March 14, 20233 yr I am designing my solar system and want to use the expected excess Solar production between 11 and 3pm to power 4 x 3kw geysers, for an hour each. I'll put these on the 'non-essential' circuit on the SunSync inverter. Having 4x switches runs the risk of 1 of the switches getting out of time, and 2 geysers drawing at the same time and tripping the system. Can someone recommend a single digital switch that can manage 4 x switches please?
March 14, 20233 yr 1 hour ago, miguelm said: Can someone recommend a single digital switch that can manage 4 x switches please? If you want a single device, then I would suggest the SONOFF Smart Stackable Power Meter Alternatives would be 4x Sonoff POW (either 16A or 20A). Using these, I do not see a real risk of their time settings getting out of synch as they all rely on the same server
March 14, 20233 yr 3 hours ago, miguelm said: I am designing my solar system and want to use the expected excess Solar production between 11 and 3pm to power 4 x 3kw geysers, for an hour each. I'll put these on the 'non-essential' circuit on the SunSync inverter. Having 4x switches runs the risk of 1 of the switches getting out of time, and 2 geysers drawing at the same time and tripping the system. Can someone recommend a single digital switch that can manage 4 x switches please? If I understand you correctly you are afraid you will send more than the inverter MCB to non essential. This will imply you have a very large PV system. This means more than 5kW of excess power to send to the non essential side? I would just go and use 4 Sonoff type smart switches as Wolfandy suggested. Leave 3 minutes of dead time between them and only 1 would get power at a time. Easy to disable on low sun periods like on whole day rain from your phone. Edited March 14, 20233 yr by Scorp007
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