What is the main characteristic of a switch intended for use in general distribution?

The main characteristic of a switch intended for use in general distribution is that it has an interrupting rating. The interrupting rating indicates the maximum fault current the switch can safely interrupt without causing damage to itself or creating a hazard. This characteristic is critical because it ensures the safe operation of the electrical system, preventing potentially dangerous conditions such as arcing or fire during fault conditions.

In general distribution systems, switches must be capable of handling the high levels of electrical potential that may occur during a fault, making the interrupting rating an essential design parameter. The NEC specifies these ratings to ensure that electrical equipment can tolerate the conditions it may encounter.

While a switch being manually operated, recognized by the Code, or having fixed wiring requirements are relevant attributes, they do not encompass the safety and operational specifications necessary for a switch in a general distribution system as effectively as the interrupting rating does. Therefore, the correct focus on the interrupting rating underscores the importance of safety and reliability in electrical installations.