Iyi ngingo igereranya cyane tekinoroji yibanze hamwe nuburyo bukoreshwa muburyo bwo kumena imizunguruko yibirango bitatu byingenzi mpuzamahanga: Schneider, Siemens, na ABB. Iyo usesenguye ibyamamare nka Masterpact MTZ, Compact NSX (Schneider), 3WL, 3VA (Siemens), na Emax 2, Tmax XT DC (ABB), ibyiza bya buri kirango bigaragarira mubice bitatu: ibipimo bya tekiniki, guhanga udushya, hamwe nibikorwa bisanzwe: Schneider ni byiza muburyo bwo kwishyira hamwe no gukora ibisubizo bishingiye ku buryo bwa tekinike, ikoranabuhanga. Ubushakashatsi bwerekanye ko ibirango bitatu by'ingenzi biteza imbere ihindagurika ry’umuzunguruko ugana ku kwishyira hamwe kwinshi, guhuza ibidukikije, n’ubwenge binyuze mu guhuza interineti y’ibintu, guhanga udushya, no kuzamura imiyoborere y’ingufu, bitanga ibisubizo byihariye kugira ngo amashanyarazi mashya akenerwe kandi akeneye amashanyarazi akomeye.