Rack enclosure APC by Schneider Electric NetShelter SX AR3140B2 — 42U networking rack, with side panels, vertical cable management, black

APC by Schneider Electric NetShelter SX AR3140B2 is a 42U rack enclosure designed for data centers, server rooms and network closets. The NetShelter SX Gen2 redesign offers larger load capacity, improved airflow and more internal space for high-density computing while supporting standard 19" equipment. The enclosure includes removable side panels, integrated vertical cable management and ships in recyclable, protective packaging.

Advantages

The redesigned NetShelter SX provides increased load capacity and optimized ventilation with 80% perforated doors to support high-powered servers. Built from all-steel construction, it delivers long-term durability and security for installed equipment. Integrated vertical cable managers and a 270° (180° bayed) door opening simplify installation and service access, making cable routing and hardware changes faster and safer.

Suitable for

• Data centers and colocation facilities
• Enterprise server rooms and network closets
• High-density computing and AI workloads
• Telecom and network equipment installations
• Customer-facing or managed hosting environments

When it may not be suitable

The NetShelter SX is designed for standard 19" equipment and larger installations; it may be oversized for small desktop or home office setups where a compact cabinet would be more appropriate. Environments with strict size constraints or where non-standard rack widths are required should verify dimensions and clearances before purchase.

Key specifications

• Rack height: 42U
• External dimensions (approximate): 1991 mm H × 750 mm W × 1070 mm D
• Construction: all-steel frame and panels
• Front/rear door design: 80% perforated for improved airflow
• Door opening: 270° single-door (180° in bayed configuration)
• Cable management: integrated vertical cable managers
• Equipment compatibility: supports standard 19" rack-mount devices

How to use

Position the enclosure on a level floor and ensure adequate room for door swings and airflow. Remove side panels to install rails and mount 19" equipment according to device instructions, using appropriate cage nuts or mounting hardware. Route power and network cabling through the vertical cable managers to maintain organization and airflow. For bayed installations, align adjacent enclosures and confirm the 180° door clearance as needed. Follow local codes and safety guidelines when grounding and securing the rack.

What to consider before purchase

• Confirm internal depth and width meet the requirements of your rack-mount equipment.
• Check floor loading capacity and site clearance for a 42U full-size rack.
• Plan for cooling and airflow in the room to take advantage of perforated doors.
• Consider accessory compatibility such as PDUs, shelves, rails and castors.

Usage recommendations

For optimal performance, install heavy equipment at the bottom of the rack, maintain clear airflow paths through the perforated doors, and use the integrated vertical cable managers to separate power and data cabling. Regularly inspect fasteners, rails and grounding connections to ensure long-term reliability.