What is essential for the function of circuit breakers in an electrical panel?

The essential function of circuit breakers in an electrical panel is to protect circuits from overload. When the current flowing through a circuit exceeds its rated limit, a circuit breaker automatically interrupts the flow of electricity to prevent potential damage to the wiring, appliances, and other components connected to that circuit. This overload protection helps reduce the risk of electrical fires, equipment failure, and other safety hazards.

By breaking the circuit in response to an overload, circuit breakers ensure that the electrical system operates safely and reliably, allowing only the appropriate amount of current to flow and providing an important safeguard for both the system and users. They are an essential component in maintaining electrical safety and compliance with electrical standards.