... this is from the same place as the compressor motor. ('Bad Motor Wiring') This was in their electronic engineering department. It seems they like to do their own work.
The three stack box is truly special... Looks like a 'temporary' setup that grew out of control. Is this thing growing receptacles along the left hand side? It appears to be a 110/220v outlet strip along with a convienent place to double lug an extra cord when the cover is removed.
Actually, this began life as a pretty good installation. There are 3 30A 3Poles feeding 3 30A receptacles there on the side. A 100A Main C/B is in a separate enclosure (unseen) above...but... ...S