What is a typical use for a 15 amp breaker or fuse?

A 15 amp breaker or fuse is typically used for lighting circuits and general-use receptacles. This is because 15 amp circuits are designed to handle the electrical load of standard residential and commercial lighting and small appliances efficiently. These types of circuits can support multiple lights and receptacles without exceeding the safe operational limits of the breaker or fuse.

Lighting circuits typically draw relatively low current, and standard outlets support devices such as lamps, televisions, and other general household items, which are usually rated to operate on the 15 amp capacity. Utilizing a 15 amp breaker in these scenarios is both efficient and safe, as it helps prevent overloading and reduces the risk of electrical failures.

In contrast, dedicated circuits for large appliances and heavy machinery require higher amperage to accommodate their greater electrical demands; hence they are typically served by breakers rated for 20 amps or higher. Additionally, receptacle circuits in garages and workshops might also need higher ratings due to the potential for connecting larger power tools or machinery.