What do stadiums and steel mills have in common, other than Pittsburgh pride?
Both traditionally use Motor Control Centers (MCC), an automation technology that has deep roots in many manufacturing industries.
MCCs are an assembly of one or more enclosed sections having a common horizontal main power bus and factory assembled motor control units or buckets which are connected to a vertical bus. Historically motor control centers were an assembly of numerous motor starters or feeder breakers used to control individual motors. Today they can incorporate variable frequency drives, soft starters, solid state/digital control devices, PLCs, HMIs and contain network communication protocols such as profibus, profinet or ethernet.