Fuse vs Relay: What's the difference?

This video shows the main difference between a fuse and a relay.

[charlesrainesmusic]

Thank you for making a video that actually explains it nicely.

[rogerflores]

WoW, finally, easy to understand laymans term, nice video, when will people or instructors make it easy for common people to understand, you sir should be a professional translator, more power!

[zmcchen]

Thank you. This is very educational since my honk just stopped working.

[marctodd]

2014 BUICK LACROSSE TRUNK OPENER BUTTON NOT FUNCTIONING. FUSE IS NOT BLOWN. HOW TO REMOVE RELAY 1 INTERIOR FUSE BOX. THANK YOU.

[ARJ]

I have a pop up camper and there is a relay for the motor that lifts the top of camper. Well the relay has rusted out and I was thinking about putting a fuse instead. Do you think that would cause any damage to motor?

[rashaadobaray]

plain simple and to the point. thanks man.
my fog lamps are not switching on. i have changed the fuse but when i switch them on, they dnt light up and i can hear a clicking sound coming from the relay. could it be the relay that is faulty? i have bought a new set of relays today and will replace them all tonight when i get home and see from there. the foglamps are brand new with new bulbs.

[glendavis]

It would have been helpful to comment on if relays breakdown. If they do does the item it is connected to stop working?

[chanjasonsk]

Why are some upside down and others not? Does it depend on the direction..? So would need to test before inserting?

[Chris-dozj]

Can you talk about trouble shooting the convertible top?? Maybe which fuse controls it

[ganggreen]

The car horn in my 2000 Malibu just went off continuously in the middle of the night and I had to pull out the relay to make it stop. So embarrassed that it must have woke up the Neighbourhood. The starter has been fried for the last week and that may have something to do with it?

[joeblow]

I'm putting air horn on my truck and I want to use a 40 amp fuse instead of the relay and use the switch for the ground. Is this safe

[Rubz]

Hi. im actually making a project which involves the fuel pump fuse.I watched a video wherein the guy took out the fuel pump fuse which made the engine to turn off. Do you perhaps know about the connection between the fuel pump fuse and the fuel pump itself?

[JDMHaze]

I have a RX 300 in the DRLs stopped working, (The highbeams are the same bulb is the DRL and they still work, the DRL fuse is fine and I pulled the relays out independently and sent power to them from a 12 V plug And they each clicked, however there is no power going to the DRL FUSE, but This truck has three DRL relays God knows why... I looked at the wiring diagram and it makes no sense, The power goes from the ECU>>to 1 of those the relays>> then to the fuse>> then to the next to drl relay its weird What do you think there really isn't giving the power of the fuse? I'm trying to figure out if the relay powers the fuse or vice versa because the diagram made it seem like both do

[BRado]

does a fuse regulate power in any way?

[hadidelbani]

Hallo
If i remove the ABS-Fuse, will the whole traction system stops ?

[GulfCoastToad]

Sorry, still not getting it. No one seems to be able to explain WHY relays are necessary, and WHEN they should be used (and conversely, when they are not necessary).