Rittal Extend modular safe with direct free cooling

The Extend modular safe with direct free cooling is designed to protect IT applications from physical threats. The safe protects sensitive IT hardware from fire, smoke, fire extinguisher water, dust and unauthorised access. In addition to the servers and storage, it comes with components such as system controls, busbars, fire alarm and extinguisher systems. It is suitable for medium-sized users.

When direct free cooling is employed inside, the horizontal airflow and the separation between the cold and hot side in the safe is ensured. The cooled air is guided in front of the 482.6 mm level of the IT system. In cooler regions, cooling by outside air alone is sufficient for a predefined temperature range and can save energy. When outside air temperatures are low, the warm exhaust air is mixed with the incoming supply air, so that suitable process conditions are established for the IT. At higher external temperatures, the device cools the outside air to the desired air inlet temperature. If the outside temperature is warmer than the exhaust air, cooling takes place in air recirculation mode.

The cooling unit is installed between the side panel of the modular safe and the outer wall on site. The arrangement between the safe and the outer wall supports the cold/hot aisle containment principle in the safe, which may increase cooling efficiency. Air exchange with the environment is via fire dampers that close immediately if smoke is detected, protecting the unit from fire.