Vertiv GL36WMS-B-00 19U Wall-Mount Network Enclosure
The Vertiv GL36WMS-B-00 is a wall-mount enclosure from the Geist WM Essential line, designed for network and AV equipment in telecom closets, server rooms, and branch-office wiring rooms where floor space is unavailable or impractical. If you're evaluating Vertiv enclosure and cabinet solutions, the GL36WMS-B-00 represents the 19U, gray-finish configuration in this family, with selectable depth and door style to match your environment. Search variation: GL36WMS-B-00 (also searched as GL36WMS B 00).
Overview
Wall-mount enclosures solve a specific problem: you need to rack standard 19" equipment in a location where a floor-standing cabinet won't fit — a hallway IDF, a retail back-office, a warehouse edge node. The GL36WMS-B-00 targets those installs with a configurable depth and door configuration. At 19U, it holds enough switching, patch panels, and access-point controllers to serve a mid-size branch without consuming floor real estate. Browse the full range of wall-mount network enclosures to compare unit height and form factor options across the catalog.
Key Features
- 19U rack capacity: Fits standard 19" equipment — managed switches, patch panels, small NVRs, access controllers — without requiring a floor-standing cabinet. The 36" overall height keeps the unit within reach for routine maintenance.
- Configurable depth (18" or 24"): The 18" option works in shallow alcoves and narrow closets; the 24" depth accommodates deeper switch chassis and UPS units that the 18" version simply can't accept. Confirm your deepest piece of equipment before ordering — depth is not field-adjustable after cabinet selection.
- Multiple height variants in the family (12U / 19U / 25U): If 19U is more than you need, the same Essential line offers 24" (12U) and 48" (25U) configurations, so you're not paying for unused rack space or cramming equipment into an undersized cabinet.
- Door style options (Plexi, Mesh, Solid): Plexi lets you visually confirm indicator lights without opening the door — useful in low-traffic closets where you pass by without stopping. Mesh maximizes passive airflow, appropriate when you're relying on room HVAC rather than active fans. Solid provides the cleanest appearance in customer-facing or mixed-use spaces.
- Airflow configurations (None, Fan, Clear): The fan option matters in closets where ambient temperatures run high due to poor HVAC coverage. If you're installing in a well-ventilated room, the passive clear configuration keeps costs and noise down. Match this choice to a cabinet cooling and thermal management plan rather than guessing.
- Gray finish: Standard gray blends into typical data-room environments without drawing attention — appropriate for installs inside server rooms, utility closets, and back-of-house network spaces where aesthetics are secondary to function.
Integration and Compatibility
The GL36WMS-B-00 is a passive enclosure — it accepts any 19" rack-mount equipment using standard EIA-310 hole patterns. It does not include integrated power distribution or cable management by default; plan for a rack-mount PDU and horizontal cable managers based on the port density of your installed equipment. For installations that include PoE switches or small UPS units, confirm that the enclosure depth you select can accommodate the equipment's full body plus cable egress clearance — a common oversight in wall-mount installs.
Frequently Asked Questions
Q: What is the rack unit capacity of the GL36WMS-B-00?
A: The GL36WMS-B-00 is a 19U configuration in the WM Essential family. The same family also offers 12U (24" height) and 25U (48" height) variants if your capacity needs differ.
Q: What depth options are available for the GL36WMS-B-00?
A: Two depth options are available: 18" and 24". Choose 18" for shallow closets with compact switching gear; choose 24" if you're installing deeper chassis, larger UPS units, or need additional cable management clearance behind equipment.
Q: What door styles can I select for this enclosure?
A: The WM Essential line offers Plexi (see-through acrylic for visual checks), Mesh (open airflow for passive ventilation), and Solid door configurations. The right choice depends on your airflow strategy and whether visual equipment monitoring through the door matters in your deployment.
Q: Does the GL36WMS-B-00 include built-in fans?
A: Fan, None, and Clear airflow configurations are available in this family. If your closet runs warm, select the fan-equipped configuration. If room HVAC is adequate, the passive clear option keeps noise and power consumption lower.
Q: Is the GL36WMS-B-00 compatible with standard 19" rack equipment?
A: Yes. Like all EIA-310 compliant 19" enclosures, it accommodates standard rack-mount equipment including switches, patch panels, NVRs, access control panels, and similar devices. No proprietary rail system is involved.
The GL36WMS-B-00 is a configurable 19U wall-mount that solves a very specific site constraint — you need to rack equipment but you don't have floor space. The depth option is the decision that catches people: the 18" version is genuinely too shallow for most managed-switch chassis with SFP modules installed, so unless your gear list is strictly patch panels and 1U appliances, I'd default to the 24" depth selection and give yourself the clearance.
Technical Highlights:
- 19U at 36" overall height: Enough capacity for a full branch-office stack (switch, patch panel, NVR, access controller) without requiring a floor-standing cabinet — keeps the IDF install clean and accessible at standing height.
- Depth configurability (18" vs 24"): The 6" difference is the margin between fitting a PoE+ switch with proper cable egress and fighting it every time you need to add a run. Measure your deepest piece of gear plus 2–3" for cable bend radius before selecting.
- Door and airflow pairing: Mesh door + fan configuration works for warm closets; Plexi door + passive clear works where HVAC is reliable and you want quick visual status checks without opening the cabinet. Don't mix Solid door with no-fan in a thermally challenged closet — that's how you cook switching hardware.
Deployment Considerations:
- Wall-mount enclosures require solid backing — verify stud spacing or use a wall-anchor rated for the loaded cabinet weight before install. The GL36WMS-B-00 at 19U can carry substantial equipment load; the mounting surface matters more than most installers budget time to check.
- This enclosure does not include integrated cable management or PDU by default. Budget for horizontal managers and a rack-mount PDU at the planning stage, not as an afterthought when you're already pulling cable.
This unit is the right call for branch-office IDF closets, in-ceiling network nodes above drop ceilings (confirm ceiling weight rating), and warehouse edge locations where a full floor cabinet would be a physical obstruction. If your deployment is a high-density data room with more than 19U of equipment, move to a floor-standing open-frame or enclosed rack instead.
