Which Size Fuse For PC Monitor Power Supply?

[youdontwanttodoitlikethat]

I've just bought a new separate power supply (transformer/switching adaptor) for my LG flat screen pc monitor. It came with a 13 amp fuse fitted in the plug which I thought was a bit high. The old p s of the same spec had a 10 amp fuse fitted.

The p s spec is INPUT - 240V 1.2A 90VA,
OUTPUT - 12V 3.5A.

Would be grateful if someone could tell me what the correct fuse rating is.

 

[DetlefSchmitz]

There's really no good reason to change it, anywhere else in the world it wouldn't have a fuse at all.

 

[EFLImpudence]

Fuses are to protect cables; not appliances.

If it requires a lower rating to protect the device, it should have internal fuses.

 

[flameport]

3A if choosing between 3 and 13.

 

[Adam_151]

3A if choosing between 3 and 13.

The problem is that being a switchmode device, there is a good chance that sooner or later the inrush will take out a 3A fuse, normally after the fuse has been weakened by a fewsuch startups, and it happens that its switched on the point of the cycle that results in the most onerous inrush current

 

[ban-all-sheds]

There's really no good reason to change it, anywhere else in the world it wouldn't have a fuse at all.