Eaton SR4POST – 4‑Post 45U Open Frame Rack

Overview

The Eaton SR4POST is a 45U 4‑post open frame rack engineered for mounting standard 19‑inch EIA‑310 equipment such as servers, switches, PDUs, and cable management accessories in structured IT environments. It’s deployed by data center engineers, network architects, and facilities teams where machine accessibility, airflow, and cost‑effective rack infrastructure without enclosed panels are priorities. This design supports quick access for installation and service while allowing air to move unobstructed around mounted hardware.

Structurally, the rack is built from heavy‑duty cold‑rolled steel with a textured black powder‑coat finish and numbered square‑hole mounting positions for repeatable device placement. Its adjustable mounting rails accommodate a range of equipment depths. The open frame is suitable for higher density and heavier equipment expected in enterprise racks where cooling strategies rely on forced air rather than enclosure panels.

The SR4POST fits into core data centers, network closets, and IDF/MDF rooms where space efficiency and rack scalability are critical. Its 45U vertical capacity positions it for both networking and compute equipment stacks and supports integration with vertical rack PDUs and cable managers trained along upright posts.

This rack integrates with standard rack accessories including vertical PDUs, cable managers, shelves, and sliding rails. Bolt‑down provisions and a self‑squaring frame design facilitate rigid installation on raised floors or hard surfaces to minimize instability under load.

In a practical deployment, SR4POST provides a cost‑effective framework for a row of rack mounts in a branch data closet where access from all sides expedites equipment service and cable changes. It is not suitable where environmental enclosure (dust/temperature isolation) or physical security locking panels are required — enclosed cabinets should be selected in those cases.

Key Features

1. 45U open frame 4‑post rack for 19″ EIA equipment
2. Heavy‑duty cold‑rolled steel with textured black finish
3. Square‑hole, numbered mounting positions
4. Adjustable depth rails for flexible equipment fit
5. Bolt‑down provisions and self‑squaring frame design