Vero G. Martinez (asker) May 3, 2021:

Thank you very much for your help; it is definitely a drawing...

Althea Draper May 2, 2021:

Vero 'Plano' can refer to a technical drawing, so is there an electrical drawing, circuit diagram or exploded view diagram that shows the part this relates to? Also, the 2.N50-K1 term, is this exactly how it is written or is it split up a bit? I ask, because you get N50 contactors and sometimes K1, K2 etc are used to denote a contactor in a circuit diagram.
As for 'forzado', I have heard of force guided relays and contactors, and these links show examples of 'contactos forzados' in contactors (on pages 7 and 8 in the first link), but I am not knowledgeable enough in this area to say that this is what you have in your text.
https://static.weg.net/medias/downloadcenter/h19/hb2/WEG-con...
https://es.rs-online.com/web/p/contactores/1469029/

Liliana Garfunkel May 1, 2021:

Podría ser un error de tipografía? Porque encuentro "Colector solar plano forzado" pero no: "contactor".