Hi,

I planned to install smart switch in almost all rooms. May I know if neutral wire normally available in the switch box for condo/service apartment in Malaysia?

no.
usually only live wire.

you may borrow the nearest neutral
or place your smart switch inside the lamp

switch box mean the 13 A socket in the room or ?

what type of smart switch , for what purpose ?
where do you plan install the switch. . cos some location on the wiring system are OK some are not .

There are smart switch that does not need neutral

Ya. But if neutral available it will be easier to install.

In the socket. Target is to install in all bedroom and living room.

With smart switch, we can use alexa or google home to control the home appliances using voice or smartphone.

Yes. But it will be easier to install if neutral is readily available.

Thanks all.

I'm thinking to use other way to do it. There is xiaomi device that can control IR-controlled home appliances available in Malaysia.

Maybe after tat will try the smart switch without neutral.

13A socket have 3 wires, Live, Neutral & Earth.

in malaysia Neutral line, earth , Live is always available at the 13 amp 3 pins socket . that s the standard.

Not that hard to install without neutral. Just extra 1 step to install capacitor at 1 of the light. It might be even harder to install with neutral especially those 3 or 4 gangs because so many wires with so little space to cram all the wires in. Trust me, I had install more than 20 wall switches.

It is even harder to pull N wire since you need to hack the wall to conceal it. Otherwise will need to lay on wall

I'm using smart switches... All without neutral wire... need to install capacitor at L1... no fuss..

He is saying appliances not lightings, so not an issue. 13A plugpoints have neutral+live+earth.

13A socket got neutral line. All smart switch at my home using neutral type coz very easy to pull from 13A socket (At my home switch concealed box at top share line/piping with 13A socket at bottom so no need to spiderman at ceiling roof).

This post has been edited by excaliburcombo: Oct 5 2020, 11:11 PM

How come no neutral wire in light wall sockets?
All houses nowadays got mar....
Is it because 3-phase don't have?

Does the neutral wire need to be in the same phase or even circuit for it to work?

Eg. lights on R1 while the switch I'm taking from is on Y5 for example. or I need to grab from R1 lights from R1 13A switches?

Err boss..dont confuse LIGHT n 13A SSO socket please

13A SSO = need full LNE (3 cables) from DB to the 13A socket.

Light L = L (from DB)----LIGHT SWITCH only operate on L --- light bulb holder (load)
Light N = N from DB ----------------------------------------------- light bulb holder (load) as return path from load. N no need switching, unless its 2-pole (water heater switch to cut both L and N flow)
Light E = E from DB ----------------------------------------------- light bulb holder (load) as safety backup return path from load

This post has been edited by ceo684: Jan 19 2021, 01:47 PM

Neutral is common even if you have 3ph wiring.
Generally neutral is shared but you need to keep certain special purpose neutral as dedicated virgin, do not connect anything to them (special purpose = i.e. the Water Heater or wet floor SSO) which are connected to 10mA RCD.

10mA RCD is very sensitive and it will not be able to operate if there is imbalance caused by the injected return path (it is more sensitive than your finance department when you submit fake claims using next door workers' receipts - when you are only entitled for own-expenses claims)

This post has been edited by ceo684: Jan 19 2021, 01:53 PM

RCD is it the 25A 0.01A? As long I don't take from heater switch then right?


This post has been edited by celciuz: Jan 19 2021, 02:29 PM

ts, have u explored batteryless smart switch like the zigbee kinetik?
then basically just stick and run. no wiring needed

energy is generated from the motion of switch.

Yes and yes. Simple to say all the RCD in your pic are the 0.01, 0.03, n 0.1 blocks with test buttons.