Understood, thanks.
If I get it to work, do you see any problem by using just one or two heating elements? I got thinking that, since I have solar power, I could control the power output by turning the 2kw heating elements independantely and therefore heat it as the PV supply increases or decreases. This would control my surplus solar production and keep costs down.
It worked correctly as instructed above, I have sucessfully verified by measuring current used by the heat elements.
I have since wired the 3 elements independantly and they are now controlled by an automation according to the solar energy production.
