Installing and Maintaining Motor Control Centers | Standards Michigan

Installing and Maintaining Motor Control Centers

Motor control center maintenance present an elevated hazard to electricians.


Installing and Maintaining Motor Control Centers

February 4, 2020

A motor control center (MCC) is an assembly to control some or all electric motors in a central location. 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. A motor control center can also include push buttons, indicator lights, variable-frequency drives, programmable logic controllers, and metering equipment. It may be combined with the electrical service entrance for the building.

NECA 402 Standard for Installing and Maintaining Motor Control Centers describes the installation and maintenance for low-voltage motor control centers (MMC) rated 600 VAC or less with horizontal bus rating of 2,500 amperes or less.

Comments are due February 10th

NEIS Review

Order from: Aga Golriz, (301) 215-4549,

We usually refer this commenting opportunity to the IEEE Education & Healthcare Facilities Committee with whom we collaborate closely 4 times per month.  See our CALENDAR for the next online meeting.




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