Which term describes an accessory in a wiring system intended primarily for mechanical functions?

The term that describes an accessory in a wiring system intended primarily for mechanical functions is fitting. In the context of electrical systems, fittings are used to connect various elements or to change the direction of a wire or conduit run. They serve a structural and mechanical purpose, ensuring that wires, conduits, or other system components are securely attached and protected.

Fittings can include various types such as connectors, couplings, and elbows, which facilitate the integration of different parts of an electrical installation. Their primary role is to enable a reliable mechanical connection and ensure safety and stability within the system.

While connectors are also accessories used in electrical wiring, their main function is to establish electrical continuity between circuits rather than primarily serving mechanical functions. Adapters are used when different types of connections need to be joined, often involving electrical characteristics, and fasteners typically refer to hardware components used to hold parts together, but may not specifically indicate a role within the electrical system’s structure. Thus, the term fitting most accurately captures the essence of an accessory designed to fulfill mechanical functions within wiring systems.