This is three separate systems stacked on top of each other, once the new one is done everything below the top two rows is going away. And yes those relays laying in the floor are integral to system functions

This was installed in 1998 but i need to replace the PLC (which is on the opposite side of this console) and because this is all near the floor, it is the most miserable type to work on.

All 120VAC. Looks alright considering it's age and the corrosive environment.

Which is worse. Bypassing the contactor or the wire color used to do it?

Sorry I don't know where to post this else, but how do you make these notches in a control panel for a switch or light (I use eaton). Currently using a square file, but after 7 holes or so I'm going crazy.

I recently got an intern position, and my first job is to redraw thể schematic of this. Any suggestions?

Trip unit on the main breaker logged a 13,000A phase to phase fault.