Internal and external dimensions of outdoor communication cabinet

Outdoor communication cabinets typically have external dimensions ranging from 650×650×2000 mm to 900×900×2100 mm, with internal rack space from 9U to 46U depending on the model.

Typical Dimensions

External Dimensions:

• Smaller cabinets: 650 mm width × 650 mm depth × 2000 mm height
• Larger cabinets: 900 mm width × 900 mm depth × 2100 mm height Internal Dimensions / Rack Space:
• Internal space can range from 9U to 46U, depending on the cabinet height and design
• Cabinets are usually equipped with 19-inch mounting profiles for standard telecom and IT equipment

Construction and Material

• Made of galvanized steel, typically 1.2–2.0 mm thick
• Some models feature single-wall or double-wall construction with thermal insulation (20–40 mm PEF) to protect equipment from temperature fluctuations
• Designed to meet IP55/IP66 ingress protection, ensuring resistance to dust and water

Additional Features

• Cooling systems can be integrated, with capacities ranging from 300 W to 3000 W depending on cabinet size and heat load
• Security features include three-point locks, embedded doors, and support for additional padlocks
• Ventilation and cable management are incorporated to maintain optimal performance and organization of installed equipment

Summary

When selecting an outdoor communication cabinet, consider both external dimensions for site placement and internal rack space for equipment installation. Smaller cabinets are suitable for compact installations, while larger cabinets provide more internal space for high-density telecom or IT equipment. Material, insulation, cooling, and security features are also critical for long-term reliability in outdoor environments .