How Do You Wire A 100 Amp Circuit Breaker Box?
100-amp circuit breaker boxes are the minimum size allowed by code. They are generally used as sub-panels instead of main service panels, because 100-amp service really only provides enough electricity for a refrigerator, washing machine and lights–with just enough left over to run a microwave or hair dryer. Adding an electric dryer, oven or water heater will require more electricity, which is why the minimum recommended residential service is 200 amps. If you are using your breaker box as a sub-panel, follow the steps below to wire it properly. Run the cable from the sub-panel to the service panel. The location of your sub-panel and your local building code will determine the specific type of cable to use and whether you will need to run it through a conduit. 100-amps of current requires #4 copper cable. Remove the knockout on top of the sub-panel and insert an NM connector. Pull enough cable through to reach the main breaker and side buses, and screw the connector securely to the ca
