Circuit BreakersCircuit breakers are electromechanical devices that are used to protect electrical circuits from damage due to overloads or short circuits. A circuit breaker consists of a switch that is connected to the electrical circuit, and a mechanism that can open the switch in response to an overcurrent or short circuit condition. When an overcurrent or short circuit is detected, the mechanism opens the switch, interrupting the current flow and protecting the circuit from damage. Circuit breakers are commonly used in residential and commercial buildings, as well as in industrial and transportation applications. They are an important safety feature that helps to prevent electrical fires and other types of damage.