A system for securing a cover on an electrical box is provided having an electrical box, an electrical box cover, the electrical box having at least two screw receptors, the electrical box cover having at least two screw pass-throughs, the at least two screw receptors corresponding to the at least two screw pass-throughs, such that a screw inserted in one of the screw pass-throughs may be secured in the screw receptor to hold the electrical box and electrical box cover together, the electrical box having a first temporary connector, the electrical box cover having a second temporary connector, and the first temporary connector and the second temporary connector corresponding to one another such that the electrical box and the electrical box cover are held together while screws are inserted into the at least one screw pass-throughs and screw receptors.

A gang box lid has an outer surface, an inner surface, an outer lip defining an interior lid space, and a retractable protrusion. The outer lip has an inner perimeter larger than the external perimeter of a gang box so that the interior lid space receives the gang box and any protrusions on an exterior edge of the gang box opening. In some examples, the retractable protrusion is slidable within an aperture. In some examples, the retractable protrusion is hinged to the outer surface.

A bracket mountable electrical box having a mounting assembly or device that can secure the electrical box to a mounting bracket. The mounting assembly or device can include one more arms that can define at least a portion of a channel that can receive the mounting bracket. The channel can be selectively closed, or at least partially deformable, in a manner that can assist in retaining the engagement between the mounting bracket and the mounting assembly or device, and thus the electrical box. Such configurations can accommodate securing the electrical box to the mounting bracket without at least the use of additional tools.

Cover plates are provided for electrical fixtures including a screwless cover plate and/or cover plate assembly for electrical devices that cover the outlets but provide holes for plugs, light switches, audio, data, or video connectors, and the like, and that do not show screw or attachment holes and where the cover plate is part of a cover plate assembly that have screwless attachment to a rectangular ring shaped mounting or strapping plate that attaches to the outlet, switch, wall, or housing or receptacle box without showing screw holes, e.g., via tabs or other attachment mechanism, with or without a backing plate.

A wall box may provide adjustable support for a control device, such as a keypad, to allow for level alignment of the control device when mounted to the wall box. The wall box may have an adjustable support frame to which the control device may be mounted. When the control device is mounted to the support frame of the wall box, the support frame may be rotated to adjust the alignment of the control device. In addition, the wall box may comprise one or more projections configured to be received in respective detents in notched surfaces of the control device to allow for adjustment of the alignment of the control device. Further, the wall box may have a modular assembly and may be constructed from a central portion and two side portions at the time of installation of the wall box.

In one example, a cover plate may include a face plate with at least one outlet aperture, a back plate abutting the back of the face plate, an electric load between the face plate and the back plate, and at least one prong that extends from the face plate to a free end. The prong may be configured to interface with a terminal on the side of an outlet receptacle body and may include any or all of the following: an insulated portion and/or an electrical contact. The prong may resiliently deflects outward when interfacing with the terminal and may deflect with a first resistance prior to contacting a wall and with a second resistance that is greater than the first resistance when the prong contacts the wall. The cover play may also include at least one conductor electrically connecting the prong to the electric load.

Various embodiments of active cover plates are disclosed. Active cover plates may include a face plate, an electrical load, at least one clip extending rearward from the faceplate. The clip may include a contact, a resilient strip supporting the contact, wherein the contact is joined to the resilient strip and passes through the resilient strip, and a rear insulator covering a rear side of the contact. An electrical connection may be formed between the clip and the electrical load.

Various embodiments of a wall-plate system are disclosed. For example, wall-plate system may extend in longitudinal, lateral, and transverse directions that are orthogonal to one another. The wall-plate system may include any or all of the following: (1) a face plate; (2) a back plate; (3) electronic circuitry; (4) at least one spring clip comprising at least one first portion of conductive material and resiliently deflecting between a neutral position and a deflected position located outboard of the neutral position in the lateral direction; (6) at least one insulator positioned outboard of the at least one first portion of conductive material in the lateral direction; (7) the at least one insulator tracking the at least one spring clip as the at least one spring clip deflects between the neutral position and the deflected position.

A lid for a junction box includes a structure which is arranged to connect and seal an opening of the junction box. The sealing prevents the ingress of foreign matter such as liquids or solid particles into the junction box. The structure is, or includes, a window that is transparent to visible light to enable visual inspection inside the junction box. The lid includes a cover that is opaque to UV or UV-IR wavelengths and is arranged to selectively: (a) shield the transparent portion of the structure from direct impingement of a wavelength or a band of wavelengths to prevent transmission of the wavelength or a band of wavelengths into the junction box; and (b) enable visual inspection inside of the junction box through the transparent portion.

A ground structure of a controller that is mounted in a construction machine such as a dump truck and has a case having an upper surface on which a connector receiver hole for a receptacle connector to be received is provided includes: a cable harness that is provided by a plurality of cables including a ground cable and is connected to the receptacle connector; and a connecting portion for the ground cable to be connected, the connecting portion being provided near the connector receiver hole on the upper surface.