APC by Schneider Electric AR112SH4 12U Single-Hinged Wall-Mount Enclosure

Overview

The AR112SH4 is a 12U, 400mm-deep wall-mount enclosure from APC by Schneider Electric, built for small network closets, wiring rooms, and IDF locations where floor space is limited and a full rack cabinet isn't justified. The single-hinged door swings open to provide direct frontal access without requiring you to pull equipment from the wall — practical in confined corridors and utility spaces where aisle clearance doesn't exist. At 400mm depth, it accommodates standard patch panels, switches, and similarly dimensioned active network gear without projecting excessively from the wall surface. The black powder-coat finish suits both finished office environments and back-of-house installations.

Compatibility

Fits standard 19-inch rackmount equipment up to 12U in height and up to approximately 400mm in depth — this covers most 1U and 2U managed switches, patch panels, small UPS units, and access-control or IP-intercom head-end controllers sized for wall-mount deployments. Designed to integrate within the APC NetShelter WX wall-mount enclosure family, making it a natural match alongside other WX-series accessories and mounting hardware from the same line. Verify your deepest piece of equipment (including cable bend radius behind the unit) clears the 400mm interior before ordering — cable management accessories and dense patch fields can reduce usable depth.

Installation Notes

Mounting Type is wall-mount; ensure the installation surface (concrete block, metal stud with backing plate, or solid wood blocking) is rated to support the combined weight of the enclosure and loaded equipment. The single-hinge design requires unobstructed swing clearance on the hinge side — account for this during rough-in planning, particularly in narrow closets. Rack unit count is 12U; plan your U-space allocation before populating to avoid overcrowding active gear with insufficient airflow margin.