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Circuit breakers in the Seminole serve the crucial purpose of protecting electrical circuits from overload. When excessive current flows through a circuit, it can lead to overheating and potentially cause damage to the electrical components or even create a fire hazard. Circuit breakers are designed to interrupt the flow of electricity automatically when they detect an overload condition, thus preventing damage to the system.

This safety feature ensures that the electrical system remains intact, allowing for continued operation of essential equipment while safeguarding against faults. Other functions presented in the choices, such as maintaining constant battery output or adjusting engine throttle settings, do not relate to the protective role that circuit breakers provide. Similarly, while resetting electronic systems might be necessary in some situations, it is not a primary function of circuit breakers. Therefore, the ability of circuit breakers to safeguard the aircraft’s electrical systems from overload is a vital aspect of operational safety in the Seminole.