Existing Wylex 8 way consumer unit installed around 1980 tested safe.
Thinking of replacing wired fuses with Wylex plug in MCB's
I know they will stick out further but that’s sorted with an extra deep cover.
Is there any ‘for and against ‘ using this type of MCB?
Our suppliers sub-contractor offered free visual inspection and made a Bee line for the C.U and condemned it as dangerous because it’s a wire fuse type unit. It is not its just a pain in the butt to re-wire when they blow. Yes I know the difference it trips in milliseconds with MCB, longer with wire fuse but operationally fine as long as correct fuse wire used.
nothing wrong with BS3036 rewireable fuses as long as correct fuse rated wire is replaced as mentioned and also the derating factors will increase your cables csa.
The draw back is having to rewire them rather than reset them as you would with an MCB.
[quote="kbrownie"]nothing wrong with BS3036 rewireable fuses as long as correct fuse rated wire is replaced as mentioned and also the derating factors will increase your cables csa.
The draw back is having to rewire them rather than reset them as you would with an MCB.
I'm sure BS3036 operate quicker?
KB[/quote]
From Greengrass
I don't think you got the message I want to replace the Wylex re-wireable ones with the Wylex MCB type with trip switch rather than having to pull a blown fuse out while unit still live as they seem to blow at night when lights needed.
I understood what your message said but the electrician who inspected your system is wrong. I agree that mcb replacement are less hasle to reset but rewireable fuses are not dangerous may be a little dated but no more dangerous than anything else as long fitted and fused correctly.
KB
Hi ,
plug in replacements are fine and most fuse covers have a 'breakout' section of the front, which with a little filing will still fit with just the front of mcb sticking out,
regards SPARX
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