At this time we do not show any information on our power blocks on the prints. If this information is not asked for the customer will not know the maximum size available until they get the unit on site.

That is fine most of the time, but on other occasions the customer runs their power wiring before the equipment gets on site. If they have a run that exceeds the size of our power block it turns into who blames who and why wasn't that information conveyed to the proper people.

It also plays an important role in laying out the panels i.e. bend radius.

I am all for showing the maximums for the power block on the print, however I usually get a lot of flak whenever I suggest putting more information than standard on the prints.
My view is that if we specify the block information then the customer will not get a nasty surprise.