Outdoor switch with alternate outputs.

[alig301]

HI,

I want to fit an outdoor switch which will be fed with one supply, but I would like to be able to route the supply to 2 outputs, but only one output will ever be fed ant any one time. So basically I want to be able to connect the supply to either output but never both at the same time. So for clarity it will be fed with T&E and both outputs will be T&E too.

Can anyone help me out with what I would need and the wiring please.

Kind Regards
Al

 

[JohnW2]

I want to fit an outdoor switch which will be fed with one supply, but I would like to be able to route the supply to 2 outputs, but only one output will ever be fed ant any one time. So basically I want to be able to connect the supply to either output but never both at the same time. So for clarity it will be fed with T&E and both outputs will be T&E too.

What sort of loads will be fed from these two outputs - in particular, how much current/power do they use/need?

Kind Regards, John

 

[alig301]

The supply is 6mm twin and earth. One is to connect up an EV charging point (7KV) and the other output is the garage supply. As I said, only one will be supplied at any one time

 

[Taylortwocities]

Looks like a 32amp changeover switch.
There are a lot available. This one, maybe?

CLICK

 

[alig301]

Would that one work as it is either on or off. I need it connected to one output or the other, no 'off' position

 

[Adam_151]

Would that one work as it is either on or off. I need it connected to one output or the other, no 'off' position

Yeah, its a chnagerover switch, thats what it does. The image does appear to a standard on representative of the range rather than the specific varient though, if thats what prompted the question.

I'm far from convinced that what you are planning is a sensible way to go about the job, however, but I don't know the ins and out of it

 

[flameport]

EV charger with load management built in would be a far better choice, both EV and garage permanently connected but the charge rate is varied depending on the total load in use in the garage.

 

[alig301]

Such as this one
https://www.savemoneycutcarbon.com/...RmeDaH5eqv1_2UuKQShRYrRY_vj4EtQBoCUbcQAvD_BwE
which offers 'Offline proof load balancing'

Could I have the 2 output connected together in a junction box then with the supply feeding the other side and the EV charger would 'Balance' the circuit?

 

[flameport]

Those Easee devices can only share current between themselves, which is useful if there are multiples of them installed at a single location. but of no use if only one is installed.

A more realistic device is this: https://myenergi.com/product/zappi/ with a current clamp on the supply.

Could I have the 2 output connected together in a junction box then with the supply feeding the other side and the EV charger would 'Balance' the circuit?

Not sure what you mean by any of that.

The garage and EV charger are permanently connected to the supply.
EV charger monitors the current via the current clamp.
Output of the charger is automatically adjusted as required so the total current doesn't exceed a preset value.

 

[alig301]

A picture paints a thousand words…. Is this what to mean???

 

[alig301]

View attachment 272496

 

[flameport]

Current clamp and cable shown in purple, so the charger can monitor the total current. Clamp goes around the L conductor before it's split into the garage and EV.

Isolator not necessary or desirable either, it should be powered on permanently.