An extendable electrical box comprises an electrical box having two open ends to an internal box space having a first depth. The electrical box comprises a mounting structure attached to at least one wall of the electrical box. The mounting structure is configured to mount the electrical box to a vertical wall structure such that the open end faces substantially parallel to the vertical wall structure. At least two extendable first rings each continuously surround one of the two open ends of the electrical box. The at least two extendable first rings are each slidably coupled with the electrical box via the sliding mechanical cooperation of one or more guides with one or more tracks, such that sliding either of the at least two extendable first rings in relation to the open ends of the electrical box expands the electrical box from the first depth to a larger second depth.

A distribution board shield. The distribution board shield includes a drape formed of an elongated non-conductive material having a top end, a bottom end, a rear surface and a front surface. A connector is used to attach the drape within a distribution panel box so that the drape covers exposed bar buses, breaker busses and wires within the working area.

Aspects and techniques of the present disclosure relate to enclosures, such as, electrical enclosures, for example, explosion-proof enclosures, and including advantageous features and methods usable with such enclosures. Disclosed features and techniques relate to: an enclosure fastening device; a visual indicator; an enclosure handling assist arrangement; a control handle; and a reset controller.

A fiber optic node includes an electronics equipment enclosure. The electronics equipment enclosure includes a lid and a base defining an overall interior space of the electronics equipment enclosure. The lid includes a lid top and a lid mating surface to contact and overlap a base mating surface of the base to close the electronics equipment enclosure. The lid further includes at least one lid side wall extending away from the lid top. The at least one lid side wall includes at least one protruding lid side wall extending outwards to project beyond the lid mating surface. The base includes a base bottom and at least one base side wall extending away from the base bottom. The base further includes a base mating surface to contact and overlap the lid mating surface of the lid to close the electronics equipment enclosure.

A circuit assembly is provided with a circuit unit that includes an electrically conducting path on which electronic components are mounted, a heat discharging member that is placed on the circuit unit, and is configured to discharge heat of the circuit unit, and a spacer that is disposed between the circuit unit and the heat discharging member. The spacer is provided with a main portion that is disposed between the circuit unit and the heat discharging member, and accommodating portions that accommodate a part of the circuit unit.

The present invention discloses a junction box for a solar cell. The junction box includes a box body, wherein the box body is provided with a plurality of conducting pieces for connecting solar cell pieces; two adjacent conducting pieces are connected by a diode; the conducting pieces at both ends are connected to the outside parts via a guide line respectively; and the forward dissipation power of the diode in the middle is less than that of the diodes at both sides. According to the invention, the diode with lower forward dissipation power is employed in parts where the temperature rise is easily produced to reduce the temperature rise; while the diode with higher forward dissipation power is employed in parts where the temperature rise is not easily produced to control cost.

The invention discloses a junction box for a solar cell. The junction box includes a box body, wherein the box body is provided with a plurality of conducting pieces for connecting solar cell pieces; two adjacent conducting pieces are connected by a diode; the conducting pieces at both ends are connected to the outside via a guide line respectively; and the chip area of the diode in the middle is bigger than that of the diodes at both sides. According to the invention, the diode with bigger chip area is employed in parts where the temperature rise is easily produced to reduce the temperature rise; while the diode with smaller chip area is employed in parts where the temperature rise is not easily produced to control cost.

A connection box with reliable and yet inexpensive contacts for solar panels to enable the use of multiple types of passive and active covers for different functionalities in the junction box built into the panel.

An example integrated electrical assembly for installation in a building structure is disclosed. The integrated electrical assembly may provide for power and telecommunications distribution in a building structure or a subspace of a building structure. A master tub configured to receive a plurality of electrical components and provide a common ground is disclosed. The master tub may be used in the integrated electrical assembly or alone. A multi-wire connector that may provide coupling of one or more wires to a circuit is disclosed. A junction box that may be installed in a wall, such as a pre-fabricated wall is disclosed.

An improved mounting block has a base plate portion and a face plate portion. Base plate portion has an outer surface extending outward from a mounting surface and is selectively attachable to the face plate portion. One of the face plate portion and the base plate portion has a plurality of snap fit teeth formed thereon, and the other has a plurality of snap fit receivers, configured to selectively receive the snap fit teeth. Face plate portion may include flange flex grooves formed in an attachment flange, allowing walls to deflect independently from corners, such that the flange flex grooves allow the attachment flange to flex outward from the outer surface. Base plate portion may include alignment ribs extending outward from the outer surface, such that the flange flex grooves formed in the attachment flange interface with the alignment ribs formed on the base plate portion.