APC by Schneider Electric AR3300SP NetShelter SX 42U Freestanding Rack Enclosure
The APC by Schneider Electric AR3300SP is a 42U freestanding rack enclosure built for dense equipment deployments where structural integrity, cable management headroom, and long-term serviceability matter. With a 600mm-wide, 1200mm-deep footprint and a verified maximum weight capacity of 1,704 kg (3,756 lbs), this enclosure handles fully populated servers, storage arrays, and network gear without compromise. It ships in black powder-coated metal construction and targets data center rows, network closets, and security equipment rooms where you need a rack that stays put under real loads.
Key Features
- 42U Usable Rack Space: Forty-two rack units gives you room to consolidate a full compute stack — servers, patch panels, KVM, and power distribution — into a single enclosure. That depth of space reduces the number of racks on the floor and simplifies cabling runs between units.
- 1,704 kg (3,756 lb) Weight Capacity: Most enterprise racks are rated in the 1,000–1,360 kg range; the AR3300SP's 1,704 kg ceiling means you can fully populate every U with high-density blade chassis or storage JBODs without approaching the structural limit. Headroom here matters for long-term planning as equipment gets replaced with heavier high-density gear.
- 600mm Width × 1200mm Depth: The 600mm width is the standard EIA-310 footprint compatible with virtually all rack-mount equipment. The 1200mm depth is the differentiator — it comfortably accommodates 1U servers with long cable tails, rear-mounted patch panels, and top-of-rack switches without forcing cable bend-radius violations at the back door.
- 1991mm Total Height: At just under 2 meters tall, the AR3300SP fits standard 2.4m data center ceiling heights with clearance for airflow baffles and overhead cable trays. Verify ceiling height before deploying in low-clearance IDF closets.
- Key Lock Included: Physical keyed access on the enclosure prevents unauthorized equipment changes in shared facilities, co-location environments, or multi-tenant spaces where physical security policy requires it. Not a substitute for perimeter access control, but a necessary layer in audited environments.
- Metal Construction: Heavy-gauge steel frame and panels provide the rigidity needed to prevent rack twist under asymmetric loading — a real issue when front-heavy blade chassis are installed without rear counterweights. The structural integrity also means side panels stay flush for proper blanking-panel airflow management.
- Sides Included: Enclosed side panels ship with the unit, giving you a sealed airflow environment out of the box. Hot-aisle/cold-aisle containment strategies work properly only when rack sides are closed — open-frame racks force expensive aftermarket baffling to achieve the same result.
- UL 60950 Certified: UL 60950 certification covers information technology equipment safety standards, confirming the enclosure meets the electrical and mechanical safety requirements for IT environments. Required for deployment in facilities where insurance or compliance auditors check equipment certifications.
- RoHS, REACH, PEP, and EOLI Compliant: RoHS restricts hazardous substances in electrical equipment — relevant for EU deployments and organizations with environmental procurement policies. REACH compliance covers chemical safety for material composition. PEP (Product Environmental Profile) and EOLI (End of Life Instructions) documentation support green procurement scoring in government and enterprise RFP processes.
Integration and Compatibility
The AR3300SP follows the 19-inch EIA-310 rack standard (48.3 cm / 19
