Middle Atlantic 40SP/28D Rack W/rear DR - ERK-4028

Middle Atlantic ERK-4028 40U Floor-Standing AV Rack with Rear Door

Overview

The Middle Atlantic ERK-4028 is a 40-rack-unit, 28-inch-deep floor-standing equipment rack built for surveillance head-end rooms, broadcast machine rooms, and enterprise AV/IT closets where structural integrity and long-term load reliability are non-negotiable. At 40U of usable panel space and a UL-listed load capacity of 2,500 lbs, this steel rack handles dense NVR, server, and switching builds without flexing or racking fatigue. The included rear door sets it apart from open-frame variants — useful whenever you need basic access control or cable protection at the rear of the enclosure without committing to a full enclosed cabinet. ERK-4028 ships as a frame-only configuration, so you choose your own side panels, PDUs, and cable management rather than paying for a fully enclosed cabinet you may not need.

Key Features

• 40U Rack Height (70.13 in usable): 70.13 inches of usable mounting height means you can fill a dense head-end build — 16-channel NVR stack, patch panels, PoE switches, KVM, UPS — without running out of vertical space mid-project. The 74.13-inch overall height fits standard 7-foot ceiling clearances with minimal overhead concern.
• 2,500 lb UL-Listed Load Capacity: UL-rated to 2,500 lbs (1,134 kg) of static load. In practical terms, that covers virtually any combination of commercial NVRs, servers, storage arrays, and power equipment you're likely to deploy — including future capacity expansion without re-speccing the rack.
• 28-Inch Cabinet Depth (26.47 in usable): 26.47 inches of usable depth accommodates full-depth 1U/2U rack-mount servers and network appliances that standard 24-inch racks can't fit. If your NVR or server hardware runs 20–24 inches deep, this rack gives you the clearance to cable cleanly at the rear without forcing tight bends.
• Rear Door Included: The rear door provides a basic physical barrier for rear cable runs and restricts casual access to terminations and patch points — a practical addition for shared spaces or co-located closets where multiple trades have access. Not a locking security cabinet, but enough to enforce intentional rear-access discipline on the install.
• 10-32 Rack Rail Threading: Standard 10-32 tapped rails are compatible with the full universe of rack-mount equipment, including most NVR chassis, UPS units, switches, and accessories. No cage nut tools needed — threaded rails simplify installation, especially useful on high-density builds where you're mounting and adjusting equipment repeatedly.
• Seismic Load Capacity (UL Listed + ASCE): UL-listed for seismic load capacity and ASCE-compliant — required for installations in California and other seismic zones, and increasingly specified in government, healthcare, and education bids. If your project spec calls for seismic-rated enclosures, the ERK-4028 satisfies that requirement out of the box.
• TAA Compliant, USA Origin: Manufactured in the USA and TAA-compliant — essential for federal, state/local government, and education projects where the Trade Agreements Act is a bid requirement. The country-of-origin documentation is straightforward for procurement teams.
• Steel Construction, Black Wrinkle Powder Coat: Heavy-gauge steel frame with a black wrinkle powder-coat finish resists scratching during installation and day-to-day equipment swaps. The finish holds up in utility-grade machine rooms where appearance matters less than durability over a multi-year equipment lifecycle.
• 22-Inch Overall Width: At 22 inches wide overall with a 19-inch panel width, the ERK-4028 fits standard rack bays and most raised-floor tile cutouts. Verify your room layout if you're placing multiple racks side-by-side in a tight row — allow for door swing clearance on the rear door.

