A circuit breaker is an electrical safety mechanism specifically engineered to safeguard an electrical circuit from harm caused by an excessive flow of current that surpasses the equipment’s safe capacity (known as overcurrent). The primary purpose of this device is to disrupt the passage of electric current in order to safeguard equipment and avoid the occurrence of fire. Unlike a fuse, which functions just once and requires replacement, a circuit breaker may be reset (either manually or automatically) to continue its usual functioning.<\/p>