I do have MCB's between the panels and the inverter in the current set-up, so am able to turn them off when I want to. But my current inverter only have inputs for two MPPTs, so two strings are connected in parallel. The Deye inverter has three sets of inputs, so by running each of the three strings through one of those "combiner" boxes into a separate MPPT on the inverter I could optimize the production from each string. It would also free up space in my existing CU, as I would no longer need the MCBs to be in there.
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