Replace your old wired fuses with these breakers! £9.19 @ Screwix - HotUKDeals
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I have just bought these breakers because I couldnt find a wired replacement for a broken plug-in fuse. much cheaper than BnQ and free next day delivery if you spend over £50, £5 otherwise. Replaced all the old fuses and now if something goes wrong its just a switch rather than a fiddley wire. available in 6 amp and up!

p.s. this model is for wylex consumer units
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janceyb Avatar
6y, 5m agoFound 6 years, 5 months ago
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#1
hi,
how does this work with different amp fuses,
e.g i have a
5AMP (lights)
10AMP(cant remember but maybe plugs)
15AMP (shower i think)

are you saying i can replace all of these different ratings with the same new fuse?
or do i need to get different ratings?
#2
urban_i
hi,
how does this work with different amp fuses,
e.g i have a
5AMP (lights)
10AMP(cant remember but maybe plugs)
15AMP (shower i think)

are you saying i can replace all of these different ratings with the same new fuse?
or do i need to get different ratings?


No, op isnt saying anything of the sort, the fuse op linked is rated at 16AMP, so for lights,, you need the 5AMP version..

Op is refering to those old fuses where you used a fuse wire.
#3
urban_i
hi,
how does this work with different amp fuses,
e.g i have a
5AMP (lights)
10AMP(cant remember but maybe plugs)
15AMP (shower i think)

are you saying i can replace all of these different ratings with the same new fuse?
or do i need to get different ratings?


I would think you'd need different rated trip switches....which they have listed: http://www.screwfix.com/cats/A331832/Electrical-Supplies/Consumer-Units/Wylex-MCBs-Incomers
#4
They do a range for different amps

Click on the 'Wylex MCBs & Incomers link' on that page

Screwfix Nos

48030 6A
80070 20A
34544 16A
87979 32A
77992 40A
#5
These are massively over sensitive. You'll spend all you time under the stairs resetting them.
#6
termite;7957807
These are massively over sensitive. You'll spend all you time under the stairs resetting them.


What, these particular units or mcb's generally?

Never so much as reset one once in 12+ years here - Wylex consumer unit, as these are designed for.
#7
nihcaj
What, these particular units or mcb's generally?

Never so much as reset one once in 12+ years here - Wylex consumer unit, as these are designed for.


Must be just our street then.
#8
These are not particularly cheap, they are widely available -
First place I clicked on was this:

http://www.milliesoft.co.uk/index.php?option=com_content&view=article&id=9:iplayer-mce&catid=1:software&Itemid=11
8.16 each inc. VAT
Delivery is 6 quid.

I dare-say a bit of hunting might find them either cheaper, or perhaps even locally available, as they are such a common bit of gear
#9
Got some in B&Q a few years back. Rarely trip - mostly only when a halogen bulb blows, which seems quite frequent (about every quarter). And much more convenient than replacing fuse wire.
#10
termite;7957940
Must be just our street then.


I would be worried if your installation keeps tripping out without an obvious reason, and a test by a qualified electrician might not be a bad idea.

MCBs are more sensitive than even cartridge fuses, but shouldn't trip any more than fuses do in practice.

ELCBs can be a bit more "trippy," but again that's usually due to a genuine fault - you usually get the message which one when you turn on that particular appliance though!
#11
I got these identical items brand new a while ago from eBay for £3 each, shop around I reckon that you will find them cheaper than this.
#12
You can get plenty of the normal circuit breakers much cheaper but these ones look like direct replacements using you old consumer unit.It might be better to replace your box with a new type of box and fit new breakers that you can get from someone like ToolStation.com for £2.99 each The consumer boxes are about £20.
#13
here is a link to toolstation far cheaper than screwfix as i find on nearly everything

http://www.toolstation.com/shop/Electrical/Circuit+Protection/GE+Minitrip+15A+Blue/d190/sd2615/p47919
#14
to replace the box it will cost £20 + electrician labour which is not cheap?
#15
urban_i
hi,
how does this work with different amp fuses,
e.g i have a
5AMP (lights)
10AMP(cant remember but maybe plugs)
15AMP (shower i think)

are you saying i can replace all of these different ratings with the same new fuse?
or do i need to get different ratings?


I replaced 5amp with 6
15 with 16
and 30 with 32
#16
krazyk555
here is a link to toolstation far cheaper than screwfix as i find on nearly everything

http://www.toolstation.com/shop/Electrical/Circuit+Protection/GE+Minitrip+15A+Blue/d190/sd2615/p47919


Will those Ge minitrips definitely fit a Wylex consumer unit? (they do look the same) I've got a very old Wylex consumer unit with a mix of MCBs and cartridge fuses that I installed in my shed and I think I paid more than that the last time I needed a couple of 20Amp cartridge fuses in a hurry. My industrial table saw and jointer both tend to blow fuses occasionally because of their high start up current, so I've been meaning to replace them with MCBs.

Incidentally, the MCBs stick out further than the cartridge fuse carriers, so purchasers may find the cover to access the fuses can't be refitted once the MCBs are plugged in (well mine doesn't fit over them anyway).
#17
Just got a 8 way consumer unit with RCD on the inlet for my shed, loaded with 2x6a, 3x16a and 3x32a, cost £25 delivered from the bay.
#18
Skybird;7958432
You can get plenty of the normal circuit breakers much cheaper but these ones look like direct replacements using you old consumer unit.It might be better to replace your box with a new type of box and fit new breakers that you can get from someone like ToolStation.com for £2.99 each The consumer boxes are about £20.


