Overload Protection

With the overload function, if we slowly add more load to the circuit, we will eventually exceed the rating of the breaker and it will flip to cut the power and protect the circuit.

This is known as overload protection. Another feature of most modern circuit breakers is short circuit protection. In this case, if for some reason the positive and the negative wires come to direct contact, then we see a very large and instant surge in current because there is no resistance. The circuit breaker will detect this instant surge in current and will cut the power to cut the circuit.