What is the primary function of circuit breakers in an electrical system?

The primary function of circuit breakers in an electrical system is to protect electrical circuits from overloads and short circuits. When there is an excessive flow of current, such as in the case of an overload or a short circuit, the circuit breaker automatically interrupts the electrical flow. This action prevents potential damage to wiring and connected devices, as well as reduces the risk of fire hazards.

By automatically disconnecting the power when unsafe conditions are detected, circuit breakers ensure that the electrical system operates safely and efficiently. This protective feature is critical in maintaining the integrity of the electrical system and safeguarding equipment and occupants within a building. The ability to reset a circuit breaker after an issue is resolved also adds convenience in restoring power without the need for manual intervention or replacement of fuses.