Conductors for Automotive Wiring, Windings and Connections
Identify the circuit or joint first. For wiring, specify current, allowed voltage drop and termination. For windings, include available space, insulation and temperature-rise limits. For battery connections, include the terminal materials and welding process. Send the drawing and the qualification requirements for the vehicle program.

On this page
Choose by circuit or joint
Scroll horizontally to read all columns. Keep the conditions and units with each value.
| Use | Starting materials | Design inputs |
|---|---|---|
| Wiring harness | Copper or CCA round wire | Current, permitted voltage drop, route and termination |
| Motor winding | Copper or CCA flat or round conductor | Winding space, resistance, insulation and temperature rise |
| Battery connection | Copper or NCC strip and foil | Mating metals, welding method and contact resistance |
Define the program requirements
Send the OEM or program material specification, drawing revision and qualification stage. Check the actual termination or weld, thermal cycling and required records for that part. A material specification alone does not establish approval for the vehicle program.