When installing MC feeders what fitting must I use and are “red heads” required?
The NEC® requires that these MC fittings must be “Listed and Identified” for use with MC Cables, (NEC Section 330.40). No red heads are required on any type of MC Cable. However, please contact you Local Inspector to verify. The NEC does require that “red heads” be used on AC Cables. Reference NEC 320.40.