APC by Schneider Electric AR112SM 12U Wall Mount Rack Enclosure
Overview
The AR112SM is a 12U steel wall mount rack enclosure from APC by Schneider Electric engineered for space-constrained deployments where floor space is unavailable — server closets, IDF rooms, retail back-of-house, and surveillance equipment rooms. At 40.8 inches deep with a 348 lb weight capacity, the AR112SM accommodates side-mounted UPS units alongside network gear and NVRs, making it a practical solution where a separate UPS pedestal would create an obstacle. The locking swing handle provides low-profile security without requiring a key tool separate from standard rack access procedures. Constructed from steel and finished in black, it fits standard 19-inch rackmount equipment.
Compatibility
Accepts any standard 19-inch rackmount equipment up to 12U total. The 40.8-inch interior depth supports full-depth network video recorders, patch panels, and managed PoE switches without shelf adapters. Side-mount UPS configuration is the primary differentiator over standard wallmount enclosures — verify your UPS model's side-mount rail kit compatibility with APC before ordering. The 348 lb static load rating handles dense mixed loads: a fully populated NVR, UPS, and switch stack without structural concern on a properly anchored wall stud or concrete surface. Unit dimensions are 23.6 in (W) × 40.8 in (D) × 24.5 in (H); confirm available wall depth and clearance before mounting, as the 40.8-inch projection is substantial in tight corridors.
Installation Notes
Shipping dimensions are 52 in × 33.5 in × 31.5 in and the unit ships at 129.76 lbs — plan for two-person installation. Wall anchor selection must account for the combined enclosure weight plus maximum load capacity; concrete anchors or minimum two 16-inch on-center stud attachments are standard practice for this weight class. Confirm wall stud or concrete substrate load rating against the 348 lb capacity plus enclosure weight before final fastener selection. See the rack mounting guide for wall anchor torque and structural requirements applicable to heavy wallmount enclosures.
