Vertiv GL24SR-B 12U Wall-Mount Swing Rack
Overview
The Vertiv GL24SR-B is a 12U wall-mount swing rack built for telecom closets, structured cabling rooms, and edge IT deployments where floor space is at a premium and front-access-only installations aren't an option. At 24"H x 21"W x 18"D with a 180-degree swing frame, the GL24SR-B lets technicians reach the back of every mounted device without pulling equipment off the wall — a genuine time-saver during cable-heavy commissioning or ongoing maintenance. Explore the full Vertiv rack and enclosure catalog if you're sizing a larger deployment.
Key Features
- 12 RMU Capacity in a Compact Footprint: Twelve rack units in a 24" x 21" x 18" envelope means you can fit a PoE switch, patch panel, fiber termination shelf, and a UPS in a single wall-mounted unit — without consuming any floor space. Right-sized for IDF closets and edge nodes that can't justify a full floor cabinet.
- 50 lb. Weight Capacity: Rated to hold 50 lb. of mounted gear, which comfortably covers a 1U managed switch plus a 24-port patch panel plus cabling. If your load approaches or exceeds that number, step up to a deeper four-post floor rack — the 50 lb. limit is real and shouldn't be treated as a soft guideline.
- 16" Usable Depth: The internal usable depth runs 16", which accommodates 1U and 2U switches and patch panels that top out around 12–14" in depth. Deep firewall appliances or full-depth servers won't fit — this is intentionally a shallow-depth unit for wall-mount rack applications where projection off the wall matters.
- 180° Swing Frame with Stay-Open Hinge Pins: The frame rotates a full 180 degrees and locks open via stay-open hinge pins, so it won't swing back on you mid-cable-run. That's a practical detail that matters when you're terminating patch cables with both hands occupied.
- #12-24 Tapped Mounting Holes (Front and Rear): Both the front and rear rails use standard #12-24 tapped holes, so you can mount any standard rack-unit gear without hunting for cage nuts. Compatibility with off-the-shelf rack hardware reduces sourcing friction during installations.
- Obround Cable Management Pattern: The frame includes obround cutouts sized for cinch straps, keeping horizontal and vertical cable runs organized inside the enclosure. Clean cable management isn't cosmetic — it directly reduces troubleshooting time and airflow restriction around gear.
- UL2416 and RoHS II Certified: UL2416 is the UL standard for rack and cabinet enclosures, confirming the unit has been independently tested for structural and electrical safety. RoHS II compliance matters for enterprise procurement teams with environmental compliance requirements or EU export considerations.
- Black Finish: Ships in black, which blends with standard rack hardware and wall-mount enclosures in commercial IT environments. No custom finish or color options noted in evidence.
Integration and Compatibility
The GL24SR-B is compatible with standard 19" rack-mount equipment. The #12-24 tapped rails accept conventional rack screws without adapters, and the 16" usable depth fits the majority of 1U patch panels, managed switches, and small UPS units used in network switch and structured cabling deployments. Wall-mount blocking or backing plates are the installer's responsibility — the unit assumes a structurally adequate wall substrate (wood blocking, concrete, or steel stud with appropriate anchors). Verify wall construction and anchor ratings before installation; the 50 lb. load capacity of the rack itself does not account for wall anchor limits.
For deployments requiring more than 12U, deeper equipment, or loads above 50 lb., consider pairing this unit with a companion floor-standing enclosure or stepping to a larger wall-mount enclosure in the Vertiv Great Lakes line. For power distribution inside the rack, a 1U horizontal PDU fits within the depth envelope. Review your cable management strategy before final placement — the obround pattern accommodates cinch straps but not larger cable managers or horizontal lacing ducts.
Frequently Asked Questions
Q: What is the weight capacity of the GL24SR-B?
A: The GL24SR-B is rated for 50 lb. of mounted equipment. This covers typical IDF loads — a 1U managed switch, 24-port patch panel, and associated cabling — but deep appliances or stacked servers will exceed this limit. Size your load before installation.
Q: What mounting hole standard does the GL24SR-B use?
A: Both front and rear rails use #12-24 tapped holes, which accept standard rack screws without cage nuts. This is compatible with the vast majority of 19" rack-mount equipment.
Q: How deep is the usable interior of the GL24SR-B?
A: Usable depth is 16". The overall enclosure is 18" deep, but the usable mounting depth between front and rear rails is 16". Equipment with chassis depths up to approximately 14" will fit with room for cable bend radius at the rear.
Q: What certifications does the GL24SR-B carry?
A: The GL24SR-B is certified to UL2416 (the UL standard for rack and cabinet enclosures) and meets RoHS II (Restriction of Hazardous Substances Directive). These are noted in the product specifications from the manufacturer.
Q: Can the swing frame be locked open during maintenance?
A: Yes. The GL24SR-B uses stay-open hinge pins that hold the frame at its open position (up to 180° rotation), so the frame won't swing back during cabling or equipment work.
Q: Is the GL24SR-B suitable for a server room or only a telecom closet?
A: The GL24SR-B is best suited for telecom closets, IDF rooms, and edge IT nodes where 12U of wall-mount capacity is sufficient. For full server rooms with higher density, deeper equipment, or heavier loads, a floor-standing four-post rack is the appropriate choice.
The GL24SR-B earns its place in structured cabling deployments specifically because of that 180-degree stay-open swing frame — it's the spec that separates a swing rack from a fixed wall-mount box in day-to-day use. When you're terminating 24 patch cables in an IDF with no room to stand behind the unit, having the frame lock open at full rotation versus fighting a spring-loaded hinge is a meaningful difference. I spec the GL24SR-B (also searched as GL24SR B) in telecom closets where the load stays under 50 lb. and equipment depth stays under 14 inches.
Technical Highlights:
- 180° Stay-Open Hinge: Frame locks open via hinge pins — not a friction stop — so it won't drift closed during two-handed cable work. That's a construction detail worth confirming on any swing rack you're comparing.
- #12-24 Tapped Rails (Front and Rear): Both rail sets are tapped, meaning standard rack screws go straight in. No cage nut inventory required, no tool for insertion — faster to commission than square-hole frames in shallow-depth applications.
- UL2416 Certification: Independent structural and electrical safety testing, not just a self-declaration. Relevant if your AHJ or enterprise procurement requires third-party certification on rack enclosures.
Deployment Considerations:
- The 50 lb. weight capacity governs equipment selection — audit your switch, patch panel, and UPS weights before specifying. A 24-port PoE+ switch alone can run 8–12 lb.; two of them plus a patch panel approaches the limit quickly.
- The 16" usable depth won't accommodate full-depth appliances. Confirm chassis depth on every SKU you plan to mount — anything over 14" will create rear-cable clearance problems or physically won't seat on both rail sets.
The GL24SR-B is the right call for a single-closet IDF node running a managed access switch, structured cabling patch field, and a small 1U UPS — particularly in commercial office or school buildouts where the closet is too tight for a floor cabinet and the load profile stays predictable over the building's lifecycle.
