A circuit breaker is an electrical device that automatically interrupts the flow of electrical current in a circuit when it exceeds a certain limit. It is a safety device that is used to protect electrical equipment and systems from damage due to overloads, short circuits, and other electrical faults.
Circuit breakers are typically installed in electrical distribution systems, such as in homes, buildings, and industrial facilities, to protect equipment and prevent electrical fires. They work by detecting abnormal increases in current flow and quickly shutting off the flow of electricity to the circuit.
When a circuit breaker trips, it interrupts the flow of current and prevents further damage to the circuit and the equipment it is connected to. Once the problem is resolved, the circuit breaker can be reset to restore power to the circuit.
Circuit breakers come in various sizes and types, depending on the voltage, current, and application of the electrical system. They can be designed for use in low voltage or high voltage systems, and they can be configured as single-pole, double-pole, or three-pole devices, depending on the number of conductors they control.
Overall, circuit breakers play an important role in electrical safety and protection, helping to prevent damage to equipment and electrical systems and minimizing the risk of electrical fires.