MC4 Connector Question

[HOU_Castle]

I was just thinking about this Will Prowse video "Victron Made Easy! Design and Communication, Step-by-Step"
where it seems that he had to remove the cover of the devices @1:42 to wire the cables to it.
But I don't know if the cover of your device had to be removed during the instalation.

How many Amp do you have on each MPPT input and how far are your PVs from your MPPT?

Victron 250/60 can have 30A max per pair connector. Mine is 2s2p, which is about 20A to mppt. Distance from Pv to mppt is about 70ft.