What are typical ratings for circuit breakers?

The correct choice reflects a common range for circuit breaker ratings, primarily used in residential and commercial electrical distribution systems. Circuit breakers are designed to protect electrical circuits by stopping the flow of electricity in the event of an overload or short circuit.

Ratings from 15A to 200A are standard in many installations, where 15A and 20A breakers are often utilized for general lighting and receptacle circuits in residential settings, while larger ratings such as 100A or 200A are typically found in main service panels or for larger appliances and machinery.

Understanding this range helps electricians choose appropriate circuit breakers based on the electrical load requirements and to ensure the safety and efficiency of the electrical system within a building. Ratings outside this range, such as those that are lower (like 1A to 10A or 10A to 50A) or higher (like 100A to 400A), may be suited for specific applications or equipment but do not represent the most common configurations for general usage in typical residential or commercial applications.