Hello Manuel. Welcome. I have had Google translate some of your questions and comments....
However, we do have some Spanish speaking people here that can help if I did not understand completely.
"Composed of the following elements.
Two groups of 6 solar panels of 250 V each. Looking East and WEST respectively. "
I am not sure I understand. Are you saying that each string of 6 solar panels are 250 volts of open circuit ?
If so, that will barely work on one Classic 250 charge controller since it stops working at 251 volts open circuit.
"I recently purchased a 600W 48V Wind Turbine in China that came with a Load Control that is too basic, but I don't get it."
I do not understand what they may have for control either. Most likely it is a "dump" load controller which will not work.
"Can I connect the Wind Turbine directly to the Classic I currently have for one of the PV sets? (and that works as a Master). In the Aux sector, but so that it works at the same time as the PV.
A Clipper is justified only for Turbines of more than 1 KV or in this case it would be advisable?"
I think you may be asking if the Aux can control the dump circuit ?? But YES, the two Classics can work fine together when one Classic is connected to Solar and the other Classic is connected to your wind turbine.
If you connect the two charge controllers in "Follow Me" mode with cables going from one controller to the next and then the next controller running back to the first controller, in a loop, this will take care of the master-slave relationship without having to worry about a master or slave relationship.
As far as 1kV clipping, no, you need to have the clipper keep the input of the Classic from going above 250 volts maximum for the wind turbine so that the Classic does not turn off due to high voltage in higher winds or wind gusts. Even though you have fairly low wind speeds, the wind gusts of temporary high speed can hurt the Classic because the voltage will go too high momentarily.
The Aux output can keep the wind turbine loaded down to a maximum voltage by telling the Clipper to clip when the high speed or voltage is not needed. This clipping below 250 volts will also help keep the wind turbine bearings from wearing out as fast as they normally would without a clipper.
Then, if the connection to the Clipper from the Aux output fails or if the Classic should stop sending the clip signal, the fail-safe adjustment in the Clipper (if it is our clipper and adjusted properly) will keep the turbine from spinning too fast and having a voltage
"Clarification: Why did I add a Wind Turbine? Because on very cloudy days or several days of storm there is generally wind, as well as tmb at night, in such a way that it is totally COMPLEMENTARY and on the other hand according to my experience so far, with 15 or 20 km / h of wind q It is something usual in this area, there is very little energy that it generates."
This is a very good reason to have both Solar and Wind when possible. The wind speed may or may not be high enough to help except for certain times of the year. I have the same problem here in the western side of the state of Washington where the wind normally blows good in the month of October.
boB