Circuit breaker is an electrical switch that is designed to protect an electrical circuit from damage cause by several factors such as
Overload is an excess amperage flowing over a circuit.
an unexpected electrical flow,that travels from sources that are electrically conductive.
Reason for electricity overload-
Loose or corroded wires and connections
electricity coming from a lighting bolt
Reason for short circuit-
Wire being stripped and touch by a tree limb
Two wires with different voltage touching together
Circuit breaker components