Electrical Junction Box Diagram - Standard Metal Enclosure Design #3388150 (License: Personal Use)

This is a technical line drawing of a standard rectangular metal electrical junction box, featuring multiple circular knockout holes on its sides for conduit entry, mounting tabs with screw holes, and an open front for device installation. The interior shows a central partition and grounding lug locations, indicating compliance with NEC standards for safe wiring practices. The clean, isometric view highlights structural details essential for electricians during planning and installation.

This image is commonly used in electrical trade manuals, product catalogs, online tutorials, and building code documentation to illustrate enclosure types for wiring devices. It serves users seeking to identify box specifications, understand mounting configurations, or verify compliance with electrical codes.