Middle Atlantic 46 Space 28IN. Deep Wallrack ***Drop Ship Only*** - SR-46-28

Middle Atlantic SR-46-28 46U Large Pivoting Wall Rack

Overview

The Middle Atlantic SR-46-28 is a 46-rack-unit, 28-inch-deep pivoting wall rack engineered for high-density deployments where floor space is constrained but equipment load isn't. At 101.75 inches tall with 80.5 inches of usable rack height, this unit supports everything from security NVRs and patch panels to UPS units and edge compute nodes — all without consuming a square foot of floor real estate. Built in the USA and TAA compliant, the SR-46-28 (often searched as SR 46 28) is a natural fit for federal, state, and local government facilities, healthcare, and any environment where procurement rules require domestic origin. If you're building out a rack enclosure solution for a mid-to-large commercial or institutional space, this is one of the few wall racks that can genuinely replace a full floor-standing cabinet without compromise.

Key Features

• 46U Capacity / 80.5 in Usable Height: With 80.5 inches of usable rack height (204.5 cm), you have room to fully populate a security head-end: NVRs, switches, patch panels, fiber termination, and UPS backup — all in a single wall-mounted unit. Few wall racks in this class deliver this much usable real estate without requiring floor anchoring.
• 500 lb UL Load Capacity: UL-listed for 500 lbs (226.8 kg), this rack handles fully populated NVR shelves, multi-port PoE switches, and battery backup without structural concern. The UL listing means the rating is tested and verified, not a manufacturer estimate — critical for insurance and facility compliance documentation.
• 335 lb Seismic Load Capacity / CSA Standard: Seismic-rated to 335 lbs (152 kg) to CSA Standard (ASCE), making this rack suitable for deployments in seismic zones — California data centers, Pacific Northwest facilities, or any site where local code requires seismic compliance. Most wall racks skip seismic certification entirely.
• 28 in Depth / 26 in Usable: The 28-inch overall depth provides 26 inches of usable depth (66 cm) — enough to comfortably seat full-depth 1U servers, deep NVR appliances, and cable management accessories without forcing rear-of-rack compromises. Check your deepest device's specified max depth against 26 inches before spec-committing.
• Forward Rackrail / Forward Compatible Design: The forward rackrail configuration and forward-compatible design means you can add future rail accessories, cable management, or mounting hardware without replacing the rack frame. This matters on long-lifecycle installations where the equipment mix evolves over 5–10 years.
• TAA Compliant / USA Manufactured: Federal Origin of Manufacture is listed as USA, and the unit carries TAA compliance — required for GSA Schedule purchases, federal contracts, and many state/local government procurement vehicles. If your bid spec includes TAA language, the SR-46-28 checks the box without exceptions.
• 23.5 in Width (59.7 cm): Standard EIA 19-inch rack width with an outer frame of 23.5 inches. Verify rough-in opening dimensions and wall clearance before scheduling installation — the pivoting mechanism requires swing clearance in front of the unit for rear access.

Integration and Compatibility

The SR-46-28 uses standard EIA 19-inch rack rail spacing, making it compatible with virtually all rack-mount security and IT equipment — Milestone and Genetec server appliances, Axis or Hanwha NVRs, Cisco or Ubiquiti switches, APC or Vertiv UPS units. The forward rackrail design supports standard rack accessories from Middle Atlantic's own accessory line as well as third-party cable management and shelf systems. For high-density network video recorder deployments, pair this rack with a dedicated PoE switch mounted in the lower RUs to centralize power distribution and minimize cable runs to cameras. Review your wall structure carefully: at a shipping weight of 266 lbs (120.7 kg) and a 500 lb load capacity, the supporting wall assembly must be engineered for the combined static load. Stud-only mounting is typically insufficient at full load — consult a structural engineer or Middle Atlantic's installation guidelines for blocking and anchor requirements. The pivoting wall mount design is a significant operational advantage in wiring closets and server rooms where rear equipment access would otherwise require unmounting the entire rack.

Frequently Asked Questions

Q: Is the Middle Atlantic SR-46-28 TAA compliant for federal government purchases?

A: Yes. The SR-46-28 is TAA compliant and manufactured in the USA, making it eligible for GSA Schedule and other federal procurement vehicles that require Trade Agreements Act compliance.

Q: What is the load capacity of the SR-46-28, and is it UL listed?

A: The SR-46-28 carries a UL-listed load capacity of 500 lbs (226.8 kg). The UL listing means this rating is independently tested — not a self-certified estimate.

Q: Is the SR-46-28 seismic rated?

A: Yes. The SR-46-28 is seismic rated to CSA Standard (ASCE) with a seismic load capacity of 335 lbs (152 kg), making it suitable for installations in seismic zones where local code requires compliance.

Q: How much usable rack space does the SR-46-28 provide?

A: The SR-46-28 provides 46 rack units (RU) of usable space, with 80.5 inches (204.5 cm) of usable height and 26 inches (66 cm) of usable depth inside the rack frame.

Q: Does the pivoting mechanism require additional wall clearance?

A: Yes. Because the SR-46-28 is a pivoting wall rack, you need swing clearance in front of the unit to open it and access the rear of mounted equipment. Factor this into your room layout and aisle planning before installation.

Q: What wall construction is required to support the SR-46-28?

A: Given the unit's shipping weight of 266 lbs and a UL load capacity of 500 lbs, standard stud mounting alone is typically inadequate at full load. A properly engineered wall blocking assembly or structural anchor system is required — consult a structural engineer or the manufacturer's installation documentation for your specific wall construction type.

Ted Perry

The SR-46-28 is the wall rack I'd spec for a security operations head-end in a building where pulling a floor permit isn't an option but you still need to house 30–40U of active equipment. The 500 lb UL-listed load capacity is what separates this from most wall mounts — that rating supports a realistic combination of NVRs, managed PoE switches, fiber patch panels, and a UPS without hitting the structural ceiling most wall racks impose at 150–200 lbs.

Technical Highlights:

• 500 lb UL Load Capacity: Independently tested and UL listed — not a paper spec. At full population with dense NVR appliances and battery backup, you can load this rack to real-world weights without engineering concern, provided the wall assembly is adequately blocked and anchored.
• 335 lb Seismic Rating (CSA/ASCE): The seismic certification is genuinely useful in California, the Pacific Northwest, and any jurisdiction that applies ASCE 7 seismic design requirements to IT infrastructure. Most wall racks at this size simply don't have it.
• 26 in Usable Depth: Twenty-six inches of clear depth accommodates full-depth 1U appliances and deep NVR chassis that routinely run 24–25 inches. This isn't a shallow-mount wall bracket — it handles real security rack hardware.

Deployment Considerations:

• The pivoting mechanism is the operational payoff on this unit — rear cable access without unmounting equipment is a real time saver during moves, adds, and changes. But it demands pre-planned swing clearance. In tight wiring closets, measure the open-swing envelope before committing to the mounting location.
• At 266 lbs shipped and 500 lbs UL capacity, wall blocking is non-negotiable. A standard 16-inch stud bay without structural blocking will not reliably hold this rack at full load. Get a structural detail from the GC or Middle Atlantic's install docs before rough-in.

This rack is purpose-built for institutional security head-ends — government facilities, healthcare, higher education — where TAA compliance is a procurement requirement, seismic certification may be a code requirement, and the equipment density rules out smaller wall mounts. It's not the right call for a 6U closet, but for a 30–46U wall-mount installation with federal or municipal procurement strings attached, the SR-46-28 covers every box on the compliance checklist.