An MCB (Miniature Circuit Breaker) is an electrical safety device that is designed to protect an electrical circuit from overloads and short circuits. It is a type of circuit breaker that is commonly used in residential, commercial and industrial electrical installations.
The MCB works by detecting any excess current flowing through the circuit, caused by either an overload or a short circuit. When an overload or short circuit occurs, the MCB quickly interrupts the current flow and shuts off the circuit, preventing any damage or fire hazards.
MCBs are typically rated in terms of their current-carrying capacity, and they come in a range of sizes and configurations to suit different electrical installations. They are a critical component in modern electrical systems, helping to protect equipment and people from electrical hazards.