Panduit AR4P 45RU Adjustable-Depth 4-Post Open Frame Rack

Overview

The AR4P is a 45RU, powder-coated steel open frame rack built for data center and telecom room deployments where equipment depth varies across installations. The defining feature is an adjustable mounting depth from 23" to 42" in 0.5" increments — meaning a single AR4P SKU can accommodate shallow patch panels and deep UPS units without requiring a separate rack order. At 84" overall height and 20.3" overall width, it fits standard floor footprints while complying with EIA/ECA-310-E rail spacing. The #12-24 threaded E-rails on both front and rear posts accept standard rackmount hardware directly — no cage nuts required, which reduces installation time on dense builds. UL 2416 listing and RoHS compliance satisfy most enterprise and government facility requirements. The rack ships in a single package quantity of one.

Compatibility

The AR4P is designed to work with the full range of Panduit vertical and horizontal cable management products, including Panduit vertical cable managers that mount directly to the front and rear structural posts. It also accepts standard 19" rackmount accessories including power distribution unit brackets, waterfall cable managers, and vertical tie-off panels across the Panduit accessory line. The front and rear posts are structural mounting points — not just rail supports — so Panduit cable management accessories attach without additional adapter hardware. Competitor cross-reference part numbers include 15215-703, 15218-703, SB838084CFB, 15217-703, SWE04-842126BLK, and SWE-842732BLK for integrators migrating from other rack platforms to a standardized rack infrastructure.

Installation Notes

Depth adjustment is made during installation by sliding the rear rails to the required position in 0.5" steps before securing — plan your deepest equipment first to set the rear rail position before populating the rack. The #12-24 threaded rails eliminate the need for cage nut tools, but verify that your rackmount equipment uses standard #12-24 screw patterns rather than M6 metric threads, which are not compatible without adapters. The rack is finished in black powder coat; installation in environments with corrosive agents or persistent condensation is outside the rated scope of the UL 2416 certification.