L = live

L vs L1 is just to differentiate input/ouput (usually)

e.g the incoming live is into the L and the outgoing live to the load into the L1
but its kinda weird for not having N1 as well.

check some quick guide/manual that supposed to be attached with that switch.
should have some info on wiring diagram

after my post above i go google for a quick check. yes its correct.
the N is just one. u have to loop it

but you trouble would be that:
1. common wiring practice don't have N into the switch box
2. have to source for N which will be impossible if there's no conduit in the wall (mostlikely contractor just plaster the wire in)


looking at your switch i guess how it work is:
the switch needs power to operate thus it requires N

basically the N and L together is to power up your switch
then the L1 is to forward the Live for a complete circuit

actually not that hard. but i doubt it'll be doable.

workaround is possible but might be ugly or tedious.
if want simple it'll be ugly
if want nice proper its really tedious.

to me it's like need partial rewiring

i'm not sure which device u're referring to.
really need to check the spec/wiring diagram of the exact device.

however in general (what i've encounter so far)

the numbered terminal usually be in/out:

like 2 pole switch for example should have 2 N and 2 L.
meaning incoming N and L and outgoing N and L.
thus simple way to mark it would be N,N1 or N1/N2 etc.

slight difference:
for 2-way / 3-way switch you will find common L1/L2 and so on

This post has been edited by ungka: Jul 6 2023, 04:08 PM