this post was submitted on 15 Nov 2023
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Home Automation

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Home automation is the residential extension of building automation.

It is automation of the home, housework or household activity.

Home automation may include centralized control of lighting, HVAC (heating, ventilation and air conditioning), appliances, security locks of gates and doors and other systems, to provide improved convenience, comfort, energy efficiency and security.

Warning: Working with electricity can result in injury, property damage, or even death if it is not done properly. Please keep this in mind while assisting others. If you are not sure about what you are doing, hire a licensed professional.

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Hi, so I bought this zigbee 2gang smart module with power monitoring, however, if I'm reading correctly the wiring diagram, it expects me to wire the switches to Neutral instead of Live, is that safe/correct?

https://preview.redd.it/nb9ylja5pg0c1.png?width=389&format=png&auto=webp&s=448c5ed26d433d748a5a52ffaf1aacc747a8feec

All of my other dumb switches are wired to live, and I've always wired my smart switches to Live, could this be different because of the power monitoring?

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[–] [email protected] 1 points 10 months ago (5 children)

The module needs neutral to power itself. A lot of the non-neutral units needs hubs or do nothing when the switch is turned off. This one will likely have some small power draw but stays connected at all times

Needing the neutral is normal, just be very careful of a short-circuit if you’re wiring it yourself.

Also to avoid confusion most folks refer to L as line for power and Load for application.

Hope this helps!

[–] [email protected] 1 points 10 months ago (4 children)

Thanks man,

I do understand that the module requires neutral, but what is weird for me is that according to their wiring diagram, the neutral also goes into the dumb wall light switch, instead of Live, is that also normal? I´ve always send Live to the wall switches.

[–] [email protected] 1 points 10 months ago (3 children)

The switches go to s1 and s2. Do not connect anything else to s1 and s2.

[–] [email protected] 1 points 10 months ago (2 children)

Right, but the wall switch (not the zigbee module) shouldn't also have Live besides the S1 and s@ connections? in the diagram it says to provide it with Neutral

[–] [email protected] 1 points 10 months ago

No. Line/Live does NOT go to the wall switch. The wall switch is wired as below.

S1 ===== Wall Switch ===== Neutral

[–] [email protected] 1 points 10 months ago

I erred. Connect one side of a switch to S1 and the other to to neutral. toggle that switch to connect L to L1. Repeat for S2 and L2.