RCD wiring into fuse box

[jrli2008]

Just need some clarification...

installing a 8kw electric shower, none previously fitted.

only has a older style fuse/trip box (1989 build)


In taking power from this fusebox, where should it come from and I was just going to install a separate RCD, but would I need a MCb too?

ta guys

 

[jrli2008]

yes you can. fit a 40A MCB in the CU, then come off that ( L ) and the neutral bar ( N ) to your RCD.

brill....now to find a 40a MCB to fit....dont appear to be easy...20min internet searching so far, not getting one!

 

[monkeyelectric]

How about this MK SENTRY EARLY LN 5940 40A M6 TYPE 2 MCB CIRCUIT BREAKER. | eBay

 

[electric will]

This thread don't add up

 

[Elmer BeFuddled]

How about The Fuse Company?

Oops!! Looks like wrong fit!! :confused5:

 

[jrli2008]

How about this MK SENTRY EARLY LN 5940 40A M6 TYPE 2 MCB CIRCUIT BREAKER. | eBay

thought need type 1?

 

[jrli2008]

This thread don't add up

why not?!

 

[monkeyelectric]

Why type 1?

 

[electric will]

why not?!

Your asking pretty basic stuff, no ones said you shouldn't be doing the work, no mention of bonding, the enclosure in the picture is metal clad which isn't really the first choice by a DIYer, the enclosure looks second hand or been lying in the back of a van, also looks like it has a stuffing gland fitted in the top but no other knock outs knocked out?

 

[jrli2008]

Your asking pretty basic stuff, no ones said you shouldn't be doing the work, no mention of bonding, the enclosure in the picture is metal clad which isn't really the first choice by a DIYer, the enclosure looks second hand or been lying in the back of a van, also looks like it has a stuffing gland fitted in the top but no other knock outs knocked out?

Yeah, the RCD box has been used before for about 3month, still got 'garage' written on it....was from previous property...upgraded the whole CU to RCD so this was surplus...glad I had kept it, was guna chuck it.

Just assumed type 1...sorry!

 

[MDJ]

the enclosure looks second hand or been lying in the back of a van, also looks like it has a stuffing gland fitted in the top but no other knock outs knocked out?

yep very tatty and I wouldn't want it in my house LMAO, has he got a bush and locknut or a large grommet to protect any cables going in to that.

 

[SYKRAPS]

This thread don't add up

I'm with you will............I don't want to sound insulting but if these questions need to be asked by the OP should the OP really be carrying out the work?

 

[bigbaddave]

Im needing a boiler fitted, Think im going to join the plumbing forum and find out how its done. I mean it cant be that hard

 

[Geoffsd]

Plus - it's all illegal work.

 

[Hawk81]

Just need some clarification...

installing a 8kw electric shower, none previously fitted.

only has a older style fuse/trip box (1989 build)


In taking power from this fusebox, where should it come from and I was just going to install a separate RCD, but would I need a MCb too?

ta guys

Are you for real??? My advice is simple. If you can't answer these most basic of questions yourself then don't do any wiring yourself until you are ready to.

 

[rattlehead85]

Oh for god sake. I thought this forum was to clarify doubts people have. Ya give the advice and either ya get shot down or the op gets told he don't know what he is doing. Surely this is why a forum exists and not for just showing you know more than someone else.
To clarify... Put the 40a type 1 mcb in the board only and run to the RCD. DO NOT put a 40a in the board and then another one in with the rcd unit. This will cause a discrimination issue.