What is NOT a characteristic of circuit breakers?

Circuit breakers are devices used to protect electrical circuits from excessive current; therefore, they are designed with several key characteristics. Among them is overcurrent protection, which ensures that if a circuit experiences a current that exceeds its safe capacity, the breaker will trip to prevent potential damage. Additionally, circuit breakers often feature a reset capability, allowing them to be reused after they trip, unlike fuses that must be replaced.

Another essential function is interrupting current flow during overload conditions, which protects equipment and prevents fire hazards.

However, voltage regulation is not a characteristic associated with circuit breakers. Voltage regulation involves maintaining a constant voltage level in a power supply, which is typically managed by other equipment such as transformers or voltage regulators. Therefore, identifying voltage regulation as an incorrect characteristic of circuit breakers highlights the specific roles of these devices in electrical systems and clarifies their primary function in circuit protection.