KB-61 - Can I use a Z-Wave Relay or Smart Switch without Neutral?

Question

Can I use a Z-Wave Relay or Smart Switch without Neutral?

Answer

This is one of the most common questions we get and unfortunately the answer is No.

At the moment the only way to use a smart switch or relay in a lighting circuit is to ensure that it can be wired directly to Live and Neutral. A thorough explanation why Neutral is needed for a relay to work can be found on this Blog Post.

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