First, my friend and I are in the USA so, that may be part of our problem. What I have gathered navigating this website/forum is that the VE-Direct doesn't like steady loads and voltage sags at 25ma of current draw.
Does Victron make a turn-key cable and SSR that will support a 10A 24VDC load? Or, do we need to put a buffer/amp in line to drive an SSR and isolate our 150/35 charge controller from the SSR?
The problem we have is that connecting our SSR to the VE-Direct line causes a voltage sag to ~2V which won't trigger the SSR. My thought is that the SSR is drawing enough current to cause voltage sag when connected to VE-Direct.
The other solution would be to buy an SSR that doesn't require much current and would latch the logic state and release the VE-Direct line.