Abstract: An electronics box for insertion into a wall box includes a housing having walls that define an inner volume. One wall includes an edge having part disposed along an outer surface of that wall, and a tab disposed within the inner volume at a distance from the outer surface of the wall and extending along a direction parallel to the outer surface of the wall. Another wall includes an edge having a part along an outer surface of that wall, and an opening completely surrounded by the wall at a distance from the edge of the wall. Upon the parts of the edges of the walls being brought in contact, the tab is inserted into the opening. The tab and the opening are dimensioned such that the tab securely fits into the opening and secures together the walls.

Abstract: An electronics box for insertion into a wall box includes a housing having walls that define an inner volume. One wall includes an edge having part disposed along an outer surface of that wall, and a tab disposed within the inner volume at a distance from the outer surface of the wall and extending along a direction parallel to the outer surface of the wall. Another wall includes an edge having a part along an outer surface of that wall, and an opening completely surrounded by the wall at a distance from the edge of the wall. Upon the parts of the edges of the walls being brought in contact, the tab is inserted into the opening. The tab and the opening are dimensioned such that the tab securely fits into the opening and secures together the walls.

Abstract: An electronics box for insertion into a wall box includes a housing having a top surface, a bottom surface, a rear surface, at least one side surface, and an intermediate surface disposed part way between the top surface and the bottom surface and extending inward from the at least one side surface. A chamfer surface is disposed between an edge of the bottom surface and an edge of the rear surface, and is disposed at a particular angle with the respect to the bottom surface and has a particular length. The particular angle and the particular length are selected such that the housing is able to be tilted and then inserted into the wall box with the chamfer surface clearing the wall box.