APC by Schneider Electric AR3106SP NetShelter SX 18U Rack Enclosure
Overview
The APC by Schneider Electric AR3106SP is an 18U freestanding closed rack enclosure in the NetShelter SX family — a well-established network rack enclosure line built for data closets, security head-end rooms, and distributed IT deployments where airflow discipline and structural integrity are non-negotiable. At 600 mm wide and 1070 mm deep with a 409 kg maximum load rating, the AR3106SP handles dense NVR, server, and switching hardware without compromise. The closed-frame steel construction with IP20 protection keeps fingers and tools out of live components while still permitting the forced-air cooling that rack-dense environments demand.
For security integrators building centralized video surveillance infrastructure — stacking NVRs, PoE switches, and UPS units in a single enclosure — the AR3106SP delivers the right balance of depth, access flexibility, and physical security in a footprint that fits standard building closets.
Key Features
- 18U Rack Capacity: Eighteen rack units of usable space gives you room to stack a multi-channel NVR, a managed PoE switch, a patch panel, and a rack-mount UPS without the tight-packing compromises that plague smaller 12U enclosures. If you're regularly filling 14–16U, step up to a 24U or 42U variant in the NetShelter SX family before committing.
- 409 kg Maximum Load Rating: That's roughly 900 lbs — more than adequate for any realistic security head-end build. Dense UPS units and battery shelves are the load drivers to watch; even a fully loaded UPS stack won't approach this limit, so you're not engineering around the enclosure.
- 600 mm × 1070 mm Footprint (W × D): The 1070 mm depth is the spec to confirm before ordering. It comfortably fits extended-depth 2U NVRs, 1U servers with rear cable management arms, and full-length patch panels — but verify your building closet depth (including door swing clearance) before delivery. Some IT closets in older buildings max out at 900 mm usable depth.
- Perforated Front and Rear Doors: Perforated steel doors allow natural and forced airflow through the rack without requiring open-frame compromises, keeping the enclosure IP20-rated while supporting proper thermal management for heat-generating network and storage equipment.
- Fully Removable Front, Rear, and Side Panels: All access panels — front door, back door, and both side panels — are removable. That means a two-person install team can pull an NVR or a switch from any angle without tilting the entire rack. Side panel key locks add a physical deterrent against casual tampering in shared spaces like telecom closets.
- Adjustable Mounting Rails: The internal mounting rails adjust to accommodate equipment of varying depths, eliminating the adapters and spacers that add cost and complexity in mixed-vendor deployments. Confirmed adjustable-rail support is the detail that separates genuine enterprise rack infrastructure from commodity shelving.
- Cable Management Built In: Factory-integrated cable management routing keeps power and data runs organized from day one — critical in security head-ends where a single mis-seated cable can take down a camera group and cost hours of troubleshooting on a service call.
- Castor Wheels + Adjustable Feet: Castor wheels let you roll the loaded rack into position, then drop the leveling feet for stability once placed. For staged deployments — where the rack is built off-site and wheeled into a finished space — this is a meaningful time-saver compared to static-foot enclosures.
- Key Lock on Enclosure and Side Panels: Dual key-lock points (main enclosure + side panels) support physical access control requirements in compliance-sensitive deployments. If your site requires logged physical access, pair this with a data center access control reader on the room, not just the rack.
- IP20 Ingress Protection: IP20 means the enclosure blocks fingers and objects larger than 12.5 mm from reaching internal components — appropriate for indoor telecom closets, server rooms, and security equipment rooms. This is not rated for dusty industrial environments or any form of moisture exposure; those applications need a higher IP-rated wall-mount or outdoor enclosure.
- UL 2416 and UL 60950-1 Listed, REACH Compliant: UL 2416 is the specific safety standard for information technology and telecommunications enclosures — confirming this isn't a commodity import rack. REACH compliance matters for enterprise procurement teams with EU supply-chain reporting obligations. Both certifications support specification in commercial and government projects.
