Vertiv GL24WMCMS-B-SE-00-CM 12U Wall-Mount Rack Enclosure
The Vertiv GL24WMCMS-B-SE-00-CM is a 12U, 24-inch-deep wall-mount enclosure from Vertiv's WM Premium line, configured in black with SEAL Electronic access control and integrated cable management. At 32 inches wide, it fits standard 19-inch rack equipment in a wall-hung footprint — the right call when floor space is off the table and you need a structured, lockable home for switches, patch panels, NVRs, or edge computing gear. This SKU (also searched as GL24WMCMS B SE 00 CM) ships as a specific factory configuration, so the options encoded in the part number are fixed: you're not assembling options post-purchase.
Overview
Wall-mount enclosures in this class serve a distinct role: they put structured cabling and active equipment on the wall — in IDF closets, security head-end rooms, retail back offices, and manufacturing floor edge nodes — without consuming rack-room floor space. The WM Premium series is Vertiv's commercial-grade offering in this form factor, built for environments where the enclosure itself needs to be lockable, cable-organized, and scalable across a campus without mixing and matching hardware. The GL24WMCMS-B-SE-00-CM sits at the intersection of physical security and IT infrastructure — a consideration for any deployment where enclosure access needs to be logged or controlled electronically.
Key Features
- 12U Capacity (24" Height): Twelve rack units in a 24-inch-tall footprint gives you enough vertical real estate for a PoE switch, patch panel, and an NVR or edge appliance in a single wall-mount unit — without the bulk of a full-height cabinet. If your head-end room is tight or you're deploying distributed nodes across a building, 12U keeps the footprint manageable.
- 24" Depth × 32" Width: The 24-inch depth accommodates full-depth 1U and 2U equipment — most 1U managed switches, 1U NVRs, and standard patch panels mount without issue. The 32-inch overall width provides the side clearance needed for cable routing alongside rack ears.
- SEAL Electronic Access Control: The SEAL Electronic lock replaces a keyed swing handle with an electronically actuated latch. For security operations centers, IDF rooms shared across teams, or any site where you need an audit trail on enclosure access, electronic locking is operationally meaningful — a keyed lock tells you nothing about who opened it and when. Pair this with your existing access control infrastructure for unified credential management.
- Black Finish: The black color option blends into server room and security head-end environments without the visual contrast of lighter enclosures. Practical in low-light equipment rooms and aesthetically consistent with most rack-mount equipment.
- Integrated Cable Management: The CM (Cable Management) configuration includes a cable bar, which keeps horizontal cable runs organized along the sides and rear of the enclosure. Unmanaged cable in a wall-mount unit becomes a service liability fast — especially when you're pulling patch cables in tight spaces. Built-in management at purchase avoids retrofitting.
- No Fan / Passive Airflow: This configuration ships without active fan cooling (the "00" airflow designator). That's appropriate for low-to-moderate heat loads — passive convection handles a PoE switch and patch panel without issue in most conditioned spaces. If you're mounting a high-wattage appliance or operating in a warm environment, evaluate your thermal budget before specifying this SKU; the fan-equipped variant exists in the WM Premium family for those cases.
- Multiple Door Options Available in Family: The WM Premium platform supports Plexi, Mesh, and Solid front doors across configurations. This SKU's door type is defined at order — verify the door style in the full part number breakdown if visibility into indicator lights or airflow path matters for your deployment.
Integration and Compatibility
The GL24WMCMS-B-SE-00-CM is designed around standard 19-inch EIA rack rail spacing, making it compatible with the broad universe of rack-mount switches, patch panels, NVRs, UPS units, and access control panels that conform to that standard. The SEAL Electronic lock can be wired into building access control systems; consult Vertiv's SEAL accessory documentation for compatible credential readers and controller interfaces. For PoE network switches and network video recorders destined for wall-mount IDF closets, this enclosure provides the physical housing and access control in a single factory-configured unit. Review the Vertiv infrastructure catalog for complementary raceway, power distribution, and cable management accessories that pair with the WM Premium line. If your project involves structured cabling head-ends, see the structured cabling category for patch panels and fiber assemblies sized for 12U deployments. For power protection within the enclosure, rack-mount UPS units in 1U or 2U form factors are sized for this application.
Frequently Asked Questions
Q: What rack unit capacity does the GL24WMCMS-B-SE-00-CM provide?
A: This enclosure provides 12U of rack space in a 24-inch-tall wall-mount form factor, with a 24-inch depth and 32-inch width to accommodate standard 19-inch rack-mount equipment.
Q: What type of access control does the GL24WMCMS-B-SE-00-CM use?
A: This SKU is configured with SEAL Electronic access control — an electronically actuated locking mechanism, as opposed to a keyed swing handle or the SEAL Combo option available in other configurations. This allows integration with electronic access control systems for auditable enclosure access.
Q: Does the GL24WMCMS-B-SE-00-CM include active cooling?
A: No — this configuration uses passive (no-fan) airflow, designated by the "00" in the part number. It is appropriate for light-to-moderate heat loads in conditioned spaces. Fan-equipped variants are available in the WM Premium family for higher thermal requirements.
Q: What cable management is included with this enclosure?
A: The CM suffix in the part number indicates this unit ships with integrated cable management (cable bar). This keeps horizontal cable runs organized within the enclosure without requiring aftermarket accessories.
Q: Is the GL24WMCMS-B-SE-00-CM compatible with standard 19-inch rack equipment?
A: Yes. The WM Premium enclosure is built around standard EIA 19-inch rack rail spacing, supporting the full range of compliant 1U and 2U switches, patch panels, NVRs, and appliances up to 24 inches in depth.
Q: What color does this specific SKU ship in?
A: The "-B-" designator in the part number specifies black. Winter White is available as a separate SKU in the WM Premium family.
The GL24WMCMS-B-SE-00-CM is Vertiv's factory-configured answer to a question I see constantly in distributed security and IT deployments: how do you house active equipment on the wall, keep it organized, and control who gets into it — without spec'ing three separate products? The SEAL Electronic lock on this unit is the part that changes the conversation from a box to a managed asset.
Technical Highlights:
- SEAL Electronic Lock: Electronic actuation means this enclosure can be wired into an access control panel — same credential infrastructure as your doors. For IDF closets shared across IT and physical security teams, that's an audit trail on enclosure access without a separate key program.
- 12U / 24" Depth: Twelve units at 24-inch depth covers a 1U managed PoE switch, a 24-port patch panel, and a 1U NVR with room to spare — the typical head-end stack for a 16- to 32-camera security node in a retail or commercial building.
- Integrated Cable Bar (CM): The cable management bar is included in this SKU, not an add-on. In a 12U wall-mount, unmanaged horizontal runs become a problem the first time a tech services the unit — cable bar at purchase is the right call.
Deployment Considerations:
- Passive cooling (no fan) is adequate for a switch and NVR in a conditioned IDF room, but check your heat load before specifying — a high-wattage appliance in a warm closet will need the fan variant from the WM Premium family.
- The SEAL Electronic lock requires a low-voltage wiring run to your access control panel. Plan conduit during rough-in; retrofitting that wire after drywall is a real labor cost.
This enclosure is the right spec for a security or IT head-end node in a commercial building IDF closet — particularly where electronic access logging on the enclosure itself is a compliance or operational requirement, and floor space for a full-height cabinet isn't available.
