Abstract: A modular electrical outlet assembly including an outlet box having sides, a bottom, and an open end thereof adapted for attachment into a wall of a building. An outlet receptacle and a cover plate are formed together as a unit, the cover plate extending beyond the receptacle which is positionable within the outlet box. The receptacle has internal electrical conductors in alignment with two spaced arrays of plug-in apertures formed through the cover plate which are adapted to receive and come in electrical contact with the male prongs of an electric power cord plug. An attaching bracket is positioned and secured within the outlet box and includes spaced threaded apertures positioned opposite the open end of the outlet box.