Basic Home Wiring From Breaker. These small switches are called breakers and their function is to ensure electrical safety. Loosen the screw over the breakers connection terminal insert the wires into the appropriate terminal locations then tighten the screw until snug.
Use an electrical tester by putting the tip of one probe against the ground bus bar and the other against one of the screws of a circuit breaker. 8-gauge wire goes with 40- or 60-amp two-pole breakers. After making sure the circuit breaker is still in the OFF position connect the white neutral wire and the black hot wire to the breaker.
After passing through the meter your electrical service feeds into your homes main service panel commonly known as the breaker box.
In the event of a ground fault the ground wire provides a path for the fault current to return to the panel opening the breaker or blowing the fuse and cutting off the flow of electricity. Once the power reaches the house via the service drop or service lateral cables it passes through the electric meter which may be mounted on an exterior wall or may be located inside the homes breaker box. The wiring into a breaker must correspond to its amperage. After passing through the meter your electrical service feeds into your homes main service panel commonly known as the breaker box.