Newly fitted light switches trip the breaker. (Ed.)

[Marky.M]

You will need an additional terminal at each light, I show as screw terminal, wago is fine but the left will be for 3 wires.
The blue wire at each switch (I show as darker) is not neutral, it is switched live and will require brown sleeve at each end.

View attachment 323211

Thanks this makes sense. Thank you.

 

[SUNRAY]

Thanks this makes sense. Thank you.

Feel free to ask more if you need it.

 

[Marky.M]

Feel free to ask more if you need it.

Thanks, In terms of how the wires are connected to the switch terminal. How should they be connected? I’m attaching a pic of the switch reverse.

 

[securespark]

Brown to 1.
Blue with brown marker to 2. If the switch works the wrong way round, then swap the blue with brown marker to 3.