I am converting up to the large capacity BlueSolar 85 or 100TR connected to a standard 12V system.
The maximum gauge PV wire is 35mm2. Do the connectors provide sufficient grip for the relatively standard 6mm2 PV wire?
You can get MC4 models that are current limited to 35amp MC4 connections. If you want the most reliable connection. I am pretty sure they clamp down well the smaller models do.