MK Electric Junction Box, 30 amp

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hi im back again, ive traded in my awkward oven for a plug in oven now. so im happy about that.
now i have a silly question, of course. i have to extend my cooker switch so that 1. its easy to switch off and also so it is not situated behind my new oven.
when i buy a hob i will connect to my 30amp supply which will be situated
lower than my oven.
my question now is with the wiring of the junction box. it has 3 groups of 4 terminals, do i
1. put 2 red to one terminal 2 black etc.or
2. put each wire seperate, one to each terminal block
i will have new wire for hob supply and this has to go into junction box and then to the cooker switch.
the actual box i have is brown and is a mk junction box 30 amp
could you help me yet again please, chrissy :)
 
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Firstly where will the junction box be installed or left?
You can not leave junction boxes of this type in location where it is not easily accessible for maintenance, inspection and testing, so can not be hidden or buried.
You can however use MF (maintenance free boxes junction boxes) in areas that are not easily accessible.
Be aware also of the legal requirements in England and Wales, of alterations/additions to circuits within the kitchen. //www.diynot.com/wiki/electrics:part_p
Your core conductors should be matched up so live is with live, neutral is with neutral and earth (CPC) is with earth(CPC).
Also remember that cable routes within walls must follow safe permitted zones. and you may also need to addition of RCD protection if not already protecting this circuit.
 
hi the junction box will be aeasily accessible surface mounted.
i have enclosed the picture of junction box
what i am not sure of is...do i put the live wires together on one side of terminals, the earth in the middle section and the neutral on the other side. also do i put them side by side or twisted together into just one terminal. sorry not very good at explaining hope you can understand thanks chrissy
 
hi the junction box will be aeasily accessible surface mounted.
Where?
what i am not sure of is...do i put the live wires together on one side of terminals, the earth in the middle section and the neutral on the other side. also do i put them side by side or twisted together into just one terminal. sorry not very good at explaining hope you can understand thanks chrissy
I do understand, what worries me is that you have ignored the fact that you are altering a circuit within a kitchen and this is notifiable work.
The junction boxes are straight forward, three banks of terminals, each with three ports.
I would go down the middle with earth/CPC, either side live and neutral. No hard set rules regarding this. The CPCs should be sleeved yellow/green and no conductors should be twisted together.
This must then be tested for continuity, r1+r2, insulation resistance, dead polarity, live polarity, Ze, Zs, PFC and RCD tripping times.
 
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hi yes i am taking on all you say. i have taken junction box back to shop
why did you say that Click WA220 60 Amp 3 Terminal Junction Box was ok to use as the wiring is for 30amp does it offer more protection.
seems a lot of bother just to move cooker switch down 6-8 inches.
the one you have mentioned seems to be suitable as its only one wire in and one wire out. dread to think what i would have to do if i accidently cut the wire how would i join it i suppose the 60amp juction box would be used thanks chrissy
 
hi the new cable is 6mm as that is what has been in place these last few years, also the new hob will be connected to the 30 amp cooker unit as oven has a 13 amp plug thanks chrissy
 
i have enclosed the picture of junction box
No you haven't.


hi yes i am taking on all you say. i have taken junction box back to shop
why did you say that Click WA220 60 Amp 3 Terminal Junction Box was ok to use as the wiring is for 30amp does it offer more protection.
No, it offers terminals which are large enough.

If you hadn't taken the old one back to the shop you would have found out that when riveralt said "You wont fit 6mm cables in that jb" he meant that you wouldn't be able to fit 6mm² cables into it.


seems a lot of bother just to move cooker switch down 6-8 inches.
Less bother than a JB which is too small.


dread to think what i would have to do if i accidently cut the wire how would i join it i suppose the 60amp juction box would be used thanks chrissy
What does that mean?
 
hi yes did realize that the original junction box cable entries were not big enough for 6mm.
the click boxes seem simpler, although i do not need the one with 2 entry to one entry, that would be ideal for oven and hob, great idea!
thanks chrissy

ps did put pic on but for some reason it didnt show up, at a loss with that, never mind. sorry my mistake.
 

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