Hello Apollonius, thank you for your response, I tell you, the capacitor is the black rectangle of 2.5 Uf, isn't it? two other cables (red and black) are long and have two blades to connect to something that confuses me, because the capacitor has only two inputs and they are effectively used by the other pair of red and black wires, I don't know if I understand Thanks in advance.
It could be that of those fans that use a plate for mosquitoes, in case the doubts isolate both ends, check if you turn on the fan, the 2.5 mf rectangle is the capacitor.
Yes! Is that, looking at other comments of similar questions, someone said it was for "repellent" I did not understand, now I realize, as you said I will isolate them and thank you very much Apollonius!