The invention describes apparatus for designing and installing power distribution systems for: residential, commercial and industrial applications, as well as for power distribution within electro-mechanical devices. The invention transforms existing labor-intense installations into practically plug-and-power type modular systems. For a specific project, pre-designed, fabricated and tested kit, including factory assembled and tested: power and control enclosures, power outlets and junction boxes, interface cables, as specified by the invention, will be delivered directly to the installation site. No labor intense operations: wire crimping, outlet/switch wiring, junction box wiring, load wiring. No exposed hot wires or leads at any point outside enclosure. The invention will: significantly lower labor costs, reduce installation time, improve safety, reliability and quality. Utilization of shielded cables and shielding of other components within a system, will significantly lower electrical power emissions, benefiting the environment for all—the end users and other technologies.