Vertiv GL24WMP-B-00 12U Wall-Mount Network Cabinet
Overview
The Vertiv GL24WMP-B-00 is a 12U wall-mount enclosure built for space-constrained IDF closets, server rooms, and network distribution points where floor space is unavailable but rack density still matters. At 24"H x 21"W x 24"D with 22" of usable depth, it fits standard 19-inch network switches, patch panels, and smaller UPS units without forcing you into a workaround. The 150 lb weight capacity is the spec that separates this from lightweight SOHO mounts — it handles a loaded patch panel, a managed PoE switch, and a small UPS simultaneously without stressing the wall anchor points.
This is a Great Lakes enclosure — the GL24WMP-B-00 (often searched as GL24WMP B 00) carries the same fit-and-finish and Vertiv product line build standards that integrators rely on for structured cabling and network closet builds. If you're specifying a wall-mount network cabinet for a retail branch, a school IDF, or a manufacturing floor distribution point, this is a correctly-sized unit for 12RU deployments that don't need a full-height floor cabinet.
Key Features
- 12 Rack Units (12RMU): Fits a 24-port PoE switch (1U), a 24-port patch panel (1U), a managed edge switch, and a small UPS in the same enclosure — no separate cabinet needed for a standard IDF build. Twelve units is the sweet spot for branch-office network closets.
- 22" Usable Depth: The full external depth is 24", but 22" is available for equipment. That clears most 1U–2U switches and patch panels, but measure your deepest UPS before ordering — some 1500VA tower-style units run 23"+ and won't fit.
- 150 lb Weight Capacity: Engineered for real equipment loads, not just patch panels. A fully loaded 12U enclosure with switches, panels, and a small UPS will typically run 40–80 lbs — this cabinet has headroom for dense configurations without being near its limit.
- 12-24 Tapped Mounting Rails, 18" Max Rail Spacing: Standard #12-24 tapped rails mean any rack-mount equipment with standard cage nuts or tapped-rail compatibility installs directly. The 18" max rail spacing accommodates standard 19-inch rack equipment without adapter kits.
- Plexi Door with Keyed Lock: The clear plexi front door gives you visual status on LEDs and indicator lights without opening the cabinet — useful on a busy IDF walk-through. The keyed lock on both front door and rear section means physical access control is built in, which matters in shared spaces like school hallways or retail back-of-house.
- Fan Assembly Provisions on Top and Bottom: The enclosure includes provisions for fan assemblies (not included), so if your switch generates enough heat in an enclosed space, you can add active cooling without retrofitting or cutting the enclosure. Plan for this during installation if you're deploying high-watt PoE+ switches.
- Reversible Door Mounting: The door opens left or right — specify at install time based on wall clearance and aisle orientation. This eliminates the common problem of a wall-mount cabinet that's inaccessible because the door swings into a corridor or adjacent panel.
- UL2416 Listed: UL2416 is the standard for IT equipment racks and enclosures. For installations in commercial buildings, school districts, or healthcare facilities where AHJ sign-off is required, this listing removes the common field question about enclosure compliance.
Integration & Compatibility
The GL24WMP-B-00 is compatible with standard 19-inch rack equipment up to 12U. The #12-24 tapped rails accept most rack-mount switches, patch panels, and 1U appliances without additional hardware. The 22" usable depth covers the majority of 1U–2U enterprise switches (Cisco Catalyst, Ubiquiti UniFi, Netgear, and comparable lines typically run 12"–18" deep), but confirm depth on any 2U+ UPS or dense chassis before committing. This enclosure is not designed for deep blade chassis or large 2U–4U UPS units that exceed 22" usable depth.
For structured cabling builds, this pairs naturally with patch panels and PoE switches for a complete IDF assembly in a single enclosure. If you're designing a multi-cabinet wall deployment, note that this unit requires secure wall anchor points rated for the combined cabinet and equipment weight — a 150 lb-capacity cabinet fully loaded near that ceiling needs appropriate structural backing, not just drywall anchors.
Frequently Asked Questions
Q: What is the usable rack depth inside the GL24WMP-B-00?
A: The usable depth is 22 inches. The external depth is 24 inches, with 2 inches consumed by the enclosure structure. Most 1U–2U switches and patch panels fit comfortably; verify the depth of any UPS or deep chassis before ordering.
Q: Does the GL24WMP-B-00 include a lock on both the front door and rear section?
A: Yes. The plexi front door includes a keyed lock, and the rear section also has an independent keyed lock, providing physical access control on both sides of the enclosure.
Q: What rail type does the GL24WMP-B-00 use?
A: The enclosure uses #12-24 tapped mounting rails with a maximum rail spacing of 18 inches, compatible with standard 19-inch rack equipment. No cage nuts required for equipment designed for tapped rails.
Q: Can I add active cooling to the GL24WMP-B-00?
A: The enclosure includes fan assembly provisions on both the top and bottom panels. Fan units are not included but can be added if your equipment generates heat that requires active ventilation in an enclosed wall-mount environment.
Q: Is the GL24WMP-B-00 UL listed?
A: Yes, it carries UL2416 listing, which covers IT equipment racks and enclosures. This satisfies AHJ requirements in commercial, educational, and healthcare installations where enclosure compliance is verified during inspection.
Q: Which direction does the door open on the GL24WMP-B-00?
A: The door mounting is reversible — it can be configured for left-hand or right-hand opening during installation. This allows you to orient the swing based on wall clearance and aisle access at the installation site.
The spec I keep coming back to on the GL24WMP-B-00 is the 150 lb weight capacity paired with 22" of usable depth — that combination is what separates a cabinet you can actually build an IDF inside from one that's only good for a patch panel and a Wi-Fi controller. On a standard branch-office IDF build with a 24-port PoE switch, a patch panel, and a small inline UPS, you're typically looking at 40–70 lbs of equipment, which gives this cabinet real headroom without pushing its structural limits.
Technical Highlights:
- 22" Usable Depth: Covers the vast majority of 1U–2U managed switches (most enterprise units run 12"–18" deep), meaning you're not hunting for a shallow-depth switch just to fit the cabinet.
- Reversible Door & Independent Keyed Locks: The ability to flip door swing direction at install time isn't a luxury — in a hallway IDF or a tight back-of-house closet, it determines whether the cabinet is actually serviceable without moving furniture.
- UL2416 Listing: Satisfies the enclosure compliance question before the AHJ asks it. In K-12 and healthcare projects especially, this is a required checkbox that can stall a project close if the enclosure isn't listed.
Deployment Considerations:
- The fan provisions on top and bottom are ready for add-on fan units, but those units are not included. If you're deploying a high-watt PoE+ switch (30W+ per port, 24 ports) in a warm or enclosed space, budget for active cooling during the BOM stage — don't add it as a field afterthought.
- The 150 lb capacity is the cabinet's rated load, but your wall anchor points are the real limiting factor. In older construction with metal-stud or hollow-block walls, verify structural backing before mounting — a fully loaded 12U cabinet at 80+ lbs needs more than standard hollow-wall anchors.
This enclosure is the right call for K-12 IDF closets, retail branch network distribution points, and manufacturing floor network nodes where floor space is genuinely unavailable and you need a UL-listed enclosure that AHJs will sign off on without a field variance request.
