A 20 amp mini blade fuse is a small electrical fuse used in vehicles to protect electrical circuits from overload. This fuse is easily installed in the fuse box and is designed to blow when overloaded, preventing damage to electrical components. The mini variant is more compact than standard blade fuses, making it suitable for modern vehicles with limited space. The transparent plastic housing allows for visual inspection, so you can quickly determine if the fuse has blown and needs to be replaced. 20 amps is the current rating for which this fuse is suitable.