Thermal Magnetic Adjustable MCCB (Molded Case Circuit Breaker) ndi chida chofunikira chotetezera chomwe chimapangidwa kuti chiteteze makina amagetsi kuti asachuluke komanso mabwalo aafupi. Mwa kuphatikiza chitetezo chamafuta ndi chitetezo cha maginito ndi makonzedwe osinthika aulendo, kumapereka kusinthasintha kwakukulu, kulondola, ndi kudalirika kwa ntchito zamafakitale, zamalonda, ndi zomangamanga.