Q. What are the NEC listing requirements for metal-clad (Type MC) cable and fittings?
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Underlined text indicates a 2017 Code change.
A. Type MC cable must be listed. The fittings must be listed and identified for the use. [330.6]
Type MC cable is made with several types of metal sheaths. Steel and aluminum are the most common. It can also have a PVC jacket for supplemental protection. Fittings must be listed and identified for the specific type of MC cable being installed.
Type AC cable connectors can also be used if the fitting or container indicates that they can also be used for the Type MC cable being installed.
The NEC doesn’t require anti‑short bushings (red heads) at the termination of Type MC cable, but if they’re supplied it’s considered by many to be a good practice to use them.
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