O lenei tusiga o loʻo faʻatusatusaina loloto tekinolosi autu ma faʻataʻitaʻiga o faʻataʻitaʻiga o vaʻavaʻavaʻavaʻa o ituaiga faʻavaomalo tetele e tolu: Schneider, Siemens, ma le ABB. E ala i le suʻesuʻeina o faʻasologa faʻasologa e pei o le Masterpact MTZ, Compact NSX (Schneider), 3WL, 3VA (Siemens), ma le Emax 2, Tmax XT DC (ABB), o le lelei o ituaiga taʻitasi e faʻaalia mai i itu e tolu: faʻataʻitaʻiga faʻapitoa, faʻafouga galue, ma faʻaoga masani: Schneider e lelei ile faʻapipiʻiina numera, faʻavae faʻavae faʻataʻitaʻiga ma faʻaoga faʻavae faʻavae. ma le maualuga o le faatinoga, ma ua faia e le ABB ni suiga i algorithms atamai ma tekinolosi DC. O le suʻesuʻega na faʻaalia ai o faʻailoga tetele e tolu o loʻo faʻalauiloaina le faʻaleleia o vaʻavaʻavaʻavaʻa agai atu i le maualuga o le tuʻufaʻatasia, fetuunaiga o le siosiomaga, ma le atamai e ala i le tuʻufaʻatasia o le Initaneti o Mea, faʻafouina meafaitino, ma faʻaleleia le faʻaleleia o le malosi, tuʻuina atu fofo faʻapitoa mo avanoa fou malosi ma manaʻoga faʻalavelave mana.