3.4 Lesson 2-Circuit Breakers 3. What is the main purpose of a circuit breaker? /1 Text

A circuit breaker is an automatic electrical switch designed to interrupt a circuit in response to an abnormal condition, such as an overload of current or a short circuit. The main purpose of a circuit breaker is to protect an electrical circuit from damage caused by overcurrent or overload. It does this by detecting when the current exceeds a certain level and then breaking the circuit to stop the flow of electricity. This prevents overheating or potential fires that could be caused by the excess current. Circuit breakers are an essential component of electrical safety systems in buildings and industrial settings.