A fuse (short for fusible link), is a protection device for electrical things. It’s an important component that has a metal wire or strip that melts when too much current flows and breaks the circuit in which it is connected and protects the electrical device.

Fuses are very important to protect us against fire or damage. When too much current flows through a wire, it may overheat and be damaged or even start a fire.

Fuses are selected to allow normal current to flow, but quickly interrupt a short circuit or overload condition. Therefore, fuses are used for short circuit protection.

There are many shapes and sizes for fuses see the picture below.



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