installing 110v and 240v socket in the same circuit

[Luka]

Hi All
Please advise in regards to wiring my shed/workshop. I need to install 110v plug. At the moment I have only 13A 240v standard sockets. Can I replace one of them with 16A 110v socket and have 240v and 110v sockets in the same radial circuit (please see picture attached)? Is it safe taking that I will not overload the circuit 0r I have to upgrade my consumer unit to have another MCB to run separate 16A circuit only for 110v socket? Also would 2.5mm2 cable will be sufficient or needs upgrade?

 

[Pete999]

Hi All
Please advise in regards to wiring my shed/workshop. I need to install 110v plug. At the moment I have only 13A 240v standard sockets. Can I replace one of them with 16A 110v socket and have 240v and 110v sockets in the same radial circuit (please see picture attached)? Is it safe taking that I will not overload the circuit 0r I have to upgrade my consumer unit to have another MCB to run separate 16A circuit only for 110v socket? Also would 2.5mm2 cable will be sufficient or needs upgrade?

View attachment 45881

In a word NO you can't

 

[chris gray]

Plug a 110v step down transformer into one of the sockets

 

[Luka]

thanks. Is option with adding MCB to feed only 110v socket ok then? this is my CU https://www.NoLinkingToThis/p/briti...FTY9rDQdlErPExO-5JBoC3_0QAvD_BwE&gclsrc=aw.ds

 

[Luka]

Plug a 110v step down transformer into one of the sockets

thanks, I guess it is also good for portability

 

[telectrix]

what load do you expect on the 110V?

 

[Luka]

what load do you expect on the 110V?

band saw ATB single phase 0.45kw motor

 

[Silly Sausage]

Hi All
Please advise in regards to wiring my shed/workshop. I need to install 110v plug. At the moment I have only 13A 240v standard sockets. Can I replace one of them with 16A 110v socket and have 240v and 110v sockets in the same radial circuit (please see picture attached)? Is it safe taking that I will not overload the circuit 0r I have to upgrade my consumer unit to have another MCB to run separate 16A circuit only for 110v socket? Also would 2.5mm2 cable will be sufficient or needs upgrade?

View attachment 45881

You can't have a 32A mcb on a 2.5mm radial, as in your drawing.
Needs to be a 20A.

 

[Luka]

You can't have a 32A mcb on a 2.5mm radial, as in your drawing.
Needs to be a 20A.

fair point, I need to change it at some point. I don't use more power than 3.5kW at once though

 

[telectrix]

what size cable feeds from the house, and what MCB rating?