used for current rating above 100 amperes
its protected by thermal protection .
we can adjust the tripping
overload and short-circuit protection .
its normally used for current protection incoming side
Molded case circuit breaker(MCCB)IS used for overload thermal protection,it make the ckt at normal condition & and break at fault condition,it is also used as INCOMMER in control panel at high rating load,the rating of MCCB is to be above 63A.