Identifying The Correct Fast Blow Fuses?

[Richard10002]

Just been to the boatyard to get a/some 5A fast Blow fuses for the Autohelm Course Computer.

Asked for fast blow, was assured that the ones I have bought are fast blow, but want to try and be certain.

The fuses which have blown have stamped on them:

5A / 125V there might be an F in front of the 5A, in fact it is an F with half of a rectangle around it, looks like an L... the same F with L symbol is printed on the fuse holder. The fuse wire in the glass is/was kind of spirally looking.

I seem to have been sold 3 different types of 5A fuse

1 has stamped:

T 5A 250V

1 has stamped:

F 5A 250V I AC or could be L AO

1 has stamped:

F 5A

All the fuse wires are ordinary looking wire... not curly or spirally.

Any ideas whether I can use any of these fuses

Cheers

Richard

 

[Frontier]

They can look different, here are some examples, the other link may be usefull it has info on the markings.

Good luck

Types of fast blow fuses

Markings

 

[savageseadog]

They will all do the the job. A slow blow fuse would probably do the job anyway, it's not that critical.

 

[Richard10002]

Looks like the voltage doesnt matter much, 250V fuse in a 12V circuit is fine, 250V fuse in a 1000V circuit not fine.

Looks like the F means fast blowing and the T means slow blowing.

Thanks for the info... very enlightening.

Richard

 

[VicS]

[ QUOTE ]
Just been to the boatyard to get a/some 5A fast Blow fuses

[/ QUOTE ] A boatyard to buy fuses???????

Get what you actually want from an electronics component supplier such as Maplin. 79p - 99p for 10 depending on the size. There are 3 branches in Manchester.

The fast blow fuses should be marked with an "F". A "T" marks timed blow which are for use in applications where high start up currents or surges are expected.

 

[Richard10002]

Thanks for that... very reassuring
Cheers

Richard

 

[pvb]

Read the fine print....

[ QUOTE ]
There are 3 branches in Manchester

[/ QUOTE ] He's on the boat in Portugal.

 

[Richard10002]

I'm on the boat in Portugal <g>

Maplins would be my 1st port of call at home, but out here with no car, I just went where i was reasonably sure I could get them.. fast.

Cheers

Richard

 

[Richard10002]

Re: Read the fine print....

Glad to see someone's paying attention <g>

 

[Evadne]

Re: Read the fine print....

Not always as cheap as Maplin, RS components are in Portugal. If your Portuguese is less than perfect, you can find the order code on the UK (or any other language of your choice /forums/images/graemlins/smile.gif ) site then order on the Portuguese site.

Ah, just thought, you will probably need to set up an account, so it may not be that easy, unless your friendly local boatyard has one and will order the bits for you.

http://www.rs-portugal.com/

http://rswww.com/

It might come in useful anyway.
Dave

 

[philmayfield]

Re: Read the fine print....

It's "Flink" and "Trag" - fast and slow in German

Don't ask why!

Phil

 

[richardf]

Re: Read the fine print....

Don't know about Portugal, but after several years RS refused to supply me in Spain from UK any longer, and forced me to use their Spanish subsidiary Amidata, whose prices were outrageous.
I went to Maplin after that.