution lines
Battery-to-fuse box and alternator connections
Cabling for trucks, RVs, trailers, and agricultural machinery
Power wiring exposed to mechanical abrasion or fluid splash
Harsh environments in off-road and commercial vehicle systems
HDT wire provides enhanced toughness and heat resistance, making it the preferred PVC solution for demanding automotive power and battery applications where durability and electrical reliability are critical.
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.
関連製品
TXL
TXL automotive wire with thin-wall XLPE insulation, rated -40°C to +125°C. Offers heat resistance, flexibility, and durability for wiring harnesses and vehicle power systems.
GXL
GXL automotive wire with XLPE insulation, rated -40°C to +125°C. Provides heat resistance, flexibility, and durability for wiring harnesses, power, and control circuits.
SXL
SXL automotive wire with heavy-wall XLPE insulation, rated -40°C to +125°C. Delivers heat, oil, and abrasion resistance for engine, battery, and heavy-duty vehicle wiring.
GPT
GPT automotive wire with PVC insulation, SAE J1128 compliant and rated -40°C to +80°C. Ideal for dashboards, lighting, control modules, and low-voltage automotive circuits.
TWP
TWP automotive wire with thin-wall PVC insulation, SAE J1128 compliant and rated -40°C to +80°C/60V. Ideal for dashboards, control circuits, and light-duty signal wiring.