Li-circuit breaker ke likarolo tsa bohlokoa tsa polokeho lits'ebetsong tsa motlakase, tse etselitsoeng ho khaola motlakase ka boits'oaro nakong ea li-circuit tse ngata kapa tse khutšoane. E fumaneha ka mefuta e fapaneng e kang MCB, MCCB, ACB, VCB, le RCCB, li fana ka tšireletso e tšepahalang, ho itšehla thajana ka motlakase, le ho lumellana le litlhophiso tsa taolo ea makoloi. Khetho e nepahetseng e netefatsa ts'ebetso e nepahetseng e ipapisitseng le litekanyetso tsa hajoale, matla a ho tlola, le litšobotsi tsa ho khoptjoa.