An electrical fuse is basically a safety device that stops the flow of electricity when there are problems.
Electrical fuses have two main functions, protecting the wiring and components from damage caused by too much current passing through them, and limiting short circuits within an appliance or circuit to prevent overheating which can cause fires.
Electrical fuses come in different sizes depending on the current (i.e., amps) they can handle without blowing out, and are marked with this information as well as their amperage rating.
Electrical fuses come in different types including cartridge fuses, plug-in fuses, mini fuse blocks or adapter plugs; each type has its own way of installing them into an electrical circuit.
Electrical fuses are rated in amps.
