Middle Atlantic Swinging Wallrack 40 Space Accommodates 20IN. Deep Equip ***Drop Ship - SR-40-22

Middle Atlantic SR-40-22 40U Large Pivoting Wall Rack

Overview

The Middle Atlantic SR-40-22 is a 40-rack-unit pivoting wall rack engineered for installations where floor space is constrained but equipment density is not. At 90.75 inches tall with 70 inches of usable rack height, this is a serious infrastructure cabinet — not a utility shelf. The swing-out design is the defining characteristic: the entire rack pivots away from the wall on demand, giving technicians full rear access to wiring, patch panels, and equipment without pulling a single piece of gear or removing the rack from service. For integrators managing dense AV, security, or network equipment in server closets, retail back rooms, or building telecom rooms, the SR-40-22 (often searched as SR 40 22) solves the perennial problem of rear-access in tight spaces without sacrificing rack density.

Manufactured in the USA and carrying TAA compliance, the SR-40-22 fits procurement requirements for government and federally funded projects where country-of-origin documentation matters. It is also UL Listed and meets CSA (ASCE) standards, supporting jurisdictions that require third-party structural verification on wall-mounted equipment.

Key Features

• 40 Rack Units / 70 in Usable Height: Forty RU of usable space in a single wall-mount footprint — enough to house a full NVR stack, managed PoE switches, patch panels, and UPS in one cabinet. At 70 inches of actual equipment space (177.8 cm), you're not giving up meaningful density compared to a floor-standing rack.
• 500 lb UL-Rated Load Capacity: The UL-certified 500 lb (226.8 kg) load rating means you can populate this rack with heavy gear — high-density servers, multi-drive NVRs, large UPS units — without worrying about whether the rating is a marketing number or a tested figure. UL Listed means a third party confirmed it.
• Seismic Rating at 335 lbs (152 kg): Where building codes require seismic compliance, this rack carries a 335 lb dynamic load rating. That's meaningful for installations in seismic zones — it narrows the gap between static and dynamic capacity so you can plan equipment loads with confidence rather than guessing.
• 20 in Usable Depth (22 in Overall): The 20-inch (50.8 cm) usable depth accommodates the vast majority of 1U and 2U rack-mount equipment on the market — NVRs, switches, patch panels, and most UPS units ship at 16–19 inches deep. The 22-inch overall depth (55.9 cm) accounts for the frame itself, so equipment won't bottom out against the rear structure.
• Swing-Out Pivot Design: The pivot mechanism is the core value proposition here. Instead of fighting with cable runs in a wall-flush fixed rack, the entire cabinet swings out — rear wiring, power strips, cable management, and all — on a hinged frame. This is particularly valuable in retrofit installations where conduit or structured cabling terminates directly at the rack and can't be easily repositioned.
• Forward-Compatible Rack Rail: The forward rackrail design supports equipment migration over time. As gear is swapped out, the rail geometry stays compatible with standard EIA rack-mount hardware — you're not locked into proprietary mounting accessories or a specific generation of equipment.
• TAA Compliant / USA Manufactured: Country of origin is documented as USA, and the unit carries full TAA compliance. For GSA schedule purchases, federal contracts, or any procurement requiring Buy American Act documentation, the SR-40-22 meets the threshold without requiring a waiver.
• CSA / UL Listed Structural Certification: Both UL listing and CSA (ASCE) standard compliance are confirmed. In jurisdictions where wall-mount racks require structural engineer sign-off or third-party load certification, having these certifications on file simplifies the approval process significantly.

Integration & Compatibility

The SR-40-22 uses standard EIA 19-inch rack rail spacing, making it compatible with virtually all commercial rack-mount equipment — switches, NVRs, patch panels, power distribution units, and UPS systems from any manufacturer. The forward rackrail configuration is explicitly noted as forward-compatible, meaning future equipment generations will mount without modification.

At 23.5 inches wide (59.7 cm) overall, verify wall stud spacing and blocking before installation — this is a 218 lb unit shipping weight, and proper wall anchoring to load-bearing structure is non-negotiable. Rear cable access via the swing-out mechanism makes structured cabling to wall-mounted patch panels straightforward compared to fixed-frame alternatives. Review your network switch and UPS equipment depths against the 20-inch usable depth before ordering — most standard 1U and 2U units fit comfortably, but deeper 4-post-style equipment may not.

For security and AV deployments, the SR-40-22 pairs naturally with rack-mount NVR systems and managed PoE switches that drive IP camera infrastructure. The 500 lb load rating gives you room to run a full multi-channel NVR, a managed switch stack, a patch panel, and a rack-mount UPS without approaching the load ceiling.

Frequently Asked Questions

Q: Is the Middle Atlantic SR-40-22 TAA compliant?

A: Yes. The SR-40-22 is TAA compliant and manufactured in the USA, making it eligible for GSA schedule purchases and federal procurement contracts requiring Buy American Act documentation.

Q: What is the maximum load capacity of the SR-40-22?

A: The SR-40-22 carries a UL-listed static load capacity of 500 lbs (226.8 kg). Under seismic-rated conditions, the dynamic load capacity is 335 lbs (152 kg).

Q: How deep is the SR-40-22, and will my equipment fit?

A: The SR-40-22 has 20 inches (50.8 cm) of usable equipment depth within a 22-inch (55.9 cm) overall cabinet depth. Most standard 1U and 2U rack-mount NVRs, switches, and patch panels are 16–19 inches deep and will fit without issue. Verify your specific equipment depth before ordering.

Q: Does the SR-40-22 swing out for rear access?

A: Yes. The SR-40-22 is a pivoting (swing-out) wall rack — the entire cabinet hinges away from the wall, providing full rear access to cabling, power distribution, and equipment without removing any installed gear from service.

Q: Is the SR-40-22 seismic rated?

A: Yes. The SR-40-22 is seismic rated with a dynamic load capacity of 335 lbs (152 kg), meeting CSA (ASCE) standards. This is relevant for installations in seismic zones where building codes require verified dynamic load compliance on wall-mounted infrastructure.

Q: How many rack units does the SR-40-22 provide?

A: The SR-40-22 provides 40 rack units (RU) of total capacity, with 70 inches (177.8 cm) of usable rack height for equipment installation.