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Hello, I just installed a 9 panel 400v ground mounted solar panel string to my solar setup. When the sun is shining brightly, I notice a high pitched squealing noise coming from the solar panels. It seems to be coming from multiple places....not just one panel. I cannot tell for sure exactly...

Hello, I am using the Tigo CCA unit and trigger the rapid shutdown feature by disconnecting the power to the CCA. I want to setup an automated way of engaging the rapid shutdown feature when a ground fault happens. I am planning to use a normally open switch that senses for current on the...