A motor control center comprising: an enclosure for housing a plurality of electrical power component supports; conductors for control power; conductors for three phase power; the motor control center comprises conductors for a network link; the motor control center comprises a network and control power wireway within the enclosure and configured to house said conductors for the network link to the component supports and said conductors for control power from a power source, the conductors for the network link are configured to provide components within the component support with data signals in accordance with a standard network protocol and the conductors for control power provide the control power for energization of the components, wherein the conductors for control power are adapted for one of single phase power or direct current power; the motor control center comprises a power wireway within the enclosure for routing said conductors for three phase power to components that provide power to driven loads, wherein the power wireway for housing the conductors for three phase power is separated from the network and control power wireway; and characterized in that, the motor control center comprises one or more prewired connector assemblies, wherein the network and control power wireway is configured to receive said one or more prewired connector assemblies for plug-in engagement of component supports within the enclosure, wherein each of the one or more prewired connector assemblies comprises a plate on or through which a mating network connector and a control power connector are mounted, and wherein the plate supports one or more alignment devices for aiding the mating network connector and the control power connector to align with similar connectors of a component connector assembly of said component support. an enclosure for housing a plurality of electrical power component supports; conductors for control power; conductors for three phase power; the motor control center comprises conductors for a network link; the motor control center comprises a network and control power wireway within the enclosure and configured to house said conductors for the network link to the component supports and said conductors for control power from a power source, the conductors for the network link are configured to provide components within the component support with data signals in accordance with a standard network protocol and the conductors for control power provide the control power for energization of the components, wherein the conductors for control power are adapted for one of single phase power or direct current power; the motor control center comprises a power wireway within the enclosure for routing said conductors for three phase power to components that provide power to driven loads, wherein the power wireway for housing the conductors for three phase power is separated from the network and control power wireway; and characterized in that, the motor control center comprises one or more prewired connector assemblies, wherein the network and control power wireway is configured to receive said one or more prewired connector assemblies for plug-in engagement of component supports within the enclosure, wherein each of the one or more prewired connector assemblies comprises a plate on or through which a mating network connector and a control power connector are mounted, and wherein the plate supports one or more alignment devices for aiding the mating network connector and the control power connector to align with similar connectors of a component connector assembly of said component support.