Hi,
I would like to use Shelly i3 as a simple replicator of low and high price energy tariff signal.
There is a contactor in the home fuse box which is using the low/high tariff signals to enable or disable appliances that have high consumption, so when the distribution company will require the appliances to be disabled, they will send the command over the line and the contactor will basically block the appliances by switching the line wire off. (and vice versa depending on the command).
So the apparent solution would be to connect Shelly i3 L contact to line wire on the contactor input, N contact to the common neutral wire and I1 to the line wire on the contactor output.
However - I have apparently an issue here as Shelly will get warmer and warmer and will reach reported temperature of approx. 78 degrees celsius after two hours. I have experimented with leaving Shelly being just powered up without having I1 input connected to the circuit - the Shelly would reach 56 degrees after another two hours of operation.
From the wiring diagrams I can't seem to find an issue, since the contactor works as a simple switch and I'm using the same line wire to feed the Shelly L and L1 inputs.
Am I missing something here or do I have a faulty piece?
Reason to build this replicator is clear - I don't want to rewire my house just for the purpose of charging our EV on a low energy tariff...