Motor control center

It consists of multiple enclosed sections having a common power bus and with each section containing a combination starter, which in turn consists of motor starter, fuses or circuit breaker, and power disconnect.

[2] MCC's are typically found in large commercial or industrial buildings where there are many electric motors that need to be controlled from a central location,[1] such as a mechanical room or electrical room.

A motor control center consists of one or more vertical metal cabinet sections with power bus and provision for plug-in mounting of individual motor controllers.

Motor control centers usually sit on floors, which are often required to have a fire-resistance rating.

Firestops may be required for cables that penetrate fire-rated floors and walls.