I-YFB3 yochungechunge lwezintuli eziqhumayo-ubufakazi besigaba sesithathu se-asynchronous motor iyinjini ezivaleke ngokugcwele ene-self-fan-cooled squirrel-cage enezigaba ezintathu ezingavumelaniyo. Inezici zobukhulu obuncane, isisindo esincane, ukusebenza okuthembekile, ukubukeka okuhle, njll. Ibuye ibe nokusebenza kahle okuphezulu, umsindo ophansi, ukudlidliza okuncane nokukhuphuka okuphansi kwezinga lokushisa. Ukusebenza okukhulu, okuhle kakhulu, ukwakheka okuthuthukile futhi okunengqondo kokuvikela ukuqhuma, ukusetshenziswa okuphephile nokuthembekile, njll.