UK MCB Size for radial socket circuit.

[Toonjabba]

My shed is only 5 Meters from my house, i will run a SWA cable from existing consumer unit to a shed consumer unit which will have 3 circuits for Sockets,Light and a 7.5Kw shower unit all i need to know is will a 16 Amp MCB be sufficient for the socket Radial circuit for 4 Double sockets

 

[Toonjabba]

So I wouldn’t need a shower just the heater

It would just go into a mixer shower

 

[Toonjabba]

It would just go into a mixer shower

Sorry. Just to add could I connect to a fused spur off the socket in the shed

 

[DPG]

For the 4 double sockets you can use a 16a breaker and 1.5mm T+E.

But would surely be better on some 2.5 and a bigger MCB.

 

[Electrics]

But would surely be better on some 2.5 and a bigger MCB.

Depends what it's for imo. In Europe it's quite common to see 16a and 5 sockets, and it will manage several tellies, chargers, a hoover, lamp, laptop etc.

In a shed maybe he wants to run power tools or maybe just plug in a radio?

Personally i would still do it in 2.5mm and 20a but 16a is doable.

 

[DPG]

Depends what it's for imo. In Europe it's quite common to see 16a and 5 sockets, and it will manage several tellies, chargers, a hoover, lamp, laptop etc.

In a shed maybe he wants to run power tools or maybe just plug in a radio?

Personally i would still do it in 2.5mm and 20a but 16a is doable.

Just wondered why you recommended 1.5mm and 16A. Seems a bit tight for 4 double sockets.

 

[nicebutdim]

Just wondered why you recommended 1.5mm and 16A. Seems a bit tight for 4 double sockets.

Especially when giving advice to someone who seems very unsure of what they're doing.

 

[Electrics]

Just wondered why you recommended 1.5mm and 16A. Seems a bit tight for 4 double sockets.

I'm not, i'm just saying it can be done. 1.5mm and 16a will handle 8 doubles. That's how the French do it and i'm presuming their normes are safe. Electricity is electricity after all.

If i were doing a radial i would use 2.5mm and 20a, but at the end of the day i just like to answer the question seeing as there could be variables at play we don't know about. I was just answering the question 'all i need to know is will a 16 Amp MCB be sufficient for the socket Radial circuit for 4 Double sockets'. Answer is yes.

 

[Electrics]

Especially when giving advice to someone who seems very unsure of what they're doing.

I hardly think that makes a difference. Safe is safe whether the person knows what they're doing or not and 1.5mm @ 16a will be fine for 4 sockets in a shed assuming he's not going to be running a load of bench tools off them all at the same time.

 

[nicebutdim]

I hardly think that makes a difference. Safe is safe whether the person knows what they're doing or not and 1.5mm @ 16a will be fine for 4 sockets in a shed assuming he's not going to be running a load of bench tools off them all at the same time.

I didn't raise any questions about safety.

 

[pc1966]

I hardly think that makes a difference. Safe is safe whether the person knows what they're doing or not and 1.5mm @ 16a will be fine for 4 sockets in a shed assuming he's not going to be running a load of bench tools off them all at the same time.

Its for dog grooming. I would not be too surprised if it has in winter a heater, kettle and hair-dryer all on at once so would go for at least 20A 2.5mm radial.

 

[Electrics]

I didn't raise any questions about safety.

So i'm not sure what you are actually saying at all then. He doesn't know what he's doing therefore i should not answer the question he asked? Confused sorry.

 

[Electrics]

Its for dog grooming. I would not be too surprised if it has in winter a heater, kettle and hair-dryer all on at once so would go for at least 20A 2.5mm radial.

Yeah me too.

 

[nicebutdim]

So i'm not sure what you are actually saying at all then. He doesn't know what he's doing therefore i should not answer the question he asked? Confused sorry.

Re-read the OP's comments prior to the point you suggested a 16A radial in 1.5T&E, then decide if sufficient information had been provided to determine whether or not such advice was appropriate.

 

[Electrics]

Re-read the OP's comments prior to the point you suggested a 16A radial in 1.5T&E, then decide if sufficient information had been provided to determine whether or not such advice was appropriate.

From the information provided by OP in this thread about what he wants to use the sockets for, 16a 1.5mm is fine. I wouldn't do it that way i would use 2.5mm and a 20a breaker but OP asked a question and i simply answered it. I also conceded already that it depends what it's going to be used for. 16a radial on 1.5mm can easily handle 'trimmers and a hair dryer'.

The answer to OP's question about 'can i use a 16a breaker to run 4 sockets' is 'yes'.

 

[Toonjabba]

From the information provided by OP in this thread about what he wants to use the sockets for, 16a 1.5mm is fine. I wouldn't do it that way i would use 2.5mm and a 20a breaker but OP asked a question and i simply answered it. I also conceded already that it depends what it's going to be used for. 16a radial on 1.5mm can easily handle 'trimmers and a hair dryer'.

The answer to OP's question about 'can i use a 16a breaker to run 4 sockets' is 'yes'.

Thanks everyone for your comments I will take on board everything that has been said. I do have 17th edition cert and part p but was done a while ago and not had much experience. I just wanted to make sure it’s safe. I will be using 6mm SWA from house to shed then 3 separate circuits for lights sockets and 3 kw water heater. What MCB would you suggest using in the house CU.