Vertiv 11995 48U Server Rack Enclosure
Overview
The Vertiv 11995 (model 2XPRCN062-103L30TL6 BASIC) is a 48U open-frame-style rack enclosure built for high-density compute and network deployments where airflow and structural integrity are non-negotiable. At 4,000 lbs static load capacity and 800mm wide by 1,200mm deep, this enclosure is engineered for serious data center and equipment room builds — not light-duty closet installs. If you're planning a dense server row, network aggregation stack, or mixed compute/storage bay, the 11995 delivers the structural foundation and airflow characteristics to support it without compromise.
Vertiv rack infrastructure is purpose-built for environments where uptime matters and equipment is expensive. Browse the Vertiv rack and enclosure catalog to see the full line of complementary enclosures, containment systems, and power distribution units.
Key Features
- 4,000 lb Static Load Capacity: This enclosure handles the weight of fully populated blade chassis, dense storage arrays, and stacked UPS units without structural deflection. For context, a full rack of 1U servers plus networking gear rarely exceeds 2,500 lbs — the 11995 gives you meaningful headroom for future expansion or high-density GPU nodes.
- 2,500 lb Dynamic Load Capacity: Rated for 2,500 lbs under dynamic (rolling/transport) conditions, so you can move a fully loaded rack to its final position on the floor without partial de-population. That matters in live data center environments where downtime for de-rack/re-rack is expensive.
- 77% Front and Rear Door Perforation: Both front and rear doors are 77% perforated — high enough to support hot-aisle/cold-aisle containment strategies and meet the airflow requirements of high-wattage 1U/2U servers. Dense enclosures with poor door perforation create hot spots at the top of the rack; 77% mitigates that risk substantially. Pair with a precision cooling unit for maximum thermal management.
- 48U Height: Forty-eight rack units is the standard for full-height data center enclosures, giving you room to deploy full compute stacks — servers, patch panels, KVM switches, and PDUs — in a single footprint. Compared to 42U alternatives, the additional 6U can be the difference between fitting your UPS inside the rack or adding a separate enclosure.
- 800mm Width: The 800mm width (vs. the narrower 600mm standard) accommodates side-by-side cable management, wider blade chassis, and rear-mounted PDUs without forcing a cable routing compromise. If your cabling strategy relies on vertical cable managers or side-mounted trays, the 800mm form factor is the correct choice.
- 1,200mm Depth: At 1,200mm deep, this enclosure supports the longest server chassis on the market — including deep 4U storage servers and some UPS units that won't fit in 1,000mm or 1,070mm enclosures. Verify your deepest piece of equipment's chassis length before ordering a shallower alternative.
- M6 Cage Nut Mounting System: Ships with M6 cage nuts, washers, and screws — the industry-standard mounting system compatible with virtually all 19-inch rackmount equipment. No proprietary tooling, no adapters needed for standard server and networking hardware.
- 275 lb Rail Load Rating: Fixed mounting rails support up to 275 lbs per rail, sufficient for most 2U and 4U servers. Note the separate depth-adjustable support rail rating below — plan your rail selection based on your heaviest individual chassis weight.
- 110 lb Depth-Adjustable Support Rail Capacity: The sliding depth-adjustable support rails are rated at 110 lbs — adequate for most 1U rack servers and networking gear, but worth noting if you're deploying dense storage nodes or heavy appliances that approach or exceed that threshold. Use fixed rails for heavier equipment.
Integration and Compatibility
The 11995 follows standard 19-inch EIA-310 rack unit spacing, making it compatible with server, storage, networking, and power distribution equipment from any major vendor. The M6 cage nut system is universal — no vendor lock-in, no adapter kits required for standard rackmount hardware. The 800x1200mm footprint fits standard raised-floor tile grids and is compatible with most hot-aisle/cold-aisle containment systems designed for 800mm-wide enclosures. Verify containment system rail and frame dimensions with your containment vendor before ordering blanking panels or brush strips sized for a different width.
For full rack enclosure selection guidance — including load planning, airflow design, and footprint considerations — consult the infrastructure planning resources available through the product category.
Frequently Asked Questions
Q: What is the maximum static load capacity of the Vertiv 11995?
A: The 11995 is rated for a 4,000 lb static load — sufficient for fully populated high-density server, storage, and UPS configurations in a single 48U enclosure.
Q: What is the difference between the static and dynamic load ratings on the 11995?
A: The static load rating (4,000 lbs) applies when the rack is in its installed, stationary position. The dynamic rating (2,500 lbs) applies during rolling transport — for example, when moving the populated rack to its final floor position. If your loaded rack exceeds 2,500 lbs, partial de-population before moving is recommended.
Q: What mounting hardware is included with the 11995?
A: The 11995 ships with M6 cage nuts, washers, and screws — the standard 19-inch rackmount hardware compatible with virtually all server and networking equipment.
Q: What is the door perforation percentage, and does it support hot-aisle/cold-aisle containment?
A: Both front and rear doors are 77% perforated. This airflow percentage is well-suited for hot-aisle/cold-aisle containment strategies and supports the thermal requirements of high-wattage compute equipment.
Q: What are the external dimensions of the Vertiv 11995?
A: The 11995 is 800mm wide and 1,200mm deep. Height corresponds to a 48U enclosure. Verify your floor tile grid and aisle spacing against these dimensions before ordering.
Q: What is the per-rail load rating for the 11995?
A: Fixed mounting rails are rated at 275 lbs. Depth-adjustable support rails are rated at 110 lbs. Select your rail type based on the weight of your heaviest individual chassis.
The Vertiv 11995 is one of the few 48U enclosures I'd recommend for a high-density compute row without caveat — the 4,000 lb static load rating gives you real headroom for GPU nodes, dense storage arrays, or stacked UPS configurations that would stress a lesser frame. The 1,200mm depth is the other spec that matters most here: it's the difference between fitting a deep 4U storage server cleanly versus fighting clearance issues at the rear door.
Technical Highlights:
- 77% Door Perforation (Front and Rear): Both doors hit 77% open area — high enough that you won't be the bottleneck in a hot-aisle/cold-aisle setup. Most containment issues I've seen come from under-perforated doors, not inadequate CRAC capacity.
- 4,000 lb Static / 2,500 lb Dynamic Load: The 1,500 lb gap between static and dynamic ratings is intentional — account for it during move-in. At 2,500 lbs dynamic, you have room to roll a fully populated standard-density rack, but a blade-heavy or storage-heavy build may need partial de-pop before moving.
- 110 lb Depth-Adjustable Rail Limit: The adjustable support rails are rated at 110 lbs per rail — adequate for most 1U gear, but if you're deploying 2U or 4U nodes above that threshold, spec fixed rails instead. This is the most common oversight I see on dense storage builds.
Deployment Considerations:
- The 800mm width requires verification against your raised-floor tile grid and any hot-aisle containment system you're integrating — 800mm containment hardware is common but not universal, and mismatches create bypass airflow that defeats the containment strategy.
- M6 cage nut hardware is included, but verify that your heaviest chassis uses M6 — some older or specialized equipment requires M5 or 10-32 UNC threads that require separate cage nut sets.
The 11995 is the right enclosure for a primary compute row in a purpose-built data center or large equipment room where load capacity and airflow are the design constraints — particularly deployments running dense 2U servers, blade systems, or mixed compute/storage configurations that push the limits of a standard 42U frame.
