Ortronics MM20CTB4PU-B Cable Tray Bottom 4-post

Product Description

The ORTRONICS MM20CTB4PU-B is a bottom cable tray designed for 4-post rack installations in structured cabling and network infrastructure environments. It provides a dedicated pathway for routing and managing cables beneath rack-mounted equipment, keeping runs organized and strain-relieved from the point of termination. The universal design accommodates a wide range of 4-post open-frame and enclosed rack configurations. Installation is handled by data center technicians, structured cabling installers, and low-voltage contractors working on rack infrastructure builds or upgrades.

This cable tray is suited for use in data centers, server rooms, telecommunications closets, and enterprise network environments. It is intended for bottom-mount installation on standard 4-post racks and pairs with compatible cable management accessories. The universal fit supports use across common rack widths and depths found in both new installations and retrofit applications. Installers working in mixed-vendor rack environments will find this tray a practical horizontal cable management solution.

Key Features

• Bottom-mount design routes cables cleanly below rack-mounted equipment
• Universal fit supports a range of standard 4-post open-frame and enclosed racks
• Single-unit configuration sold individually for targeted placement
• Designed for structured cabling and low-voltage infrastructure applications
• Compatible with ORTRONICS MM20 series cable management accessories

Compatibility

Designed as an OEM-style bottom cable tray for use with standard 4-post racks in structured cabling and network infrastructure installations.

Installation Notes

Installation is typically performed by low-voltage cabling contractors or data center technicians following TIA-942 or BICSI guidelines. Power down or de-energize any active equipment in the rack before mounting hardware to avoid accidental disconnection. Secure all fasteners to the rack posts before routing cables through the tray to ensure proper support. Follow the rack manufacturer's mounting hole spacing specifications when positioning the tray.