Middle Atlantic 42U/610MMD Configured RK - IRCS-4224

Middle Atlantic IRCS-4224 42U Pre-Configured Floor-Standing Rack Enclosure

The Middle Atlantic IRCS-4224 is a 42-rack-unit, pre-configured floor-standing enclosure built for AV, security, and IT infrastructure deployments where structural integrity, usable space, and long-term serviceability matter. At 80.62 inches tall and 24 inches deep, this is a full-height rack designed to house dense equipment stacks — from network video recorders and managed switches to patch panels and UPS units — without compromise. If you're speccing a head-end closet, an operations center, or a dedicated server room, the IRCS-4224 (often searched as IRCS 4224) belongs on your shortlist.

Overview

The IRCS-4224 ships as a pre-configured unit from Middle Atlantic's Essex RCS line, meaning the structural assembly is done — you're not building a rack from flat-pack hardware. The enclosure is manufactured in the USA and carries TAA compliance (UL Listed), which satisfies federal procurement and GSA requirements without additional paperwork. The textured metallic gray powder coat finish is standard for data center and operations center aesthetics and holds up to the kind of contact and cable management that happens over years of maintenance cycles. For integrators working on government facilities, education, or defense-adjacent projects, the domestic origin and TAA status close a common RFP checkbox immediately.

Browse the full Middle Atlantic rack and enclosure catalog to compare this model against shallow-depth and open-frame alternatives in the same line.

Key Features

• 42 Rack Units of Usable Space: 73.5 inches (186.7 cm) of usable height across 42U means you can fill this enclosure with a realistic mix of 1U, 2U, and 4U equipment without running out of room mid-project. A full NVR stack, a managed PoE switch, and a UPS can coexist without creative math.
• 1,200 lb UL-Rated Load Capacity: The 1,200 lb (544.3 kg) UL-certified structural load rating isn't just a marketing figure — it's a tested value that matters when you're stacking heavy UPS batteries, blade servers, or dense patch infrastructure. Most installations won't approach this ceiling, but having UL verification means your liability exposure on a heavy government or healthcare build is covered.
• 20.1-Inch Usable Depth: The rack's 24-inch total depth translates to 20.1 inches (51.1 cm) of usable depth for equipment — enough to accommodate full-depth 1U servers and most commercial NVR chassis without rear-panel crowding. For floor-standing rack enclosures, this depth tier is the practical minimum for mixed IT/AV deployments.
• 19-Inch EIA-Standard Panel Width: The 19-inch (48.3 cm) panel width is universal — every standard rack-mount device from a Cisco switch to a Genetec appliance drops straight in. No adapter rails, no compatibility headaches.
• 10-32 Rack Rail Threading: 10-32 threaded rails are the correct standard for rack-mount security and AV equipment (as opposed to M6 cage-nut rails, which are more common in pure server environments). If your equipment uses rack screws rather than cage nuts, 10-32 is what you need, and the IRCS-4224 is built for it.
• TAA Compliant, USA-Made: Federal origin and TAA compliance (UL Listed designation) means this rack qualifies for GSA schedules and federally-funded infrastructure projects. Domestic manufacturing also simplifies lead time predictability for time-sensitive deployments.
• Textured Metallic Gray Powder Coat: The finish isn't decorative — powder coat on steel handles the cable pulls, rack ear contact, and general wear of an actively-serviced enclosure without chipping or oxidizing over a multi-year lifecycle.
• 23.3-Inch Exterior Width: At 23.3 inches (59.2 cm) wide, the IRCS-4224 fits through standard 24-inch doorways with reasonable clearance — an often-overlooked constraint when speccing full-height enclosures for existing facilities.

Integration & Compatibility

The IRCS-4224 is compatible with standard 19-inch EIA rack-mount equipment across AV, IT, and physical security categories. The 10-32 threaded rail system supports rack screws directly — no cage nuts required, which simplifies installation and reduces hardware inventory. The 42U height and 20.1-inch usable depth make it a practical match for most commercial network switches, NVR appliances, and patch panels used in mid-to-large surveillance and access control head-ends.

For deployments requiring structured cable management, Middle Atlantic's cable management accessories and horizontal lacing bars are designed to integrate with the Essex RCS frame. Confirm specific accessory compatibility against Middle Atlantic's current product line prior to order. Planning a complete head-end? Review our rack and enclosure planning guide for cable management, power sequencing, and cooling considerations before finalizing your equipment list.

Frequently Asked Questions

Q: Is the Middle Atlantic IRCS-4224 TAA compliant?

A: Yes. The IRCS-4224 is TAA compliant with a UL Listed designation and is manufactured in the USA, making it eligible for GSA schedule purchases and federally-funded infrastructure projects.

Q: What is the UL-rated load capacity of the IRCS-4224?

A: The IRCS-4224 carries a UL-certified load capacity of 1,200 lbs (544.3 kg). This is a tested structural rating, not a manufacturer estimate.

Q: What rail type does the IRCS-4224 use — cage nut or threaded?

A: The IRCS-4224 uses 10-32 threaded rails. Rack-mount equipment with standard 10-32 rack screws installs directly without cage nuts. If your equipment requires M6 cage nut rails, this is not the correct model.

Q: How much usable rack space does the IRCS-4224 provide?

A: The IRCS-4224 provides 42 rack units (73.5 inches / 186.7 cm) of usable height and 20.1 inches (51.1 cm) of usable depth — sufficient for full-depth 1U servers and most commercial NVR or AV chassis.

Q: What are the exterior dimensions and shipping weight of the IRCS-4224?

A: Exterior dimensions are 80.62 inches tall × 23.3 inches wide × 24 inches deep. The unit weighs 211.1 lbs and ships at 257 lbs including packaging.

Q: Does the IRCS-4224 fit through a standard doorway?

A: At 23.3 inches wide, the IRCS-4224 fits through most standard 24-inch doorways, but clearance is minimal. Measure your access path — including any turns — before delivery, particularly in older facilities with narrower frames.

Marty Allison

The IRCS-4224 is one of the few pre-configured 42U enclosures I'd specify without hesitation on a government or healthcare head-end build. The 1,200 lb UL-certified load rating is the number that matters most in dense deployments — and that UL listing on a TAA-compliant, USA-made enclosure clears most federal procurement hurdles in a single line item.

Technical Highlights:

• 1,200 lb UL Load Capacity: At 544.3 kg tested, this rack handles the heaviest realistic security and AV stacks — dual UPS units, high-density NVR chassis, blade infrastructure — without structural concern. UL certification makes this defensible on any inspection.
• 20.1-Inch Usable Depth: Translates directly to full-depth equipment compatibility. Most 1U servers and commercial NVR appliances run 17–19 inches deep; the IRCS-4224 gives you clearance without rear-panel crowding or forced cable routing compromises.
• 10-32 Threaded Rails: This is the correct rail standard for mixed security/AV environments. Eliminates cage nut hardware entirely for standard deployments — faster installs, fewer parts to manage on-site.

Deployment Considerations:

• At 211.1 lbs unloaded and 257 lbs shipping weight, staging and positioning require at least two people and ideally a furniture dolly — plan your site access route before the truck arrives, especially in elevator-served facilities.
• The 23.3-inch exterior width clears a standard 24-inch doorway by less than an inch. In older buildings with door frames that aren't perfectly square or have trim that reduces the opening, this can be a tight pass — measure the actual clear opening, not the nominal frame width.

The IRCS-4224 is the right spec for a dedicated security operations head-end or government network closet where TAA compliance, structural load certification, and domestic origin are non-negotiable — not a casual server room where a lighter open-frame alternative would do the job at lower cost.