MCCB and MCB are both circuit breakers that protect electrical circuits from overload and short circuit. Learn the key differences, functions and applications of MCCB and MCB in this blog post. Learn about MCCB (Molded Case Circuit Breaker), an automatic electrical device that protects low voltage circuits from overloading and short circuits. Find out the parts, functions, working principle, types, testing and maintenance of MCCBs. Main Difference Between MCB, MCCB, ELCB , RCCB (RCD or RCB) and RCBO Circuit Breakers Different types of circuit breakers are installed and used for safety purposes in both residential as well as commercial and industrial areas. In power distribution, we need circuit breakers at different levels. Depending on the current carrying capacity, breaking capacity and other functions, we select a suitable circuit breaker according to our needs i.e. VCB, SF6, ACB (Air Circuit Breaker), MCCB and then ... This article covers molded case circuit breaker (MCCB) working /operating principle, its different parts and their functions, and labeled circuit diagram.
