Why does the introductory machine knock out at startup?
It is necessary to inspect everything, turn off all devices, fixtures, open the distribution boxes and turn off the lines one by one in search of a faulty one (until it stops knocking out). By the way, the machine, as I understand it, is BEFORE the counter? The counter may also be faulty and may also contain a short circuit. In this case, you are very lucky and you just need to buy a counter for 700 and install it.
At the expense of the blackened wires at the input closer to the counter, there may be a bad contact and they are warming up, or really short circuit in the counter, then this justifies the blackened wires and knocking out. In what condition are the wires leaving the meter?
Have you noticed when the socket melted? - It apparently melted at the moment when it cut out the plugs, it was precisely because of it that there was a closure, The wires turned black only at the input, today it turned out that this is still the case in the counter. Alexander, one more question, now that I have dismantled almost the entire counter, and tore the seals out of ignorance that they should not be touched, what should I do now? What will be the fine and whether? And what action plan should I follow now?