What is the purpose of a circuit breaker?

The purpose of a circuit breaker is to protect electrical circuits from overcurrent. When an electrical circuit experiences a surge in current that exceeds its designed capacity, this can lead to overheating, damage to equipment, or even fire hazards. A circuit breaker automatically interrupts the electrical flow when it detects this overcurrent condition, thereby preventing potential damage and ensuring safety within the electrical system.

The function of a circuit breaker is crucial in maintaining the integrity of the electrical system by interrupting the flow of electricity before damage occurs, making it a vital component in electrical installations. While enhancing power supply and connecting multiple circuits are important aspects of electrical systems, they do not directly relate to the protective function that a circuit breaker serves. Similarly, stabilizing voltage levels is also not its primary purpose.