APC by Schneider Electric AR3140 42U Networking Rack Enclosure
Overview
The APC by Schneider Electric AR3140 is a 42U, 750mm-wide by 1070mm-deep floor-standing rack enclosure built for high-density networking and data center deployments where structural integrity, cable management, and airflow discipline are non-negotiable. At 343.81 lb empty and rated for a 2,254.73 lb dynamic load and 3,006.31 lb static load, this cabinet is engineered to house fully populated switch stacks, patch panels, and active networking gear without flexing or shifting. It ships complete with casters, leveling feet, vertical cable managers, and side panels — so it is deployment-ready out of the box rather than requiring a separate accessory order. For buyers evaluating the broader APC by Schneider Electric catalog, the AR3140 sits within the NetShelter SX product line, which is APC's primary commercial-grade rack enclosure family for networking environments.
Key Features
- 42U Rack Height: 42U of usable space in a 78.4-inch overall height means you can stack a full complement of 1U switches, 2U firewalls, patch panels, and cable management units without compromising headroom. Most enterprise networking deployments fit comfortably within this height; if you need more density in less floor space, look at wider or deeper variants, but 42U covers the vast majority of networking rack enclosure deployments.
- 750mm Interior Width: The 750mm (29.5-inch overall) width accommodates standard 19-inch rack-mount equipment while providing lateral clearance for thicker cabling bundles on either side of the equipment rails. This is the wider of the two standard SX widths — if you are running dense fiber or copper patch fields, the extra width over a 600mm cabinet makes a measurable difference in cable routing.
- 1070mm Depth: At 1070mm (42.1 inches overall), the AR3140 handles deep networking gear — next-generation switches with rear-to-front airflow, large UPS units, and high-port-count patch panels — without forcing cable bends at the rear door. Shallow-depth gear (under 600mm) will require cable management arms or filler panels to maintain airflow integrity.
- 2,254.73 lb Dynamic Load Capacity: Dynamic capacity measures what the rack can support while on wheels and moving — the more demanding of the two ratings. At over a ton of dynamic capacity, the AR3140 can handle a fully populated cabinet that is being repositioned across a raised floor without structural risk. This matters during initial deployment and moves-adds-changes.
- 3,006.31 lb Static Load Capacity: Once leveled on the adjustable feet, the cabinet supports over 3,000 lb — enough margin for high-density server and networking gear combinations. Use the static rating for permanent installed configurations; the dynamic rating governs any time the casters are engaged.
- Included Vertical Cable Managers: Vertical cable managers ship in the box, not as an upsell. For integrators building out structured cabling runs to patch panels and switch stacks, having the managers pre-included eliminates a common RFQ line-item omission and ensures the cable routing infrastructure is in place before gear goes in the rack. Pair this with a patch panel selection matched to your port count.
- Casters and Leveling Feet Both Included: The enclosure ships with both casters (for positioning) and leveling feet (for stabilization). You do not need to choose between mobility and stability at order time — both are in the box. Lock the casters before deploying in a production environment; the feet provide the required stability for high-load static configurations.
- TAA and BAA COTS Compliance: The AR3140 carries TAA (Trade Agreements Act) and BAA COTS (Buy American Act, Commercial Off-The-Shelf) designations. For federal agency deployments, GSA schedule purchases, or any project with domestic sourcing requirements, this compliance eliminates a procurement exception that would otherwise require contracting officer approval. Verify specific contract vehicle requirements with your procurement officer, but the designations are part of the published product identity for this SKU.
- Black Powder-Coat Finish, Floor-Standing Form Factor: The standard black finish integrates cleanly into colocation, enterprise IT rooms, and security operations centers without requiring custom finishing. Floor-standing placement means no wall-mounting hardware or structural engineering review — position, level, and populate.
