Type ? cable consists of one or more insulated circuit conductors, possibly with optical fiber, enclosed in a protective armor?

Type MC cable, which stands for Metal Clad cable, is specifically designed to house one or more insulated circuit conductors, and it can also include optical fiber within its construction. The protective armor that surrounds the conductors is typically made of metal, which provides enhanced durability and protection against physical damage and environmental factors.

The construction of Type MC cable makes it suitable for various applications, where both electrical conductors and the potential need for fiber optics may be required, such as in commercial and industrial settings. Its armored design allows it to be used in locations where flexibility and movement are necessary while still offering robust mechanical protection.

The other cable types listed are distinctive from MC cable; they either do not incorporate the same kind of protective armor or serve different functions. For example, Type AC cable has an armored design too but is limited to certain applications and lacks the robustness associated with MC cable. NM cable is typically used in residential wiring and does not have armor, while UF cable is designed for underground use and, like NM, does not feature the same level of protection as MC cable.