APC by Schneider Electric AR3100X877 42U NetShelter SX Server Rack Enclosure
Overview
The APC by Schneider Electric AR3100X877 is a 42U free-standing server rack enclosure built for structured data center deployments. At 600mm wide by 1070mm deep, it gives you enough interior room to house full-depth servers, patch panels, and cable management trays without the forced compromises of a shallower cabinet. The steel construction, lever handle lock, and side panels combine to deliver a complete, access-controlled enclosure ready for 19-inch equipment from day one.
Key Features
- 42U Capacity: 42 rack units of usable space means you can fully populate a standard server, switch, and patch-panel stack in a single enclosure — fewer cabinets, simpler cable runs, lower floor space cost in metered data center environments.
- 600mm Width: The 600mm external footprint fits the standard data center aisle grid. If your raised-floor tiles are on a 24-inch (610mm) grid, this cabinet drops in without aisle reconfiguration.
- 1070mm Depth: At over 42 inches deep, this enclosure accommodates full-depth 1U and 2U rack servers without door interference — important when mixing compute nodes with cable-heavy storage or networking gear at the rear.
- Perforated Front Door: Front-to-rear airflow architecture starts at the door. The perforated steel panel allows cold aisle air to enter with minimal resistance, supporting conventional hot/cold aisle containment without requiring blanking panels on every unused unit to maintain pressure.
- Front-to-Rear Airflow Design: Equipment exhausts to the rear, aligning with hot-aisle containment strategy. If you are retrofitting into an existing data center with an established airflow architecture, this cabinet matches the dominant industry standard and requires no airflow workarounds.
- Square-Punched Rail Style: Square-hole rails accept standard cage nuts, making it compatible with virtually all 19-inch rackmount equipment. You are not locked into proprietary mounting hardware, which matters when mixing vendors across a build-out.
- 19-Inch Mounting Width: Full EIA-310 compliance for standard rack equipment. Patch panels, UPS units, KVM switches, and 1U/2U servers all mount without adapters.
- Steel Construction with Lever Handle Lock: The steel body and lockable lever handle provide physical security without requiring a separate lock kit. Access is controlled at the door, suitable for shared data center colocation environments or server rooms with multiple personnel.
- Includes Side Panels: Shipped with side panels installed, which completes the enclosure for airflow containment and physical security — no separate side panel order needed before commissioning.
Integration and Compatibility
The AR3100X877 is designed for data center use with standard 19-inch EIA-310 equipment. Square-punch rails accept cage nuts for all major server, networking, and storage vendors. The enclosure integrates with APC's broader NetShelter accessory ecosystem — cable management arms, blanking panels, power distribution units, and roof fan trays are all available as add-ons within the same product family. If you are building a hot/cold aisle containment row, check aisle containment kit compatibility against the 600mm width before ordering row-end doors or top panels.
Frequently Asked Questions
Q: What rail style does the AR3100X877 use?
A: The AR3100X877 uses square-punched rails, which accept standard cage nuts and are compatible with virtually all 19-inch EIA-310 rackmount equipment.
Q: Does the AR3100X877 ship with side panels?
A: Yes, the AR3100X877 includes side panels, delivering a complete enclosed cabinet ready for deployment without a separate side panel purchase.
Q: What is the external footprint of the AR3100X877?
A: The enclosure is 600mm wide by 1070mm deep, fitting standard 600mm data center floor grid layouts.
Q: Is the AR3100X877 compatible with APC power distribution units and accessories?
A: Yes, the AR3100X877 is part of the NetShelter SX family and is compatible with APC rack PDUs, cable management accessories, and blanking panels designed for the NetShelter SX line.
Q: What airflow direction does the AR3100X877 support?
A: The AR3100X877 is designed for front-to-rear airflow, aligning with conventional hot/cold aisle containment architectures used in most commercial data centers.
The AR3100X877 is the enclosure I reach for when a deployment needs reliable 42U capacity in a standard 600mm footprint without any compromise on depth — the 1070mm interior clears full-depth rack servers with room for rear cable management, which is the spec that gets ignored until it causes problems on installation day.
Technical Highlights:
- 42U / 1070mm Depth: Full-depth server compatibility without rear door interference — critical when populating with 900mm-depth compute nodes plus cabling behind them.
- Square-Punch Rails: Cage-nut compatibility across all major server and networking vendors means no adapters and no vendor lock-in when sourcing equipment across a multi-year build-out.
- Perforated Door + Front-to-Rear Airflow: Aligns with hot/cold aisle containment out of the box — no blanking panel workarounds needed to maintain cold aisle pressure when the cabinet is partially populated.
Deployment Considerations:
- Verify your raised-floor tile grid against the 600mm width before ordering row-end containment accessories — some older facilities run 610mm grids that require minor aisle adjustment.
- The lever handle lock provides basic physical access control, but colocation environments with stricter key-management policies may want to evaluate an optional electronic lock overlay compatible with the NetShelter SX frame.
The AR3100X877 is the right call for a structured commercial data center row build where you need a depth-generous, airflow-aligned 42U cabinet that drops into an existing 600mm floor grid and accepts the full range of NetShelter SX accessories without custom fabrication.
