Think of a fuse as a small device designed to protect electrical devices against damage. They come in handy each time a Porsche electrical component overheats. This means with a fuse, you do not have to worry about current overloads which can cause fires which can in turn damage electrical components. In simple words, a fuse is all about limiting amperage. This is done by simply creating a small section of high pressure or creating another section that has a lower melting point compared to the rest of the electrical system.
The main concept behind the fuse is to have it fail before anything else does. So before replacing car lights that won’t work even after buying new bulbs, you might want to first inspect your car fuses. But with all the electrical devices that make up a modern Porsche, it would be hard to determine how many if not which type of fuse your Porsche needs. Frankly put, your car has several fuses which can fall under any of the following categories.
Standard Blade Fuses
It is the most common type of fuse used in cars. They are designed to burn out at specific amperage. You are more likely to find standard blade fuses under the dashboard of your car mostly because they control the interior electrical circuit of your car. Note that different companies manufacture standard blade fuses for different amperage ratings. Despite this fact though, most standard blade fuses can hold anything between 1 and 40 amps. Most, if not all standard blade types of fuses measure approximately 19 by 5 by 18mm. This is an approximate measurement since different manufacturers choose different measurements. The fuses can be either transparent or translucent so as to allow you to see whether or not the fusible section has burned. They can also be recognized by two separate blades that are designed to easily plug into the fuse panel.
Mini Blade Fuses
They are more or less a variation of the standard blade fuse. As a matter of fact, they almost look identical. However, they are smaller in size. Another key difference is the amount of amperage they can hold which is often anything between 2 and 30 amps. The main purpose of the mini blade fuse is to fit more fuses into smaller fuse boxes. A quick measurement should show a mini blade fuse to measure approximately 11 by 4 by 16mm.
Maxi Blade Fuses
Compared to both standard and mini blade fuses, maxi blade fuses are larger. They are mostly found inside the fuse box beneath the hood. They are designed to hold more current since they power devices that call for more current like the starter, the power window and the power antenna. That explains why they can handle 20 to 100 amps. They measure approximately 30 by 9 by 25mm.
Glass Tube Fuses
They come in different shapes, amperage ratings and even sizes. They stand out mainly because of their design which features a metal cap on both ends of the glass tube with a thin wire that runs down to the center of the tube. The amperage rating on glass tube fuses is always marked on the metal ends. They aren’t so popular mainly because they are used in older circuits and older vehicles.