Vertiv GL48WMCMP-W-SE-00-CM 25U Wall-Mount Network Enclosure
Overview
The Vertiv GL48WMCMP-W-SE-00-CM is a 48-inch (25U) wall-mount network enclosure finished in Winter White, configured with SEAL Electronic access control, fan airflow, and a cable bar for structured cable routing. Designed for structured cabling closets, IDF rooms, and branch-office telecom spaces where you need a full-depth rack solution mounted off the floor, this cabinet covers the gap between a simple open-frame wall bracket and a full free-standing rack.
The GL48WMCMP-W-SE-00-CM (often searched as GL48WMCMP W SE 00 CM) ships as part of Vertiv's GL WM Premium line — a configurable platform spanning 12U, 19U, and 25U heights in Black or Winter White, with multiple door, lock, airflow, and cable management variants. The 25U depth gives you enough space to house patch panels, switches, a small UPS, and associated cabling without overcrowding — a practical consideration for wiring closets that double as edge compute nodes.
Explore the full Vertiv enclosure and power catalog or browse the broader range of network cabinets and racks to compare open-frame, enclosed, and free-standing alternatives before specifying.
Key Features
- 25U (48-inch) Height: 25U of usable rack space in a wall-mount form factor — enough for a complete IDF build-out (top-of-rack switch, patch panels, fiber terminations) without requiring floor space. If your wiring closet is already at capacity on the floor, this is the configuration to spec.
- Winter White Finish: The Winter White color option is specifically suited for installations in finished office environments, healthcare corridors, or education facilities where a gray or black cabinet would stand out as industrial. Matches standard suspended-ceiling grid and wall finishes common in commercial build-outs.
- SEAL Electronic Access Control: Electronic lock replaces a keyed swing handle, giving you audit-trail capability and credential-based access management at the cabinet level. Relevant for environments with compliance requirements around physical access to network infrastructure — telecom rooms that fall under HIPAA physical safeguard rules, for example.
- Fan Airflow Option: Active fan airflow addresses the heat buildup that wall-mount enclosures are prone to when loaded with high-density PoE switches or compact servers. Without active airflow, a sealed 25U cabinet can run significantly warmer than ambient — the fan option keeps switch and patch panel operating temps in check during peak load.
- Cable Bar Cable Management: The cable bar keeps horizontal cable runs organized at the sides of the enclosure, reducing strain on patch panel ports and making MACs (moves, adds, changes) faster. Compared to no cable management, a cable bar pays back its cost the first time you need to trace and re-terminate a run in a fully loaded cabinet.
- Plexiglass, Mesh, or Solid Door Options: The GL WM Premium platform supports three door styles. Plexiglass gives visual inspection without opening the cabinet — useful for a quick status check on indicator LEDs without unlocking. Mesh maximizes passive airflow. Solid provides the cleanest appearance in client-facing spaces. This unit ships in the configuration indicated by the SKU — verify the door variant before ordering if appearance or airflow is a deciding factor.
- Multiple Height Variants (12U / 19U / 25U): The same GL WM Premium platform is available in 24-inch (12U) and 36-inch (19U) heights. If you're planning a smaller IDF with only patch panels and a single switch, the 12U or 19U cuts wall footprint. The 25U here is the right call when you're aggregating fiber, copper, and a managed switch in one location.
- Black or Winter White Color: Both colorways are available across the platform — select based on the installation environment. Black suits server rooms and data closets; Winter White suits finished office and healthcare spaces. Do not mix colorways across adjacent cabinets in a row — visual consistency matters in client-visible installations.
Integration and Compatibility
The GL48WMCMP-W-SE-00-CM is designed to accept standard 19-inch rack-mount equipment — patch panels, PoE and managed network switches, fiber enclosures, and small UPS units all mount using standard EIA-310 spacing. The SEAL Electronic lock integrates with electronic access control systems for centralized credential management; consult Vertiv's access control documentation for specific controller compatibility before deploying in a multi-cabinet row.
For structured cabling deployments, pair this enclosure with the appropriate structured cabling components — patch panels, cable managers, and fiber termination enclosures — to build a complete IDF. Review a structured cabling planning guide if you're sizing the enclosure against expected port counts and cable volumes.
Frequently Asked Questions
Q: What is the usable rack space in the GL48WMCMP-W-SE-00-CM?
A: The GL48WMCMP-W-SE-00-CM is a 48-inch tall enclosure providing 25U of usable rack space for standard 19-inch rack-mount equipment.
Q: Does the GL48WMCMP-W-SE-00-CM include active cooling?
A: Yes. This configuration includes fan airflow, which actively manages heat buildup inside the enclosure — important when housing high-density PoE switches or other heat-generating equipment in a sealed wall-mount cabinet.
Q: What type of lock does the GL48WMCMP-W-SE-00-CM use?
A: This unit is configured with SEAL Electronic access control, providing electronic locking with audit-trail and credential-management capability rather than a standard keyed swing handle.
Q: Is the Winter White finish available across all GL WM Premium heights?
A: The GL WM Premium platform is available in both Black and Winter White across the 12U (24-inch), 19U (36-inch), and 25U (48-inch) height options. Confirm the specific SKU for the height and color combination you need.
Q: What cable management does this enclosure include?
A: The GL48WMCMP-W-SE-00-CM includes a cable bar, which organizes horizontal cable runs at the sides of the enclosure and reduces port strain on patch panels. A 'None' cable management option is available on other SKUs in the platform if a different configuration is required.
Q: What door options are available on the GL WM Premium platform?
A: The platform supports Plexiglass, Mesh, and Solid door variants. Plexiglass allows visual inspection without opening the cabinet; Mesh maximizes passive airflow; Solid provides the cleanest appearance in finished environments. Verify the door type encoded in the specific SKU you order.
The GL48WMCMP-W-SE-00-CM is the configuration I'd spec for a finished-office IDF where you need 25U of capacity, an auditable electronic lock, and active fan cooling — all in a Winter White finish that won't look like a server closet transplant. The SEAL Electronic access control is the feature that sets this apart from a basic swing-handle enclosure; if you're in an environment where physical access to network gear needs to be logged, that's a real operational requirement, not a nice-to-have.
Technical Highlights:
- 25U Wall-Mount Capacity: 48 inches of height translates to 25U — enough for a full IDF stack (core switch, patch panels, fiber termination, and a small UPS) without touching the floor. That matters in mechanical rooms and closets where floor space is shared with HVAC or electrical panels.
- SEAL Electronic Lock: Electronic access control at the cabinet level supports credential-based entry and audit logging. In healthcare or financial environments with physical infrastructure compliance requirements, this is the difference between passing a site audit and failing it.
- Fan Airflow: Active fan cooling in a sealed wall-mount enclosure is not optional when you're running a 24-port PoE+ switch and two patch panels behind a closed door. Passive convection in a wall cabinet is insufficient under real load — this configuration addresses that directly.
Deployment Considerations:
- The cable bar is a single horizontal organizer — if you're running high-density copper (48+ ports per U), plan for additional vertical cable management accessories outside the enclosure to keep the front presentable and maintainable.
- Winter White is a specific colorway; if you're adding this cabinet to an existing row of Black GL WM units, you will have a visible mismatch. Order all cabinets in the same colorway at the start of the project.
This enclosure is the right fit for a branch-office or campus IDF build in a finished commercial space — healthcare clinics, professional services offices, or education facilities — where appearance, electronic access logging, and thermal management all matter simultaneously.
