This is a homebrew self-repairing 5A fuse which uses a PPTC or PolyFuse. I've also added an indicator lamp which shows when the fuse has blown.
The fuse doesn't actually blow; it just flips from a low resistance to a high resistance when its temperature reaches a certain point.By removing the high current path, the fuse cools down and its low resistance is restored.
The fuse doesn't actually blow; it just flips from a low resistance to a high resistance when its temperature reaches a certain point.By removing the high current path, the fuse cools down and its low resistance is restored.
cool video! However, is it possible it would take way longer time to blow if I use a small polyswitch (let say 100mA trip current) would be used? I bought some small polyswitch to use them on breadboard to protect ampmeter: students have bad tendency to mount ampmeter in parallel and blow fuse in multimeter! I was expecting polyswitch to blow few sec after trip current reached but nope! Any idea or hints to protect multimeter?
I used 230v AC, 3A PPTC and it works perfectly in times of electric short circuits.
Fixed my car battery charger thanks to this info. Thank you 🙂
Just ordered one now, Ty ❤️
NEW TECHNOLOGY OF REUSEABLE FUSE IS GREAT
Very nice demonstration
this is what i am looking for! thanks!
"Cleva girl…" I love the simplicity of application to complexity of provided solution.
So it is a bimetal fuse…
19 seconds ! still do v helpful vid to see them in action
thanks ,,, but why the lamp not coming ON during the current flow even before the fuse becoming hot since the lamp connected with the fuse in parallel
Does it get hot at any point?