MCC Panels

Overview

About MCC Panels

A Motor Control Centre groups the starters, protection and control for many motors in one assembly, fed from a common busbar. Each motor feeder has its own compartment with a starter, overload protection and the control devices it needs, so one motor can be isolated, serviced or changed without shutting down the rest of the board. For a plant with many motors this is far more organised and safer than separate starters scattered around the site.

Starters can be direct-on-line, star-delta or soft-start, and a feeder can also include a variable frequency drive where speed control is needed (see VFD panels). Prime Volt Systems builds MCC panels with copper or aluminium busbars, to IS / IEC 61439, with feeder arrangements that can be extended as the plant grows.

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• Motor list with rating (kW or HP), voltage and duty for each motor
• Starting method for each motor (DOL, star-delta, soft-start or VFD)
• Control scheme (local, remote, PLC interface) and the indications needed
• Incomer rating and the system fault level
• Busbar material preference (copper or aluminium)
• Spare feeders to leave for future motors
• Indoor or outdoor location and the IP rating needed