Middle Atlantic 28W/46SP/32D Swing Wallrk - SR28-46-32

Middle Atlantic SR28-46-32 46U Large Pivoting Wall Rack

Overview

The Middle Atlantic SR28-46-32 is a 46U large-format pivoting wall rack built for deployments where floor space is unavailable but full-depth rack capacity is non-negotiable. At 32 inches deep with a 500 lb UL-rated load capacity and seismic certification, this is not a light-duty shelf solution — it is a permanent structured infrastructure enclosure designed for network rooms, security head-end closets, and AV equipment bays where you need rack-density without a dedicated equipment room. The SR28-46-32 (often searched as SR28 46 32) swings away from the wall to provide full rear access to cabling, patch panels, and equipment back-planes — eliminating the contortions required by fixed wall-mount alternatives.

Manufactured in the USA and TAA compliant, this rack is procurement-ready for federal, state, and municipal projects with domestic-origin requirements. Browse the full Middle Atlantic rack and enclosure catalog for companion products including horizontal cable managers, blanks, and power distribution.

Key Features

• 46 Rack Units of Usable Space: 46 RU across 80.5 inches of usable interior height means you can house a full security head-end — NVRs, PoE switches, access control panels, patch panels, and UPS — without cascading into a second enclosure. That consolidation matters in facilities where a single IDF closet handles the entire building.
• 500 lb UL-Listed Load Capacity: The SR28-46-32 carries up to 500 lbs (226.8 kg) of installed equipment, UL-listed. That rating accommodates high-density configurations: enterprise NVRs with drive cages, multi-port PoE switches, and battery backup units simultaneously. Do not assume load ratings from unlisted racks — the UL listing is the difference between a warranty claim and a structural incident.
• 32-Inch Total Depth / 25.5-Inch Usable Depth: Total external depth of 32 inches houses equipment with up to 25.5 inches of usable interior depth — sufficient for full-depth 1U/2U servers, deep UPS units, and high-port-count switches that routinely run 20–24 inches. Shallow-depth wall racks cap out around 18 inches and force mid-mount compromises; this rack does not.
• Pivoting (Swing-Out) Door Design: The swing-away frame provides unrestricted rear access without pulling equipment from the rack. For any installation with rear-terminated patch panels or rack-mounted UPS battery modules, this is operationally critical — especially in closets where there is no room to stand behind a fixed enclosure.
• Seismic Load Capacity Rating: UL-listed for seismic load capacity, making this rack deployable in seismic zones where building codes and insurance requirements mandate rated infrastructure. California, Pacific Northwest, and New Madrid Seismic Zone deployments should verify local code requirements; this rack meets the equipment-side obligation.
• Forward Compatible with Forward Rackrail: The forward-compatible rail design and Forward Rackrail system allow future accessory upgrades — tool-less rail kits, cable management arms, and mounting accessories — without replacing the enclosure. That forward compatibility protects the infrastructure investment across equipment refresh cycles.
• TAA Compliant / Federal Origin (USA): Manufactured in the United States and compliant with the Trade Agreements Act. Required for GSA schedule orders, DoD facility work, and state/local government projects subject to domestic-preference procurement rules. The CSA standard listing confirms TAA status at the product level.
• 29-Inch External Width: At 29 inches wide, the SR28-46-32 fits standard wall-mount structural framing spans and clears most door frames during installation — relevant given the 306.5 lb product weight (351 lb shipping weight) that makes repositioning after installation impractical.

Integration & Compatibility

The SR28-46-32 accepts standard 19-inch EIA-310 rack equipment across all 46 RU. The Forward Rackrail system is compatible with Middle Atlantic's cable management, blanking panels, and power distribution accessories. Plan wall-attachment to structural studs or blocking rated for the combined dead load of the enclosure (306.5 lbs) plus full equipment load (up to 500 lbs) — the wall substrate, not the rack, is the limiting factor on most retrofits. For complete network rack and enclosure planning including wall-mount hardware, verify stud spacing and blocking requirements with your structural contractor before installation. Pair with a rack-mount UPS to protect installed security and network equipment; the 46 RU capacity provides room for a 2U–3U battery backup without sacrificing operational equipment slots. For PoE network switches powering camera infrastructure, verify that your chosen switch depth clears the 25.5-inch usable interior — most 48-port managed switches fall within that range.

Frequently Asked Questions

Q: Is the SR28-46-32 TAA compliant for government procurement?

A: Yes. The SR28-46-32 is TAA compliant with a Federal Operations Country of Origin listed as USA. It meets domestic-preference procurement requirements for GSA schedule orders and government facility projects.

Q: What is the actual usable rack depth inside the SR28-46-32?

A: Usable interior depth is 25.5 inches (64.8 cm). Total external depth is 32 inches. Plan equipment selection around the 25.5-inch interior figure — that is the constraint for full-depth servers, UPS units, and high-port-count switches.

Q: How many rack units does the SR28-46-32 provide?

A: 46 rack units total, with 80.5 inches of usable interior height. The overall enclosure stands 101.75 inches (258.4 cm) tall.

Q: Is the SR28-46-32 seismic rated?

A: Yes. The SR28-46-32 is UL-listed for seismic load capacity. This makes it suitable for deployments in seismic zones where rated enclosures are required by code or insurance requirements.

Q: What is the maximum load capacity of the SR28-46-32?

A: UL-listed load capacity is 500 lbs (226.8 kg). Product weight (empty enclosure) is 306.5 lbs; shipping weight is 351 lbs. Factor the empty rack weight into your wall-mount structural load calculations.

Q: Does the SR28-46-32 swing out for rear access?

A: Yes. The SR28-46-32 is a pivoting (swing-out) wall rack. The frame swings away from the wall to provide full rear access to cabling, equipment back-planes, and patch panel terminations — a necessary feature in closets where standing behind a fixed enclosure is not possible.