I'm having an off-grid solar system installed (16x415W + 2 x MPPT 250/100 + Multiplus II 48/5000 + 2 x 5 kWH LiFePo4). I'm worried about overload condition and would like to have an automatic system that drops the water heater (2kW) off line if the 5000 kW inverter output is about the be exceeded.
My question is if the Multiplus II has some features that can be used to implement this or do I have to have this implemented without help from the Multiplus? Can the relay be programmed for this application?