Integration & Compatibility
The AR3106SP integrates with the broader APC by Schneider Electric NetShelter SX ecosystem, accepting standard APC rack-mount power distribution units (PDUs), blanking panels, and cable management accessories that share the SX mounting pattern. The 600 mm width is the standard EIA-310 19-inch rack form factor, so any 19-inch rackmount device — NVRs, switches, servers, patch panels, KVM units — mounts without adapters. The 1070 mm depth accommodates APC's extended-depth PDUs and most zero-U mounting accessories without occupying usable rack units.
For surveillance deployments, this enclosure is a natural pairing with rack-mount network video recorders, managed PoE switches, and rack-mount UPS units. The adjustable rails and cable management infrastructure support mixed-depth equipment common in integrated security head-ends. If you're building a structured cabling head-end, verify that your patch panel vendor's horizontal cable managers fit the 600 mm interior width before finalizing the BOM.
Frequently Asked Questions
Q: What is the maximum weight the AR3106SP can support?
A: The AR3106SP is rated for a maximum load of 409 kg (approximately 902 lbs). This covers virtually any realistic combination of NVRs, switches, UPS units, and servers in an 18U configuration.
Q: Are the front and rear doors removable on the AR3106SP?
A: Yes. Both the front door and rear door are fully removable, as are both side panels. This simplifies installation and equipment service, particularly in tight closet deployments where swing clearance is limited.
Q: What is the IP rating on the AR3106SP?
A: The AR3106SP carries an IP20 rating, which protects against solid objects larger than 12.5 mm (finger-safe) but provides no dust or moisture protection. It is designed for climate-controlled indoor environments such as server rooms, telecom closets, and security equipment rooms.
Q: What certifications does the AR3106SP carry?
A: The AR3106SP is UL 2416 listed (IT and telecom enclosure safety standard), UL 60950-1 listed, and REACH compliant. These certifications support use in commercial, enterprise, and government project specifications.
Q: Does the AR3106SP have locking doors and side panels?
A: Yes. The enclosure includes a key lock on the main access points and a separate key lock on the side panels, providing two-point physical access control appropriate for shared-closet or multi-tenant deployments.
Q: Is the AR3106SP compatible with standard 19-inch rackmount equipment?
A: Yes. The 600 mm wide frame accommodates standard EIA-310 19-inch rackmount equipment without adapters. The adjustable mounting rails support varying equipment depths within the 1070 mm internal depth envelope.
The AR3106SP sits in a practical sweet spot for security head-end builds: the 1070 mm depth handles real-world NVR and UPS combinations without the wasted space of a 42U cabinet, and the 409 kg load rating means you're not engineering around the enclosure even with a dense battery-backed configuration. I spec this model when an integrator needs a structured, lockable enclosure for a mid-size surveillance deployment — typically 8 to 16 cameras with a standalone NVR, a managed PoE switch, and a rack-mount UPS — that will live in a shared building closet rather than a dedicated server room.
Technical Highlights:
- 409 kg Load Capacity: Handles a fully populated 18U build — including heavy rack-mount UPS units with extended battery modules — without structural concern. Size the UPS to the load, not to the rack's weight limit.
- UL 2416 Listing: Confirms the enclosure meets the specific safety standard for IT and telecom cabinets, which matters when you're submitting specifications to a facility manager or AHJ who will ask for the listing documentation.
- Dual Key Locks (Enclosure + Side Panels): Two independent lock points mean a compromised side-panel key doesn't also expose the front-door access — a small but real distinction in multi-tenant spaces where keys get copied.
Deployment Considerations:
- Confirm the building closet depth before delivery: 1070 mm rack depth plus rear door swing requires roughly 1400–1500 mm of total closet depth from wall to wall, which older telecom closets frequently don't have.
- IP20 is finger-safe indoors only — do not specify this enclosure for dusty, damp, or industrial environments; those applications need a sealed or NEMA-rated enclosure instead.
For a 12–24 camera enterprise surveillance head-end installed in a finished commercial building's telecom closet — where you need structured cable management, physical access deterrence, and documented safety certifications for the facility team — the AR3106SP is a well-matched, properly specified choice.
