What are locknuts, bushings, and connectors categorized as?

Locknuts, bushings, and connectors are categorized as fittings. Fittings play a crucial role in electrical installations by ensuring that various components, such as conduits, cables, and electrical boxes, are securely joined and properly aligned.

Locknuts are used to secure fittings to conduit or boxes, preventing them from loosening over time. Bushings protect wire or cable insulation as they pass through metal enclosures, ensuring that the integrity of the conductor is maintained while also providing strain relief. Connectors, on the other hand, facilitate the joining of different electrical components, ensuring both electrical continuity and mechanical stability.

The other options do not accurately describe these items. Conductors refer to materials that allow the flow of electricity, insulators are materials that resist electric flow and are used to protect against unintended electrical exposure, and breakers are protective devices that interrupt the circuit in overload or fault conditions. Therefore, fittings is the correct classification for locknuts, bushings, and connectors.