What is the function of the circuit breakers in the Pilatus PC-12 NG?

The circuit breakers in the Pilatus PC-12 NG serve a crucial role in protecting the aircraft's electrical systems. Specifically, their main function is to safeguard electrical circuits from overload conditions. When the current flowing through a circuit exceeds the safe limits—due to overloading or a fault—the circuit breaker will 'trip,' interrupting the flow of electricity. This automatic interruption prevents wiring damage and potential fire hazards, ensuring the safety and reliability of the aircraft's electrical system.

By maintaining this level of protection, circuit breakers also contribute to the overall operational integrity of the aircraft. Properly functioning circuit breakers help maintain the aircraft's performance and safety standards, which are essential for the reliability of various systems onboard. Protecting electrical circuits ensures that each system can operate within its designed parameters and helps avoid cascading failures that could lead to more significant issues during flight.