Fuses

Fuses are overcurrent protection devices wired in series with critical vehicle circuits, including power distribution, lighting, and accessory systems. They contain a metal filament designed to melt and break the circuit if current exceeds a specified amperage rating, preventing component damage and potential fire hazards. Available in various types – blade, cartridge, and plug-in – fuses are characterized by their ampacity, physical size, and operating time (fast-blow or slow-blow). Color-coding and amperage marking are standardized for quick identification and replacement. Modern vehicles often utilize fuse boxes located in the engine compartment, under the dashboard, and sometimes remotely within the vehicle.