Eaton SR4POST48HD 48U 4-Post Open Frame Rack 3000 lb

Overview :

The Eaton SR4POST48HD is a 48U heavy-duty 4-post open frame rack designed for housing servers, network equipment, and power infrastructure in environments where airflow, accessibility, and load capacity are prioritized over physical enclosure security. It is typically deployed by data center engineers and network teams managing high-density infrastructure.

This rack supports standard 19-inch equipment and provides a 48U mounting capacity with a static load rating of up to 3000 lbs (1360 kg). It accommodates equipment depths up to 35 inches, making it suitable for deep servers, rack-mounted UPS systems, and storage arrays. The open frame design ensures unrestricted airflow and simplifies cable routing, while square-hole mounting rails support standard M6 cage nut installations.

The SR4POST48HD is commonly deployed in data centers, MDF environments, and lab infrastructure where equipment density is high but full enclosure cabinets are not required. Its open architecture allows rapid equipment access, making it ideal for staging areas, test labs, and high-frequency maintenance environments.

From an integration perspective, the rack includes toolless button-mount support for vertical PDUs and cable managers, enabling efficient 0U power distribution without consuming rack units. Multiple racks can be bayed together for row-based deployments, and bolt-down provisions support fixed installation in seismic or high-load environments.

A practical deployment example includes installing SR4POST48HD racks in a staging zone of a data center where servers and storage arrays are configured before being moved into production enclosures. The open design accelerates installation and troubleshooting while maintaining structural integrity for heavy equipment.

This rack should not be used in environments requiring physical security, controlled airflow containment (hot/cold aisle isolation), or dust protection. It is also not suitable for office deployments where enclosed cabinets are required for noise and aesthetic control.

Key Features

• 48U open frame design for unrestricted airflow
• 3000 lb load capacity for dense IT equipment
• Supports equipment depths up to 35 inches
• Square-hole rails for standard 19-inch mounting
• Toolless 0U mounting for PDUs and cable managers