What is the required minimum rating for feeder disconnecting means in a one-family dwelling?

The required minimum rating for feeder disconnecting means in a one-family dwelling is established to ensure that the electrical system can safely handle the loads associated with typical residential usage. A rating of 100 amperes is recognized as the minimum standard for feeder disconnecting means to accommodate the vast majority of residential electrical applications.

This rating is crucial because it ensures that the electrical service can handle the power demands of typical household appliances, lighting, and other systems without risking system overload. The 100 amperes rating allows for sufficient capacity to support the residential electrical needs while maintaining safety and reliability in the system.

Options suggesting ratings below 100 amperes, like 30 or 60 amperes, would not be adequate for the majority of contemporary one-family dwellings, which often require more power for modern appliances and electronics. Similarly, while 200 amperes is commonly found in larger or more energy-demanding homes, it exceeds what's necessary for standard one-family dwellings, making it more than just the minimum requirement. Thus, 100 amperes stands as the correct minimum rating for feeder disconnecting means in this context.