rewireable fuses

lennydavey · Posted: Sat May 12, 2007 1:10 pm Post Subject: rewireable fuses

I need to replace an old ceramic 4 pin rewireable 30 amp fuse, can i purchase one without having to replace the whole fusebox

Spark123 · Posted: Sat May 12, 2007 1:13 pm Post Subject:

Which manufacturer, model etc? Have you dropped it? Can you post a photo?
http://www.diynot.com/forums/viewtopic.php?t=73320

lennydavey · Posted: Sat May 12, 2007 1:23 pm Post Subject:

Its an mem. Just moved into a new house and the shower was wired into a 5 amp fuse with 15amp wire in it, but kept blowing the fuse wire. and have been told i need to replace it with the correct amp fuse and wire.

jj4091 · Posted: Sat May 12, 2007 1:31 pm Post Subject:

What sort of shower? How many kilowatts?Cable size?RCD protected?

Spark123 · Posted: Sat May 12, 2007 1:41 pm Post Subject:

Photo?
Sounds like a bit of bodging has been going on, one thing for sure you should not replace a fuse with anything bigger without ensuring the existing cable and arrangements are suitable for the additional load.
I think your best bet will be to get a qualified electrician in to take a look.

passerv · Posted: Sat May 12, 2007 3:16 pm Post Subject:

30 amp fuse, then 5amp fuse, with 15amp wire,

then replace with the correct fuse and wire????

I'm a bit confused

need more coffee.

penny dropped... fuse carrier

securespark · Posted: Sat May 12, 2007 7:51 pm Post Subject:

Many fuses are sized and can only safely accept a maximum size of fusewire.

What size is the shower?

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RF Lighting · Posted: Sat May 12, 2007 8:29 pm Post Subject:

Just had a look through the achives, and came up with these fuse boxes with ceramic fuses.

Does your fuse box look like any of these?

The first two are MEM, the third is made by 'falkes' (No I havn't either)

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mdbalson · Posted: Mon May 14, 2007 12:42 pm Post Subject:

Or does it look like this one

Which is a MEM Memera 3

http://i167.photobucket.com/albums/u125/mdbalson/P3160021.jpg

JohnD · Posted: Mon May 14, 2007 12:57 pm Post Subject:

RF, the second "MEM" looks quite a common type, I think I've converted those to Cartidge fuses in the past (MEM used to sell a dark brown cartridge holder that fitted it to replace the porcelain rewirable one)

RF Lighting · Posted: Mon May 14, 2007 6:01 pm Post Subject:

John, This is the fusebox pictured above with the cover on.

Just realised that is the first fuse box

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RF Lighting · Posted: Mon May 14, 2007 6:28 pm Post Subject:

JohnD Here is the other switch fuse with the cover on.

Are you sitting down?

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JohnD · Posted: Mon May 14, 2007 6:47 pm Post Subject:

very neat.

Basement of a block of flats, is it?

RF Lighting · Posted: Mon May 14, 2007 6:51 pm Post Subject:

Its a 5 storey office block. One switch fuse for each office. Each floor has two offices.

Can't lay claim to that install. It's older than me

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JohnD · Posted: Mon May 14, 2007 6:52 pm Post Subject: