Motor Control Center Installation



Motor control centers are used to control some or all of your electric motors from a central location. It consists of multiple enclosed sections with 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.

Motor control centers are typically found in large commercial or industrial facilities and have been used since 1950 by the automobile manufacturing industry. Today they are used in many industrial and commercial applications. Where very dusty or corrosive processes are used, the motor control center may be installed in a separate air-conditioned room, but often they will be on the factory floor adjacent to the machinery they control.

Motor control centers are usually used for low voltage three-phase alternating current motors from 208 V to 600 V. Medium-voltage motor control centers are made for large motors running at 2300 V to around 15000 V.

They consist of one or more metal cabinet sections with power bus and provision for plug-in mounting of individual motor controllers. Very large controllers may be bolted in place but smaller controllers can be unplugged from the cabinet for testing or maintenance. Each motor controller contains a contactor or a solid-state motor controller; overload relays to protect the motor, fuses or a circuit breaker to provide short-circuit protection, and a disconnecting switch to isolate the motor circuit. Three-phase power enters each controller through separable connectors. The motor is wired to terminals in the controller. Motor control centers provide wire ways for field control and power cables.

If your business is looking to install, repair or maintain a motor control system, give the experts at American Electric of Jacksonville a call. Our licensed electricians will handle all the details of your project with a minimum of disruption to work-flow.

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Contact American Electric of Jacksonville for a Motor Control Consultation and Estimate. Call: 904.271.4044