Rack cooling unit Rittal 3302.100 TopTherm 0.30 kW for server and network enclosures

Rittal 3302.100 TopTherm 0.30 kW rack cooling unit is a compact, cabinet-mounted cooling solution engineered for server and network enclosures. Designed to be fitted to the top of racks or inside cabinet panels, it provides localized cooling with a rated capacity of 0.30 kW to maintain stable internal temperatures, protect sensitive IT equipment from overheating and support continuous operation of servers, switches and telecom devices.

Advantages

The TopTherm unit delivers targeted cabinet-level cooling in a compact footprint, enabling temperature control without the need for full-room air conditioning. Its design supports retrofit installations and new enclosures alike, offering straightforward mounting and integration with standard server and network racks. The unit reduces the risk of thermal shutdowns and extends equipment lifetime by maintaining a consistent internal environment.

Suitable for

• Server cabinets and network racks in small to medium data closets
• Telecommunications and networking enclosures requiring localized cooling
• Retrofit situations where existing room cooling is insufficient
• Edge computing cabinets and remote sites with limited HVAC

When it may not be suitable

This unit provides 0.30 kW of cooling and is intended for localized, cabinet-level temperature control. It may not be sufficient for large data centres, high-density compute racks with very high heat loads, or rooms that require centralized climate control for multiple cabinets. For installations needing integrated humidity control or higher cooling capacities, a different cooling solution should be considered.

Key specifications

• Cooling capacity: 0.30 kW
• Mounting location: top-mounted for server and network enclosures
• Application: cabinet-level cooling for IT and telecom equipment
• Suitable installation types: retrofit and new cabinet installations
• Design focus: compact footprint for limited cabinet space

How to use

Install the TopTherm unit at the top opening of the server or network enclosure following the cabinet manufacturer’s cut-out and mounting instructions. Connect the unit to the appropriate electrical supply and configure basic controls or thermostatic settings as required by the environment. Position internal equipment and airflow baffles to promote efficient cold-air delivery to heat-generating components and ensure exhaust paths are unobstructed. Regularly inspect filters and airflow paths and follow the maintenance schedule recommended by the cabinet and cooling unit documentation.

What to consider before purchase

• Confirm the cabinet dimensions and top cut-out compatibility for top-mounted installation
• Verify the total heat load of installed equipment against the 0.30 kW cooling capacity
• Check electrical supply requirements and local installation regulations
• Consider maintenance access for filters and fans in the chosen cabinet location

Usage recommendations

Use the TopTherm unit for targeted cooling of single cabinets or small rack groups. Combine with proper cable management, blanking panels and directed airflow to maximise cooling efficiency. For higher-density racks or multiple adjacent cabinets, evaluate scalable cooling options or distributed cabinet cooling to ensure adequate thermal management.