What is primary wire?

Primary wire is a type of electrical wire that is commonly used in automotive and marine applications. It is designed to carry electrical current from the battery to various components in a vehicle, such as lights, motors, and electronics.

Primary wire is typically made of stranded copper wire that is insulated with a durable material such as PVC or cross-linked polyethylene. This insulation protects the wire from damage and prevents electrical shorts.

Primary wire is available in a variety of gauges, which determine the wire's thickness and the amount of current it can safely carry. Thicker wires have a lower gauge number and can carry more current, while thinner wires have a higher gauge number and are suitable for lower power applications.

Primary wire is color-coded to help differentiate between different circuits and components in a vehicle. Common colors include red (for power), black (for ground), yellow (for ignition), and green (for lighting).

Overall, primary wire is an essential component in any vehicle's electrical system, providing a reliable and safe way to transmit power to various components.