Re: Is the entrance cable undersized? (distribution panel)
Just a guess ....
It looks as though this condo has been renovated at some time with new wiring along with a replacement sub-panel installed.
If so there will be another panel somewhere in the building with the main breaker for that suite that will be labeled with the supply rating.
The capacity rating of the panel itself doesn't mean anything .... it may say 125 amps though it can be used for a lesser service like 60 amps.
It might be a good idea before closing to check with your local building department to see if any permits have been issued for this residence and if any inspections had been done.
Just a thought.
"" an ounce of perception -- a pound of obscure "