Vertiv Cmrx 52U 24 in 36 in Black - CMRX-52U36-B-SQM6

Vertiv CMRX-52U36-B-SQM6 52U 36-Inch Deep Black Open-Frame Rack Enclosure

Overview

The Vertiv CMRX-52U36-B-SQM6 is a 52U, 36-inch-deep open-frame rack enclosure finished in black, built to house network, security, and AV equipment in structured cabling rooms, server closets, and surveillance head-end installations. The CMRX series is part of Vertiv's infrastructure lineup, designed with installers in mind: standard #12-24 tapped M6 square-hole rails, UL2416 listing, and RoHS II compliance mean this rack ships ready for real-world deployment without sourcing adapter hardware. If you're specifying a rack enclosure for a multi-camera NVR and patch-panel build, the 52U height gives you room to scale without planning a second rack on day one.

Key Features

• 52U Height — Room to Grow: At 52U, this enclosure accommodates a dense head-end build — NVRs, patch panels, PoE switches, UPS, and cable management — without stacking a second rack. Fewer racks mean fewer power drops and cleaner cable runs, which matters in a constrained IDF or security closet.
• 36-Inch Depth: A 36-inch interior depth comfortably fits full-depth 1U/2U servers and NVR appliances (most commercial NVRs run 18–26 inches deep), leaving clearance for rear cable management without forcing awkward bends on Cat6 or fiber patch cords.
• #12-24 Tapped M6 Square-Hole Rails: M6 square-hole threading is the de facto standard for commercial rackmount gear — virtually every enterprise switch, NVR, and UPS ships with M6 cage nuts or matching hardware. No rail adapter kits, no thread-chasing; equipment drops straight in. The rack mounting hardware included in the box supports standard 19-inch EIA-310 equipment.
• Black Finish (Winter White Also Available in Family): The black finish suits low-visibility installations — data centers, NOCs, and security operations centers where rack aesthetics matter for client-facing environments. Color is consistent across front and rear rails.
• UL2416 Listed: UL2416 is the UL standard for information technology and network equipment racks — required by many AHJs and enterprise customers as a condition of installation. Having the listing on the rack itself removes a common inspection friction point.
• RoHS II Compliant: RoHS II compliance satisfies EU hazardous-substance restrictions and is increasingly required by government and education end-users on procurement checklists, even for domestic US deployments.
• 1/4-Turn D-Ring Cable Management (Qty. 20 Included): Twenty 3.5×5-inch D-rings ship in the box — enough to establish front and rear cable management on every other U, keeping patch cords and power cables organized without a separate cable management order. The 1/4-turn attachment means they install and reposition without tools.

Integration & Compatibility

The CMRX-52U36-B-SQM6 accepts standard 19-inch EIA-310 rackmount equipment. The M6 tapped square-hole rails work directly with PoE network switches, NVRs, patch panels, and UPS units from any major manufacturer without adapter hardware. If you're integrating this rack into a structured rack deployment, the 52U column height supports full horizontal cable manager trays (1U/2U) above and below switching layers without compressing the equipment count. The open-frame design allows airflow from multiple directions — appropriate for installations where a physical enclosure door is not required by security policy or where side-access to rear cabling is routine during maintenance.

What's in the Box

• 1x CMRX-52U36-B-SQM6 rack enclosure (black)
• Rack mount hardware
• 20x 3.5″ × 5″ 1/4-turn D-rings

Frequently Asked Questions

Q: What rail thread standard does the CMRX-52U36-B-SQM6 use?

A: The CMRX-52U36-B-SQM6 uses #12-24 tapped M6 square-hole rails — the standard thread used by the vast majority of commercial rackmount equipment including switches, NVRs, patch panels, and UPS units. No cage nut adapters are required for M6-compatible equipment.

Q: Is the CMRX-52U36-B-SQM6 UL listed?

A: Yes. The CMRX-52U36-B-SQM6 carries a UL2416 listing, which is the UL standard for IT and network equipment racks. This satisfies most AHJ and enterprise procurement requirements for rack certification.

Q: How many D-rings are included, and what size are they?

A: The box includes 20 D-rings measuring 3.5 inches by 5 inches with a 1/4-turn attachment mechanism. They install and reposition without tools and provide front and rear cable management for dense patch-cord environments.

Q: What is the depth of the CMRX-52U36-B-SQM6, and will it fit full-depth servers?

A: The enclosure is 36 inches deep, which accommodates full-depth 1U and 2U commercial servers and NVR appliances (typically 18–26 inches deep) with clearance remaining for rear cable management.

Q: Is the CMRX-52U36-B-SQM6 RoHS compliant?

A: Yes, the CMRX-52U36-B-SQM6 is RoHS II compliant, satisfying EU hazardous-substance restrictions and meeting government and education procurement requirements that mandate RoHS compliance even for domestic deployments.

Q: What rack height options are available in the CMRX series?

A: Based on available product family information, the CMRX series is available in 45U, 52U, and 59U heights. The CMRX-52U36-B-SQM6 is the 52U configuration with a 36-inch depth in black.

Eden Phillips

When I spec a rack for a security head-end build, the rail standard is the first thing I check — and the CMRX-52U36-B-SQM6 gets it right with #12-24 tapped M6 square-hole rails. That single detail eliminates the cage-nut adapter sourcing step that quietly adds time to installs where you're mounting a mix of PoE switches, NVRs, and patch panels from different vendors.

Technical Highlights:

• 52U Column Height: At 52U, you have headroom for a full surveillance head-end — 2U NVR, 1U PoE switch, 2U patch panel, 2U UPS, cable managers — and still have 30+ U available if the scope grows. Far better than specifying a 42U and ordering a second rack six months later.
• UL2416 Listing: This is the listing AHJs and enterprise facilities managers specifically ask for on rack hardware — not a generic UL mark. Having it on the CMRX-52U36-B-SQM6 means the rack passes inspection without a variance request.
• 20x 1/4-Turn D-Rings Included: Twenty 3.5×5-inch D-rings in the box is a meaningful inclusion — at roughly $2–4 each retail, that's a $40–80 line item that disappears from the BOM. The 1/4-turn mechanism means they reposition without a screwdriver when cable runs change post-commissioning.

Deployment Considerations:

• The open-frame design means no door — plan your physical security separately if the closet is shared or accessible to non-IT staff. A lockable wall-mount enclosure or access-controlled room is the right complement here.
• The 36-inch depth requires a room with adequate clearance front and rear — BICSI and TIA-942 both recommend 36 inches of front access and 24 inches rear; measure the IDF before committing to this footprint.

The CMRX-52U36-B-SQM6 is the right call for new-construction security operations centers and dedicated surveillance head-end rooms where equipment density is planned from day one and the UL2416 listing is a hard bid requirement.