Patent ID: 7602083

Claim:
A power supply assembly that coordinates the supply of power in an electrical system that includes a load center that is normally powered by a primary power source and a subpanel interconnected with the primary power source and an auxiliary power supply, wherein a first set of one or more electrical circuits are interconnected with the load center and a second set of one or more electrical circuits are interconnected with the subpanel, the power supply assembly comprising: a transfer switch that automatically connects the auxiliary power source to the subpanel so as to provide power from the auxiliary power source to the second set of electrical circuits when the primary power source fails to provide power to the subpanel; and an interlinked switch arrangement interconnected between the subpanel, the load center and the primary power source, wherein the interlinked switch arrangement is configured to isolate the load center from the primary power source, and is further configured to provide selective connection of one or more circuits of the first set of circuits to the auxiliary power source while auxiliary power is being supplied to the second set of circuits through the subpanel, when an operator desires that the selected circuits of the first set of circuits be powered by the auxiliary power source when the primary power source fails to provide power to the load center.