Beiträge von Tristan Tucker

Thanks 66er, Appreciate the feedback. Do you think this could contribute to the issue I had? Either that or it was a faulty unit which would be very frustrating considering how much an electrician call out is.

Is there anyone else in the community who might have an idea on what happened? My understanding is no RC snubber would cause the Shelly to restart but not stop working completely.

I was also measuring across phases with two CT's. Is this an issue for device safety or is it just an issue as it has the potential to give incorrect values due to differences in voltage and power factor between phases?

Thank you!

Could this have contributed to the issue?

No the Shelly hasn't been proven to be faulty yet.

Is a snubber required for a hot water service? I thought this was only for inductive loads which a HWS is not.

Any thoughts on the live & neutral coming from a different phase to the controlled load being the issue?

My electrician installed my Shelly EM yesterday with two 50A clamps and the relay connected to a contractor for my hot water service. The Shelly EM was working great today, it measured power and even turned the contractor on and off when I wanted.

This afternoon I noticed it was no longer responding in the app. My electrician is coming tomorrow to remove the device.

Is this common for Shelly EM's to fail within 24 hours?

I am going to double check the live & neutral are powered on the same phase for the Shelly as for the contractor as I want to be sure the issue was Shelly and not the electrician. Is there anything else that can cause this that I can check?