Sengoliloeng sena se bapisa ka botebo mahlale a mantlha le maemo a ts'ebeliso ea li-circuit tsa mefuta e meraro e meholo ea machaba: Schneider, Siemens, le ABB. Ka ho sekaseka letoto la lihlooho tse kang Masterpact MTZ, Compact NSX (Schneider), 3WL, 3VA (Siemens), le Emax 2, Tmax XT DC (ABB), melemo ea mofuta o mong le o mong e senoloa ho tloha likarolong tse tharo: litekanyetso tsa tekheniki, ts'ebetso ea ts'ebetso, le lits'ebetso tse tloaelehileng: Schneider e sebetsa hantle ho meralo ea dijithale le moralo o phahameng oa Nokia. tshebetso, 'me ABB e entse tsoelo-pele ho li-algorithms tse bohlale le theknoloji ea DC. Boithuto bona bo bontšitse hore lihlahisoa tse tharo tse kholo li khothaletsa phetoho ea li-circuit breakers mabapi le kopanyo e phahameng, ho ikamahanya le maemo tikolohong, le bohlale ka ho kopanya Marang-rang a Lintho, boqapi ba lintho tse bonahalang, le ntlafatso ea taolo ea matla, ho fana ka tharollo e ikhethileng bakeng sa phihlello e ncha ea matla le litlhoko tse rarahaneng tsa marang-rang a matla.