APC by Schneider Electric AR3305 45U Server Rack Enclosure
The AR3305 is APC's NetShelter SX 45U server rack enclosure built for data centers, wiring closets, and server rooms where density, cable management, and structural integrity are non-negotiable. At 600mm wide and 1,200mm deep, it gives you the horizontal and fore-aft clearance to house high-density compute, storage, and network gear without forcing compromises on airflow or cable routing. This is a floor-standing, non-rack-mountable cabinet — a permanent infrastructure fixture, not a portable solution.
Key Features
- 45U Rack Height: Forty-five rack units gives you enough vertical real estate to consolidate a full server stack, top-of-rack switching, patch panels, and power distribution into a single enclosure — reducing floor footprint versus spreading gear across multiple shorter cabinets.
- 600mm Wide x 1,200mm Deep Interior: The 600mm width accommodates standard 19-inch rack equipment with room on either side for vertical cable management. The 1,200mm depth handles full-depth servers (most enterprise 2U/4U compute nodes and storage arrays run 700–900mm deep), leaving clearance at the rear for PDUs and cable egress without stacking gear at an angle.
- 2,250 lb Dynamic Load Capacity: Dynamic load rating — what the enclosure can carry while rolling on its casters — sits at 2,250 lbs (1,020.6 kg). That is more than enough for a fully loaded compute and storage build. If you are staging and repositioning fully dressed racks on a raised floor, this rating is the one that matters.
- 3,750 lb Static Load Capacity: Once the enclosure is in its final position and off its casters, static load climbs to 3,750 lbs (1,701 kg). For a 45U cabinet fully loaded with dense storage nodes, this headroom means you are not engineering around the rack itself.
- 41.3-Inch Maximum Mounting Depth: Usable mounting depth reaches 41.3 inches (104.8 cm), which is the distance from the front mounting rail to the rear mounting rail. Standard 19-inch rack equipment mounts at depths ranging from 7.5 inches (the 190.5 mm minimum, suitable for patch panels and shallow switches) all the way to 41.3 inches for extended-depth storage arrays and UPS units.
- 7.50-Inch Minimum Mounting Depth: The adjustable rails accommodate gear as shallow as 7.5 inches — useful for 1U patch panels, KVM switches, and console servers that would otherwise leave dead space in a fixed-rail design.
- Adjustable 19-Inch Rail Width: All mounting hardware is sized to the universal 19-inch EIA-310 standard, ensuring compatibility with virtually every rack-mount server, switch, storage array, UPS, and KVM on the market without requiring adapter kits.
- Black Finish: The all-black enclosure blends into standard data center and security operations center aesthetics. For deployments where visual consistency across rows of cabinets matters — co-location sites, enterprise NOCs — this is the expected finish.
- Enclosure with Sides Included: Side panels ship with the unit, providing enclosed airflow containment and physical security for the sides of the cabinet. This matters in open-floor deployments where side access would otherwise expose gear to foot traffic or incidental contact.
Integration & Compatibility
The AR3305 is designed around the 19-inch EIA-310-D rack standard, which means it integrates directly with the full ecosystem of APC by Schneider Electric rack power distribution units, cable management arms, blanking panels, and InfraStruXure accessories. As a server rack enclosure, it pairs naturally with APC's NetShelter SX accessory line — roof-mount fans, side-mount fan panels, in-row cooling attachments, and cable management panels all designed to the same 600mm-wide form factor.
For security and surveillance integrations, the AR3305 works equally well as the housing for network video recorders, video management servers, PoE switch stacks, and storage arrays in a network video surveillance head-end room. Any 19-inch rack-mount device installs without modification. Refer to a rack and power planning guide to size PDU amperage and UPS capacity before final deployment.
The adjustable mounting depth range (7.5 to 41.3 inches) means the AR3305 does not require a depth-matched equipment selection — rails slide to meet the gear, not the other way around. Cable management accessories and rack power distribution units from APC's SX line mount directly inside without adapter plates.
Frequently Asked Questions
Q: What is the usable mounting depth of the AR3305?
A: The AR3305 supports a minimum mounting depth of 7.50 inches (19.05 cm) and a maximum mounting depth of 41.3 inches (104.8 cm). The front-to-rear rails are adjustable within this range to accommodate everything from shallow patch panels to full-depth enterprise servers and storage arrays.
Q: How much weight can the AR3305 hold?
A: The AR3305 has a dynamic load capacity of 2,250 lbs (1,020.6 kg) — meaning it can carry that load while being moved on its casters — and a static load capacity of 3,750 lbs (1,701 kg) once it is in its final position. Both ratings are generous for a fully populated 45U enclosure.
Q: Does the AR3305 include side panels?
A: Yes. The AR3305 ships as an enclosure with sides, so side panels are included. This provides enclosed airflow management and physical security without purchasing sides separately.
Q: Is the AR3305 compatible with standard 19-inch rack equipment?
A: Yes. The AR3305 uses the universal 19-inch EIA-310-D rack standard. Any rack-mount device — servers, switches, storage arrays, UPS units, KVM switches, patch panels — installs without adapter hardware.
Q: Can the AR3305 be rack-mounted inside another enclosure?
A: No. The AR3305 is a floor-standing enclosure, not a rack-mountable unit. It is designed to sit on the floor as a standalone cabinet. It is not mountable inside another rack.
Q: What is the rack height of the AR3305 in rack units?
A: The AR3305 provides 45U of rack space — 45 rack units of usable mounting height, which is one of the tallest standard configurations available and appropriate for high-density server, storage, or AV/security head-end builds.
The AR3305 is one of those enclosures I recommend whenever a project spec calls for consolidating a full surveillance head-end — NVR stacks, PoE switch tiers, storage arrays, and patch infrastructure — into a single footprint. The 45U height and 1,200mm depth cover virtually every combination of full-depth gear without forcing a second cabinet, and the 2,250 lb dynamic load rating means you can move it fully dressed across a raised floor without pulling equipment.
Technical Highlights:
- 41.3-Inch Max Mounting Depth: Rails adjust from 7.5 to 41.3 inches — that range handles shallow 1U patch panels at the front and deep 4U storage nodes at the rear without swapping hardware.
- 3,750 lb Static Load: Once the AR3305 is in position, the static rating at 3,750 lbs gives you genuine margin. A fully populated 45U with dense storage and compute typically runs 1,200–1,800 lbs — you are nowhere near the ceiling.
- 600mm Width with Sides Included: The enclosed 600mm profile keeps airflow contained on a standard hot-aisle/cold-aisle floor without requiring aftermarket side blanking panels — they ship with the unit.
Deployment Considerations:
- The 1,200mm depth requires floor space planning before installation — confirm your MDF or server room can accommodate the full footprint including rear cable egress clearance (typically add 300–400mm behind the cabinet).
- The AR3305 is non-rack-mountable and floor-standing only — if your deployment requires wall-mount or two-post open-frame configurations, this is not the right enclosure; look at the NetShelter WX or two-post open-frame alternatives in the same line.
For a surveillance operations center or enterprise MDF build where you are consolidating NVRs, managed PoE switches, a UPS, and patch infrastructure into one location, the AR3305 delivers the depth, load capacity, and enclosed form factor to do that cleanly without a second cabinet or a custom rack build.
