MCB - Miniature Circuit Breakers

Introduction of MCB

MCBs, or “Miniature Circuit Breakers,” should be installed in place of fuses for improved safety and control. Instead of a fuse, an MCB acts as an automated switch that opens if an excessive amount of current enters a circuit. As a result, a manual replacement is not required once the circuit returns to normal.

Most circuits use MCBs instead of fuse switches. MCBs are used in all types of home, commercial, and industrial applications today. Their breaking capacities range from 10 KA to 16 KA. Protection from these MCBs is dependable.

What is Miniature Circuit Breaker (MCB)?

MCB (Miniature Circuit Board) is a safety device with significant applications in both commercial and residential areas. This device is an electro-mechanical circuit protection device. Through an automatic safety mechanism, it prevents electrical circuits from being damaged by excessive current flow.
The MCB operates automatically, which means that if a short circuit or overcurrent occurs, the MCB will trip, interrupting the power supply and preventing any damages from occurring. Despite this, these devices are sensitive to even the smallest variations in current and can detect minute levels above the safety limit. An MCB interrupts a circuit when it is overloaded or shorted.

An MCB can be used as a substitute for a fuse in household applications. Over-fuses for MCBs have the advantage of being reusable even after an overload, or short circuit interrupts the circuit. Read more