Middle Atlantic 45IN. Rackspace (78.75) Aluminum Relay Rack - RLA19-1245

Middle Atlantic RLA19-1245 45U Open Frame Aluminum Relay Rack

Overview

The Middle Atlantic RLA19-1245 is a 45-rackunit open-frame aluminum relay rack built for integrators who need a no-compromise mounting structure for AV, security, and network equipment in equipment rooms, server closets, and back-of-house installations. At 84 inches tall with 78.75 inches of usable height, it delivers nearly full floor-to-ceiling rackspace without the enclosed-cabinet footprint — the right call when airflow and cable access matter more than locking doors. Sourced factory-new, the RLA19-1245 (often searched as RLA19 1245) ships at 39 lbs and installs in a two-post configuration that keeps your rack density high and your installation cost low.

Key Features

• 45 Rack Units of Usable Space (78.75 in / 200 cm): That's enough vertical real estate for a full NVR stack, patch panels, PoE switches, UPS units, and cable management — all in a single rack. The 78.75-inch usable height figure is the spec that actually matters when you're laying out your equipment schedule; the 84-inch overall height accounts for the frame itself.
• 400-lb UL-Listed Load Capacity: UL-listed at 400 lbs (181.4 kg), this rack won't be the weak point in a dense security or AV installation. Fully loaded NVRs, battery backup units, and patch panels add up fast — knowing the load rating is independently verified matters when you're responsible for the installation.
• Aluminum Construction, Silver Finish: Aluminum keeps the unloaded weight at 39 lbs shipping weight, which two installers can handle without mechanical assistance. Steel alternatives at this rack-unit count typically run heavier — the weight difference is felt on every stairwell and equipment room install.
• 12-24 Rack Rail Threading: Standard 12-24 threaded rails are compatible with the overwhelming majority of commercial security and IT equipment shipped today. No cage-nut adapter kits required for most hardware — you rack and go.
• 20.28-inch Width (51.5 cm): Fits standard 19-inch EIA rack equipment with clearance for cable routing on both sides. The 20.28-inch overall width is the number to check against your equipment room floor plan before ordering.
• 15-inch Depth (38.1 cm), 3-inch Usable Depth: The 15-inch overall depth keeps the footprint compact — useful in tight IDF closets or back-of-rack wall clearance situations. Note the 3-inch (7.6 cm) usable depth: this is a two-post relay rack, not a four-post equipment rack. Deep 1U/2U chassis need additional rear support or a four-post frame.
• TAA-Compliant, Made in USA: Federal Ops Country of Origin is USA, and the rack carries TAA compliance — required for GSA, federal, and many state/local government contracts. UL Listed per the TAA field. If your project has Buy American or TAA provisions, this clears that gate without a waiver.

Integration & Compatibility

The RLA19-1245 accommodates standard 19-inch EIA-310 rack equipment across network switches, NVRs, patch panels, and power distribution units. The 12-24 threaded rail pattern is the industry standard for commercial security and IT infrastructure — compatible with equipment from virtually every major manufacturer in the network video recorder and structured cabling space. For deep chassis (2U servers, UPS units over 18 inches), plan on a four-post configuration or add rear support rails; the two-post open-frame design is purpose-built for lighter panel-mount and 1U/2U equipment. Pair with a rack PDU and horizontal cable managers to complete the installation. When specifying racks for surveillance infrastructure, review the rack and enclosure selection guide to match rack depth and post configuration to your heaviest chassis. For government and federal projects requiring TAA documentation, the USA country of origin and UL listing on the RLA19-1245 are verifiable at the SKU level. Middle Atlantic's full rack and enclosure line covers enclosed cabinets, wall-mount frames, and accessory kits if your project scope grows beyond open-frame.

Frequently Asked Questions

Q: Is the Middle Atlantic RLA19-1245 TAA compliant?

A: Yes. The RLA19-1245 is TAA compliant with a Federal Ops Country of Origin of USA, making it eligible for GSA schedules and government contracts requiring TAA compliance.

Q: What is the load capacity of the RLA19-1245?

A: The RLA19-1245 carries a UL-listed load capacity of 400 lbs (181.4 kg). This rating is independently verified by UL, not a self-reported figure.

Q: What rail threading does the RLA19-1245 use?

A: The rack uses standard 12-24 threaded rails, which are compatible with the vast majority of commercial security, AV, and IT equipment. Cage nut adapters are not required for most 19-inch rack-mount hardware.

Q: Is the RLA19-1245 a two-post or four-post rack?

A: It is a two-post open-frame relay rack. The usable depth is 3 inches (7.6 cm). Deep chassis equipment — such as servers or large UPS units — will require a four-post rack or supplemental rear rail support.

Q: How much usable rack height does the RLA19-1245 provide?

A: The RLA19-1245 provides 45 rack units of usable space, corresponding to 78.75 inches (200 cm) of usable height. The overall frame height is 84 inches (213.4 cm).

Q: What is the overall width of the RLA19-1245?

A: Overall width is 20.28 inches (51.5 cm), accommodating standard 19-inch EIA rack equipment with cable routing clearance on both sides.

James Everett

The spec I always check first on an open-frame relay rack is the usable depth — and the RLA19-1245 is straightforward about it: 3 inches. That number tells you exactly what this rack is designed for. Panel-mount gear, 1U switches, patch panels, PDUs, and shallow NVR appliances all rack cleanly here. If your equipment schedule includes anything with a chassis deeper than about 16 inches, spec a four-post frame instead. Know that going in and the RLA19-1245 is the right tool for a large slice of surveillance and AV infrastructure work.

Technical Highlights:

• 400-lb UL Load Capacity: Independent UL listing at 400 lbs isn't just a number — it's the difference between a spec you can put in a submittal package and one you can't. Most equipment rooms running 45U of NVRs, switches, and power gear will land well under that threshold, but the verified rating matters for project documentation.
• 78.75 in Usable Height (45 RU): At 78.75 inches of usable height out of an 84-inch overall frame, almost nothing is lost to frame structure. That's a well-engineered ratio for a full-height relay rack — you get the rack density without paying for unused steel.
• TAA / USA-Made: Federal Ops Country of Origin is USA, TAA-compliant and UL Listed. On a government or education project with Buy American provisions, this clears that requirement at the SKU level — no variance request, no substitution paperwork.

Deployment Considerations:

• At 39 lbs shipping weight, two installers can position this rack without mechanical lift equipment — useful in equipment closets where a pallet jack won't fit. Account for the 20.28-inch overall width in tight IDF rooms; it's wider than the 19-inch equipment it holds.
• The 3-inch usable depth is the critical constraint. Deep 2U chassis, tower-style UPS units, or rackmount servers requiring rear rail support will not be adequately supported by a two-post relay rack configuration. Confirm every piece of equipment in your BOM before specifying this frame.

The RLA19-1245 is the right specification for a commercial surveillance or AV equipment room running a mix of NVRs, managed PoE switches, patch panels, and power distribution — particularly on government, education, or municipal projects where TAA compliance and UL-listed load ratings need to appear on the submittal sheet.