Vertiv GL36N12-24-B-AC00 19U NEMA 12 Wall-Mount Rack Enclosure
Overview
The Vertiv GL36N12-24-B-AC00 is a NEMA 12-rated wall-mount enclosure built around a 19-inch EIA rack frame in a 24-inch depth configuration. NEMA 12 certification means the enclosure is sealed against dust ingress and dripping or splashing water — appropriate for industrial floors, mechanical rooms, and telecom closets where open racks would accumulate contamination over time. This isn't an outdoor enclosure (NEMA 12 does not cover outdoor or washdown environments), but it is the correct pick for indoor industrial zones where a standard open frame or two-post rack is inadequate.
The GL36N12-24-B-AC00 (often searched as GL36N12 24 B AC00) ships as the base wall-mount chassis and is compatible with Vertiv's range of thermal management options, giving integrators the flexibility to specify cooling capacity after deployment conditions are confirmed rather than locking into a fixed thermal solution at purchase.
Key Features
- NEMA 12 Enclosure Rating: Dust-tight and drip-proof construction keeps contaminants off active equipment — critical in manufacturing, warehousing, or utility spaces where particulate levels would degrade open-frame rack gear over months of operation.
- 19U Rack Capacity (36" Height): The GL36N12-24-B-AC00 offers 19U of usable rack space in its 36-inch height configuration, accommodating patch panels, managed switches, small NVRs, or access control panels without requiring a floor-standing enclosure.
- 24-Inch Depth: The 24" depth accommodates standard 1U/2U network and security appliances, including most 1U NVRs and managed PoE switches up to 24" chassis depth — verify your deepest component before ordering.
- Scalable Thermal Management: The enclosure accepts optional fan/filter assemblies or air conditioning units rated at 1,000 BTU, 1,300 BTU, or 2,200 BTU depending on the heat load of installed equipment. This modular approach lets you right-size cooling after calculating actual wattage rather than over-specifying at rough-in.
- Wall-Mount Form Factor: Eliminates floor footprint entirely — relevant in server closets, IDF rooms, or retail back-of-house spaces where floor space is constrained or where equipment must be mounted above flood-prone areas.
- Multiple Configuration Options: Available height variants (24"/12U, 36"/19U, 48"/26U) and depth variants (24" and 30") mean the GL36N12 platform can be specified consistently across a multi-site deployment while matching the rack unit and depth requirements of each location individually.
Frequently Asked Questions
Q: What does NEMA 12 mean for this enclosure, and is it suitable for outdoor use?
A: NEMA 12 covers dust-tight and drip-proof protection for indoor industrial environments. It is not rated for outdoor use — for outdoor deployments you would need at minimum a NEMA 3R or NEMA 4 enclosure. The GL36N12-24-B-AC00 is designed for indoor industrial spaces such as manufacturing floors, mechanical rooms, and telecom closets.
Q: What cooling options are available for the GL36N12-24-B-AC00?
A: The enclosure accepts optional fan/filter assemblies or air conditioning units rated at 1,000 BTU, 1,300 BTU, or 2,200 BTU. The base unit (GL36N12-24-B-AC00) does not include active cooling — thermal accessories are ordered separately based on the calculated heat load of installed equipment.
Q: How many rack units does the GL36N12-24-B-AC00 provide?
A: In its 36-inch height configuration, the enclosure provides 19U of rack space. The GL36N12 platform is also available in 24-inch (12U) and 48-inch (26U) height variants if a different rack unit count is required for your deployment.
Q: What is the depth of the GL36N12-24-B-AC00, and will standard 1U appliances fit?
A: This model is 24 inches deep. Most standard 1U and 2U network appliances, managed switches, and NVRs fit within this depth. Always verify the chassis depth of your deepest component — some higher-density switches and servers exceed 24 inches and require the 30-inch depth variant.
Q: Can the GL36N12-24-B-AC00 be used as a floor-standing enclosure?
A: No — the GL36N12-24-B-AC00 is a wall-mount enclosure designed to be fastened to a structural wall. If a floor-standing configuration is needed, Vertiv offers separate floor-mount rack enclosure families.
The GL36N12-24-B-AC00 is one of those enclosures I recommend specifically when a client has an industrial-environment IDF or edge distribution point that can't use an open-frame rack. The NEMA 12 rating is the key differentiator here — it keeps dust and drip contamination off your switching and NVR gear in spaces where a standard rack cabinet would fail within a year.
Technical Highlights:
- 19U Capacity at 36" Height: Enough room for a managed PoE switch, a small NVR, patch panel, and a UPS in a single wall-mount footprint — useful when floor space is not available in the equipment room.
- Modular Thermal Options (up to 2,200 BTU AC): The ability to add 1,000, 1,300, or 2,200 BTU air conditioning after installation means you can deploy the enclosure during rough-in and spec the cooling unit once final equipment loads are confirmed — avoids over-cooling and over-spend on thermal capacity you may not need.
- 24" Depth: Fits the majority of 1U security appliances and managed switches without modification; the 30" depth variant exists if you're running deeper chassis gear.
Deployment Considerations:
- Verify wall structure before installation — 19U of populated rack gear is substantial weight for a wall-mount application; structural blocking or a dedicated wall backing is typically required.
- The GL36N12-24-B-AC00 base unit ships without active cooling — if your equipment load generates meaningful heat, plan the thermal accessory order at the same time to avoid a return trip for installation.
This enclosure is the right call for manufacturing-floor edge closets, warehouse IDF points, and utility-room network termination where NEMA 12 protection is specified by the facilities team and floor space cannot be allocated to a standing rack.