Integration and Compatibility

The ERK-4028 (often searched as ERK 4028) is a frame-only rack — it ships without side panels, a front door, PDUs, or cable management accessories. This is intentional: integrators building out surveillance head ends typically have specific PDU, cable manager, and blanking panel requirements that vary project to project. Middle Atlantic's own accessory ecosystem (side panels, brush-strip cable entries, horizontal cable managers, lacing bars) mounts directly to this frame. Standard 10-32 threading ensures compatibility with third-party rack accessories as well. The 40U height is consistent with standard EIA-310 rack dimensions, so any compliant 19-inch equipment — NVR appliances, PoE switches, patch panels, KVM drawers, rackmount UPS units — mounts without modification. For dense network video recorder deployments where storage arrays and redundant switching occupy multiple rack units, the 2,500-lb load rating gives you real headroom for full buildouts. If you're speccing this rack alongside PoE switches or high-channel-count NVRs from the Middle Atlantic product line, confirm your total equipment weight stays well under the rated ceiling — in practice, most surveillance head ends land in the 400–800 lb range, so the ERK-4028 is sized for significant future expansion. Integrators speccing floor-standing racks for government or education projects should verify TAA compliance at the BOM review stage — this rack satisfies that requirement. For guidance on rack selection and infrastructure planning, the rack and enclosure planning guide covers depth, load, and thermal considerations in detail.

Frequently Asked Questions

Q: Is the Middle Atlantic ERK-4028 TAA compliant?

A: Yes. The ERK-4028 is TAA compliant and manufactured in the USA, making it eligible for federal, state/local government, and education procurement where the Trade Agreements Act applies.

Q: What is the load capacity of the ERK-4028?

A: The ERK-4028 carries a UL-listed load capacity of 2,500 lbs (1,134 kg). This covers virtually any combination of commercial NVR, server, switching, and power equipment in a typical surveillance or AV head-end build.

Q: Does the ERK-4028 include a rear door?

A: Yes. The ERK-4028 includes a rear door as part of the base configuration. Side panels, front door, PDUs, and cable management are not included — this is a frame-only rack.

Q: What rack rail type does the ERK-4028 use?

A: The ERK-4028 uses standard 10-32 tapped rack rails, compatible with the full range of rack-mount equipment including NVRs, switches, UPS units, and patch panels. No cage nuts are required.

Q: Is the ERK-4028 seismic rated?

A: Yes. The ERK-4028 is UL listed for seismic load capacity and ASCE compliant — required for installations in seismic zones and commonly specified in California, government, healthcare, and education projects.

Q: What is the usable depth inside the ERK-4028?

A: Usable depth is 26.47 inches (67.2 cm), which accommodates full-depth rack-mount servers and NVR appliances. Overall cabinet depth is 28 inches.

Karl Wilson

The ERK-4028 is the rack I reach for on mid-to-large surveillance head-end builds where the equipment list is dense and the project has a government or education procurement layer requiring TAA compliance and seismic certification. That 2,500-lb UL load rating isn't marketing copy — it's what lets you confidently spec a full NVR stack, redundant switching, patch infrastructure, and a rackmount UPS into a single enclosure without revisiting the structural math later in the project.

Technical Highlights:

• 26.47 in usable depth: Full-depth servers and NVR appliances that measure 20–24 inches deep fit without forced cable bends at the rear — a detail that matters significantly on 40U builds where rear cable management becomes complex.
• 10-32 tapped rails: Threaded rails eliminate the cage nut step on every equipment mount, which adds up to real time savings on dense 40U installs where you're racking 20–30 devices and adjusting positions as the build evolves.
• Seismic + ASCE compliance: UL-listed seismic rating satisfies California Title 24 and ASCE 7 specifications — if you're bidding state, education, or healthcare work in seismic zones, this clears the spec requirement without an engineering variance request.

Deployment Considerations:

• This is a frame-only configuration — budget and source side panels, cable managers, blanking panels, and PDUs separately. For a fully dressed 40U surveillance head end, that accessory list adds meaningful cost and lead time; confirm availability before locking the project schedule.
• Overall height is 74.13 inches. Verify doorway clearance before delivery — a 6-foot-2-inch rack doesn't navigate a standard 80-inch doorway with much margin, and the 158-lb shipping weight means it arrives fully assembled, not knocked down.

For a government or education surveillance buildout — think a district-wide camera refresh landing at a central monitoring facility — the ERK-4028 hits the practical trifecta: TAA-compliant for bid compliance, seismic-rated for zone requirements, and deep enough to house whatever NVR and server hardware the system integrator specifies without retrofitting the rack mid-project.