Reading Fuse ID

[Gotrek]

I have a fuse how can I tell if it's fast blow, standard or delay?

F6.3AL250V

I gather

F = Fuse - *EDIT* F is for Fast Blow as per a search on this forum (always search I was going by the old military fuse id)
6.3A=6.3 Amps
L=No clue
250V=250 volts.

This is a glass tube style fuse.

 

[Gotrek]

Part two question Can I replace it with a 6amp fuse? or 6.5 amp fuse which would be better the local electronics store does not carry 6.3 amps and I don't have time to mail order.

 

[freeskier89]

Here is a link with some relavant information.
**broken link removed**

It seems to be a normal general fuse. Well of course, a 6A would be safer than a 6.5A, but I doubt 200mA would make too much of a difference. I would go with the 6A and then if it blows really soon, then you know to go with the 6.5A

 

[Gotrek]

Thank-You so much this is the info I was looking for.

Thanks again.

6A are easier to find then 6.5 anyways so I'll try with that.

 

[Nigel Goodwin]

Perhaps you might all like to fill your locations in?, so we might have a clue where you are?. (I'm presuming the USA?)

As far as I'm aware a 6.3A fuse is a standard value, 6A and 6.5A aren't!.

 

[Gotrek]

Will do the forum software is different from when I was last here.

The only 6.3 amp fuses I managed to find were the larger 7x32mm type and are all slow blow.

I'm in canada. 6amp is all I could find at the local circuit city adn the specialized electronics store.

I just purchased a 7x32mm 6 amp fast acting fuse instead of 6.3 amp fast acting 5x20mm fuse I have. will see how it goes.

 

[Nigel Goodwin]

Will do the forum software is different from when I was last here.

The only 6.3 amp fuses I managed to find were the larger 7x32mm type and are all slow blow.

I'm in canada. 6amp is all I could find at the local circuit city adn the specialized electronics store.

I just purchased a 7x32mm 6 amp fast acting fuse instead of 6.3 amp fast acting 5x20mm fuse I have. will see how it goes.

What's it in?, 6.3A is a standard value in 20mm fuses, and even in the old 1.25 inch fuses as well - perhaps North America is different?.

 

[Gotrek]

I would assume so I do not know I do know 1 1/4" fuses tend to be more common.

5x20mm are mini fuses and are usually for special applications

I truly do not know.

with most of our electroncs made abroad you'd think it would be the same as asia

 

[Nigel Goodwin]

I would assume so I do not know I do know 1 1/4" fuses tend to be more common.

5x20mm are mini fuses and are usually for special applications

That's probably mainly North America?, almost all the electronics I see uses 20mm fuses, and has done for decades - I even stopped stocking 1-1/4 inch fuses at work probably 30 years ago?. Probably the last place to use them was car radios?, but they still changed years ago as well.

 

[Gotrek]

I've always used the small ones as well but first time I needed one with these specs and couldn't find a small one (5 amp is the biggest)

I believe cars are the reason they are still around alot of older cars used 1 1/4" tubes. they didn't switch to blade style fuses until the mid 70's