Why Cars Have Fuses: What a Fuse Does & How They Work • Cars Simplified

Although fuses serve a very simple function, it is often a misunderstood part and that could lead to improper fuse replacement in more than one way. Steve explains fuses with a simple electrical diagram, showing different scenarios.

The type of fuse shown in most of this video is a maxi fuse, a rather large fuse that you are unlikely to find on a modern car, but the concepts are still the same! The size of fuses have decreased over the years so that they take up less space and more can be used.

• What is a fuse? A fuse is an electronic protection device designed to fail in the event of a problem, so the expensive and more difficult to replace parts are not damaged.
• How does a fuse work? A small piece of conductive metal is designed to handle just a certain amount of electrical current without issue. However, if that current level is exceeded, it will rapidly heat up and melt, breaking the circuit, and therefore protecting everything else in that circuit.

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[davemcguigan]

Thanks for showing this illustration, it is less con(fuse)ing now!

[leirahsing]

Thank you for taking your time to making this topic. Made it much much easier to understand. Great advice and tips!

[aaronmcdonald]

Thank you. I know it's a simple concept but you still clarified a few questions that other videos didn't quite answer. thanks a lot!

[Garage]

Nice overview! Lots of important lessons to learn in this quick vid.

[phishtahko]

Awesome job explaining everything and very simple to understand deserves more credit than its got.

[aldrinlapis]

Im just starting my apprenticeship as a mechanic and your video gave me a basic but complete understanding of fuse. Well done

[Maazin]

This video answered so many questions I had about electricity. Thank you so much!

[Snsndndnhshh]

Best teacher 👨‍🏫 . Very simple and easy to understand.

[GlasscelSimpson]

Excellent !!well explained making it so easy to understand good teaching.

[aunderskaizen]

Thank you 🙏
It was simple to innerstand, concise, and the visuals went a long way. 👍

[arosseries]

You are an excellent instructor.Keep up the excellent work.

[jpramirz]

Great video, explained it really well and now I have better understanding of it. Thank you

[richarddrawsstuff]

Very good presentation. I might need look over the video a few times to understand but that just me. Thank you for the video!

[michaell]

Great explanation to anyone without electrical knowledge.

[thewrriorcode]

Great video! This would explain why my new led dome light blew the fuse because it was about 4mm out so me being a noob I must of increased amps because it didn't fit properly lol. Lesson learned

[averagecrim]

i absolutelly love your channel searching about these things by car is not working at all so then generally learning about it at this channel it is! aha

[andrewmosesyanez]

so the im understanding that the purpose of a fuse is to break instead of another or other more expensive things essentially in case of a surge

[crazyartistvinitfiji]

Amazingly explained, i definitely learnt

[yowzakaan]

Answered all the questions in my head best video, people like you man makes Jobs so easy you definitely earn the subscribe my friend

[peternjenga]

This is so well explained. Thank you 🙏