Integration and Compatibility
The AR3140 accepts any standard 19-inch rack-mount equipment across its 42U height. The 1070mm depth accommodates the vast majority of commercial networking hardware, including deep-form-factor core switches and chassis-based equipment. For power distribution inside the enclosure, APC's own rack-mount PDUs (0U and 1U) are designed to mount within NetShelter SX cabinets using the side-rail toolless attachment points — reducing the need for additional hardware. If your deployment includes a UPS on the rack, verify the UPS form factor and weight against the dynamic load rating before committing the enclosure to a specific floor position. For data center environments requiring hot-aisle/cold-aisle containment, the included side panels are a prerequisite; ensure containment curtains or chimney kits are specified as separate line items if the project requires them. The AR3140 is compatible with standard APC rack accessories including blanking panels, horizontal cable managers, and tool-less rail kits for server equipment. Integrators deploying PoE switches with high power budgets should account for the additional cable mass when planning the vertical cable manager load.
Frequently Asked Questions
Q: Is the AR3140 TAA and BAA compliant?
A: Yes. The AR3140 carries both TAA (Trade Agreements Act) and BAA COTS (Buy American Act, Commercial Off-The-Shelf) designations, making it eligible for federal procurement vehicles and projects with domestic sourcing requirements. Confirm specific contract vehicle applicability with your contracting officer.
Q: What is the maximum load capacity of the AR3140?
A: The AR3140 supports a 2,254.73 lb dynamic load capacity (on casters, while moving) and a 3,006.31 lb static load capacity (on leveling feet, in fixed position). For fully populated production deployments, always use the leveling feet and reference the static rating.
Q: Does the AR3140 ship with cable managers and side panels?
A: Yes. The AR3140 ships complete with vertical cable managers and side panels included in the box, along with casters and leveling feet. No separate accessory order is required to begin deployment.
Q: What is the warranty on the AR3140?
A: The AR3140 carries a 5-year manufacturer warranty.
Q: What rack width does the AR3140 accommodate?
A: The AR3140 accommodates standard 19-inch rack-mount equipment. The cabinet's overall exterior width is 29.5 inches (750mm), providing lateral clearance for cable routing on both sides of the equipment rails.
Q: Can the AR3140 be used in a hot-aisle/cold-aisle containment setup?
A: The included side panels support hot-aisle/cold-aisle configurations. Containment chimney kits or curtain systems are not included and must be specified separately, but the enclosure is physically compatible with standard APC containment accessories designed for the NetShelter SX line.
The AR3140's 3,006 lb static load rating is the spec I point to first when a project involves high-density switching or stacked UPS gear — it is the kind of headroom that lets you populate the cabinet to its physical limits without revisiting the structural calculation. For federal or publicly funded projects, the TAA and BAA COTS designations on this SKU are load-bearing for procurement; that compliance is baked into the AR3140's product identity, not a special-order variant.
Technical Highlights:
- 42U x 750mm x 1070mm Envelope: The 750mm width provides the lateral clearance needed for dense patch fields and cable bundles; the 1070mm depth handles full-depth core switches and chassis gear that a 900mm cabinet cannot close around cleanly.
- Dynamic vs. Static Load Ratings: 2,254 lb dynamic (casters engaged) and 3,006 lb static (feet down) — the delta matters during moves. Never reposition a fully populated cabinet on casters without confirming total gear weight is under the 2,254 lb dynamic ceiling.
- Included Accessories: Vertical cable managers, side panels, casters, and leveling feet all ship in box. In competitive bids where accessory costs inflate the line-item total, this inclusion can shift the effective cost meaningfully versus configurations that require separate cable management orders.
Deployment Considerations:
- For raised-floor data centers, confirm the caster wheel type is compatible with your floor tile grid before positioning — the enclosure's 343.81 lb empty weight plus any staged gear can exceed tile load ratings in older facilities.
- The 1070mm depth is the most common gotcha on retrofit projects: measure the clear path from loading dock to the final rack position, including door widths and corridor turns, before delivery. At 42.1 inches deep, this cabinet does not navigate tight 36-inch doorframes without removing the doors from the enclosure first.
The AR3140 is the right specification for enterprise networking rooms, colocation suites, and federal IT infrastructure projects requiring TAA/BAA COTS compliance — particularly where a mix of deep networking gear and structured cabling demands both the 1070mm depth and the cable management infrastructure that ships with this enclosure.
