Miniature Circuit Breakers , commonly referred to as MCBs, are electromechanical devices whose primary function is to shield an electrical circuit from the undesired situation of an overcurrent. In optimal working conditions of a low voltage electrical circuit, a consistent level of current passes through the network. When a fault of any type occurs in this electrical network, it is common for a situation to arise where the current exceeds the rated limit. This unprecedented flow of current can result in lasting damage to the electrical instruments. To safeguard these appliances and the individuals operating them from any injury or damage, this high-rated current needs to be disrupted as fast as possible. This is precisely where the functioning of an MCB comes into play. This MCB identifies the irregular current flow and instantly breaks the circuit. This can also be referred to as the tripping action of the MCB knob. In earlier times, this job was carried out by a fuse – however, M...
