How are individual circuits for household appliances typically protected?

Individual circuits for household appliances are typically protected with specific circuit breakers that match the power requirements of the appliance. A 20 amp breaker is commonly used for circuits that supply power to major household appliances, such as microwaves, refrigerators, and other kitchen equipment that may require higher electrical current for their operation.

This protection ensures that if the appliance experiences an overload or a short circuit, the breaker will trip, preventing potential damage to the appliance and reducing the risk of electrical fires. In contrast, a 15 amp breaker may be used for less power-intensive appliances or lighting circuits, and fuses serve a similar purpose as breakers but are less common in modern installations. Not using any protective devices would expose the circuit and connected appliances to potential hazards and damage. Therefore, the selection of a 20 amp breaker aligns well with standard electrical practices for managing household circuits efficiently and safely.