Electrical installation boxes

An electrical installation box is selected according to the wall, mounting method and mechanism to be placed inside it. Compare the system and mounting space before choosing frames, covers and other accessories. For more than one mounting position, record the purpose and kit for each location separately.

First clarify the substrate

Titles include mounting boxes for plasterboard and brick walls, universally designated versions and surface-mounted boxes. Check the exact reference against the actual substrate. The general "universal" designation does not replace the specific model's instructions. For replacement, establish existing space dimensions and the chosen mechanism's requirements. If installation is still being designed, coordinate the box with the other parts of the electrical installation series.

Modular format and depth

Record the number and type of mechanisms for each position, then check their intended mounting format. Compare the depth and free connection space using the kit documentation. Opening size, external dimensions and usable depth are separate data to check. Do not assume identical compatibility for all mounting boxes from one brand. To compare the series shown, you can browse LEGRAND, BTICINO or SCHNEIDER ELECTRIC.

What is included with the mounting box

Review whether the item is a main box, surface mounting box, cover or supplementary part. Clarify which frames, supports and other elements the selected system requires. Check the package contents and do not transfer completeness from a similar photograph. When combining several items, also compare the grouping parts provided for the specific series. Keep the mounting box and mechanism references on one line in the list for the corresponding location.

Distinguish the mechanism from the branch connection

If you need space for cable connections or other installation equipment, continue to junction and mounting boxes. The requirements there may differ from those for a switch or socket mounting box. The general mounting and junction boxes section is convenient for coordinating the two tasks. Before ordering, check the substrate, mounting method, system, dimensions and actually included parts for each position so that the list follows the project locations.