We are dealing safe and secure range of Schneider MCB which is a miniature circuit breaker designed for installation in electrical circuits. Its major function is to protect electrical circuits or wirings from faulty or overload currents. It is a three-phase circuit breaker with semi-automatic operations. It functions by cutting the supply of electricity in a circuit if there is any fault from the source of electricity supplies. Schneider MCB can be installed in different sectors of electrical circuits. Apart from providing safety from current leakage, the MCB is also used for cutting the supply of electricity in a particular area if any repair work is needed or installation of an electrical appliance or lighting system is underway.