The whole point of these compatible units being available is to save on time labour and effort.
They take seconds each to fit.
#19
tek-monkey;7959339
Just got a 8 way consumer unit with RCD on the inlet for my shed, loaded with 2x6a, 3x16a and 3x32a, cost £25 delivered from the bay.


..... and it's a lot of work to fit on an existing installation, replacing the entire consumer unit.
#20
krazyk555;7958508
here is a link to toolstation far cheaper than screwfix as i find on nearly everything

http://www.toolstation.com/shop/Electrical/Circuit+Protection/GE+Minitrip+15A+Blue/d190/sd2615/p47919


Thanks for the link anyway - I had no idea I was so near a branch!
#21
krazyk555
here is a link to toolstation far cheaper than screwfix as i find on nearly everything

http://www.toolstation.com/shop/Electrical/Circuit+Protection/GE+Minitrip+15A+Blue/d190/sd2615/p47919


Far better service than Screwfix, ... Screwfix went downhill as soon as B&Q too it over, Toolstation is owned by the original owners of Screwfix I believe.

Free delivery over £10 as well.

I avoid Screwfix these days.
#22
tek-monkey
Just got a 8 way consumer unit with RCD on the inlet for my shed, loaded with 2x6a, 3x16a and 3x32a, cost £25 delivered from the bay.


Which is fine if you are a electrician and can certify the installation after you have done the work. Without a valid certificate you may find your house un-insured in the event of a claim and it may cost you when you come to sell the house!
#23
Inactive
I got these identical items brand new a while ago from eBay for £3 each, shop around I reckon that you will find them cheaper than this.


Be very careful where you buy electrical items from as there has been quite a few cases of items such as this coming in from China which have nothing inside them but a switch! In other words they don't have any over current protection mechanism!
#24
HotBot
Be very careful where you buy electrical items from as there has been quite a few cases of items such as this coming in from China which have nothing inside them but a switch! In other words they don't have any over current protection mechanism!


Thanks, yes I was aware of that, mine are genuine, they were just surplus stock from a genuine electrical retailer, all tested and working.:thumbsup:
#25
HotBot
Which is fine if you are a electrician and can certify the installation after you have done the work. Without a valid certificate you may find your house un-insured in the event of a claim and it may cost you when you come to sell the house!


Not if you don't wire it into the mains IIRC? Always used to be that if it had a plug on it, it wasn't a fixed installation and therefore does not need certification. When I got this house it had an extension lead from the IP66 socket outside, running down the garden and into the shed. I just replaced it with some armoured cable, ran it into the consumer unti and ran all plugs/lights from that. Did the same for my step dad about 16 years ago, so the laws may have changed since!

I doubt I'd do the house one myself, although I know people that can certify it for me if needed.
#26
tek-monkey;7982964
Not if you don't wire it into the mains IIRC? Always used to be that if it had a plug on it, it wasn't a fixed installation and therefore does not need certification. When I got this house it had an extension lead from the IP66 socket outside, running down the garden and into the shed. I just replaced it with some armoured cable, ran it into the consumer unti and ran all plugs/lights from that. Did the same for my step dad about 16 years ago, so the laws may have changed since!


In which case all you have is a very expensive & unnecessarily complex extension lead!
#27
It is indeed just an extension lead, but far from unnecessary. You'd have to see the kit I'm running out there, more of an extension root system! I just make sure I protect each branch seperately, so there is a trip switch each for the 2 small sheds, 4 for the main shed and another for the pond setup. Its all too far from the house to run seperately, so a consumer unit made more sense to me.
#28
tek-monkey;7985643
It is indeed just an extension lead, but far from unnecessary. You'd have to see the kit I'm running out there, more of an extension root system! I just make sure I protect each branch seperately, so there is a trip switch each for the 2 small sheds, 4 for the main shed and another for the pond setup. Its all too far from the house to run seperately, so a consumer unit made more sense to me.


Using mcb's and other protection devices in series is not a good idea, for one, and you are limited to a total of 13A load regardless via the one plug and socket it is connected to. (not all plug and socket combinations are correctly UP rated for use with a plug in place either, they are only ingress protected with the flap closed!)

What you are doing is effectively running extension leads off extension leads. Whether providing mcb's with each branch being separately fused too offers any additional protection is something I would wonder about. The RCD would usually be best placed back at the original distribution board, and using a second one in series (on the remote plugged in "consumer unit") sounds a very odd way of doing things to me.
Armoured cable is just mechanical protection, so any means of providing that would be as good as any other, but overall, the whole thing just seems to be a lot of faff, more expensive and with the drawback of having many more connections that there need be!

Perhaps someone who is more 17th Edition competent would comment, but if I was seeing that it would be ringing alarm bells!
#29
I know I'm limited to 13a over the whole lot, but very few items will ever be used together. I've run an angle grinder happily off it, but generally only the lights and pond will be used. The socket it runs from is protected with the socket closed, wouldn't use the open ones as they seem rather pointless. Just mean you can use them in the dry!

If I could afford a proper sparky to do the job, I'd extend the ring down the garden. To replace the extension lead I had before though, this is running fine.
#30
I have a wylex 5amp rewireable fuse but screwfix only supply the trip switch for 6 amp will this be ok or does it need to still be 5 amp I dont want to get 6 and it keeps tripping

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