t Shunt. My load is an 800W grid tie inverter. I tried a Victron 100/20 controller and it immediately fused the load terminals and is no longer switchable. It has an MPPT so ramps up output but fried the 100/20 so I assume the capacitors have high inrush. I have the 150/45 now but need a relay for the inverter load. I bought some 40a 48V electromechanical relays. The manual says I can control a relay via the VE Direct TX port but no information how to actually do that. I bought a smart battery protect but it’s ridiculous to have a $100 device to switch on yet another relay and needs protection against high voltages if using a non solid state relay. Is there an easier way to set this up? It’s cheaper to replace the 100/20 charge controller and use its load output for the relay but again this is overly complicated.

submitted by /u/cduemig2
[link] [comments]13:T428,I don’t understand why this seems so complicated. I have a plug in solar setup. I have a little over 2kw of panels and 48v 100ah battery connected through a Victron 150/45 controller and Smart Shunt. My load is an 800W grid tie inverter. I tried a Victron 100/20 controller and it immediately fused the load terminals and is no longer switchable. It has an MPPT so ramps up output but fried the 100/20 so I assume the capacitors have high inrush. I have the 150/45 now but need a relay for the inverter load. I bought some 40a 48V electromechanical relays. The manual says I can control a relay via the VE Direct TX port but no information how to actually do that. I bought a smart battery protect but it’s ridiculous to have a $100 device to switch on yet another relay and needs protection against high voltages if using a non solid state relay. Is there an easier way to set this up? It

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Victron inverter relay