What is the primary purpose of fuses in an automotive electrical system?

Fuses serve a critical role in automotive electrical systems by providing protection against overcurrent situations. When too much current flows through a circuit, it can cause wires to overheat, potentially leading to component damage or even fires. Fuses are designed to break the circuit when the current exceeds a specific threshold, thereby interrupting the flow of electricity and protecting the sensitive components in the system. By ensuring that excessive current does not reach vital parts, fuses help maintain the integrity and safety of the vehicle's electrical system, preventing extensive damage and costly repairs.