QUOTE(hsunl @ Feb 19 2019, 09:29 AM)
Tq for ur help. Troublesome to make another hole for adding another switch. Too bad , I should tell the wire man earlier abt this smart switch. He is only prepare neutral wire for me and well distributed all my 3 phase wire usage and my mistake never thought of smart switch only having a single Live incoming per switch.... or is there any others brand selling with connect to 2 incoming Live smart switch??
My option now
1. Choose either one incoming Live for it
2. Make another hole for adding a switch
3. Reserve this 2 gang smart switch for my single gang normal switch. It is weird but easy for me.
4. Restudy my phase power n redistribute them. This is hard and not easy for me.
5. Get another smart switch which can connect to 2 different Live incoming
Tq to all of u again here
Getting blurred picture here
Your existing 2 gang switch has 2 L wires (different phases), one to light and 1 to fan.Now you bought a 2 gang smart switch that accept one L. You have N wire prepared for the smart switch. Correct?
In this case, I'll just use L wire from either phase to control both light and fan. Taped the other L wire and tuck it inside the whole for future use.
You don't need to worry if use only one of the phase. The power usage is not significant to upset load balance.