Looks to me like a row of three pole switches or breakers.
Toward the center right there looks like a 3 pole module that is off, and it is cooler than the other.
The wires on the top of the picture go into one of those plastic finger wire ducts.
I am guessing that this is a row of DIN mounted breakers in some bit of equipment, rather than a panelboard.
And it looks like one of the terminals on one of the breakers/switches is in sorry shape.
-Jon
