---
publication_id: "OT-2026-000000467"
title: "Electrical box"
published_at: "2026-09-15T19:02:55.430068Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000467"
categories:
  - "industrial-components-safety-infrastructure/electrical-infrastructure"
keywords:
  - "h02g3/14"
  - "h02g3/081"
  - "h02g3/088"
  - "h02g3/10"
---

# Electrical box

## Abstract

Presented are multipiece, surface-mount electrical boxes, methods for making/using such electrical boxes, and electrical systems equipped with such electrical boxes. A representative electrical box is a bipartite assembly that includes a backplate and a faceplate. The backplate includes a planar body that seats against a load-bearing support surface, such as an exterior face of a building wall. The faceplate includes a dome-shaped central hub with a mounting flange that projects outward from the central hub and mounts to the support surface. The mounting flange includes a recessed backstop that receives therein and surrounds the backplate. A set of flexible press-fit tabs may project from the backplate's planar body such that the backplate is slidably received in the recessed backstop and the press-fit tabs interference fit with the interior walls of the recessed backstop. The backplate and faceplate may each be integrally formed from a polymeric material as a single-piece structure.