Dimensions of Rack-Mounted PDUs for Broadcast Transmission

Rack-mounted PDUs for broadcast and IT racks typically fit standard 19-inch racks, with vertical (0U) or horizontal (1U–2U) mounting, and outlet capacities ranging from 16 to 54, depending on the model.

Standard Rack Compatibility

Most PDUs are designed for 19-inch racks, which is the standard width for broadcast and IT equipment cabinets . They can be mounted either:

• Vertically (0U): These units run along the side of the rack and do not occupy standard rack space, allowing maximum device density. Vertical PDUs can provide up to 54 outlets .
• Horizontally (1U or 2U): These units occupy one or two rack units (U) in height and typically provide up to 16 outlets . Horizontal PDUs are installed at the front or rear of the rack.

Physical Dimensions

• Height: Horizontal PDUs are usually 1U (1.75 inches / 44.45 mm) or 2U (3.5 inches / 88.9 mm). Vertical PDUs are measured by the full height of the rack but do not consume U space .
• Width: Standard 19 inches (482.6 mm) to fit the rack rails .
• Depth: Varies by manufacturer, typically 2–4 inches (50–100 mm) for horizontal units; vertical units may extend along the rack depth to accommodate cabling .
• Input Cord Length: Commonly 3 meters (10 feet), with some models offering 1–1.5 meters for internal routing within the rack .

Outlet Configurations

• Basic PDUs: Provide reliable power distribution with high outlet density, up to 54 outlets for vertical units and 16 for horizontal units .
• Metered PDUs: Include monitoring of electrical parameters per phase or group, often with integrated displays .
• Switched PDUs: Allow remote control of individual outlets, with monitoring per outlet, group, or phase .

Additional Features

• Mounting Flexibility: Threaded inserts on the back and sides allow secure installation in various rack types .
• Cable Management: Some PDUs include cable tie–accepting outlets for secure cord retention .
• Rack Depth Considerations: Ensure the AC power source is within 2 meters (6.6 feet) of the rack for proper cord routing .

Summary

For broadcast transmission racks, rack-mounted PDUs are designed to maximize space and power distribution efficiency. Vertical 0U units are ideal for high-density racks, while horizontal 1U–2U units are suitable for standard rack-mounted equipment. Outlet counts, cord lengths, and monitoring capabilities vary by model, allowing customization for specific broadcast or IT environments .