What does a 20 amp fuse look like?

A 20 amp fuse typically has a cylindrical shape and is often made of glass or plastic. It usually features a metal end cap and a visible wire element inside that melts to break the circuit when overloaded. The fuse may be marked with "20A" or similar labeling to indicate its amperage rating. In automotive settings, a 20 amp blade fuse is often colored red for easy identification.