What is the function of a circuit interrupter?

The function of a circuit interrupter, such as a circuit breaker or a fuse, is primarily to protect electrical circuits from damage caused by overloads or short circuits. When the current exceeds a certain threshold due to these conditions, the circuit interrupter automatically disconnects the power supply, thus stopping the flow of electricity. This mechanism is critical in preventing overheating and potential fires, ensuring both safety and equipment protection within the electrical system.

This capability is essential in maintaining the integrity of an electrical installation, as it helps safeguard against catastrophic failures that can occur when circuits are subjected to excessive currents. Understanding the role of a circuit interrupter emphasizes the importance of electrical safety and the effective design of electrical systems.