Rittal rack cooling unit 3332.540 – steel, IP34/IP54, for 500 mm width racks

Rittal 3332.540 is a wall-mounted TopTherm Blue e cooling unit designed for efficient cabinet temperature control. The unit is built from steel, finished in grey, and integrates an e-Comfort controller, RiNano coating on the condenser, and electrical condensate evaporation as standard. It is intended for mounting on racks or enclosures with a compact footprint (width 500 mm, depth 340 mm, height 1580 mm) and offers cooling output options in the 2,000 to 4,000 W range.

Advantages

The unit provides energy-efficient cooling in compact, wall-mounted form factor with an integrated e-Comfort controller for reliable temperature regulation. The RiNano condenser coating improves corrosion resistance and longevity, while electrical condensate evaporation removes the need for condensate drains. The steel construction and IP34/IP54 certifications ensure robust protection for industrial and IT environments.

Suitable for

• Cooling server racks and network cabinets in small to medium IT installations
• Climatising electrical or control cabinets in industrial environments
• Enclosures requiring wall-mounted cooling with compact installation footprint

When it may not be suitable

This wall-mounted cooling unit may not be suitable for very large data centres or enclosures requiring cooling capacities above 4,000 W. It is also not intended for applications where different mounting types (e.g., floor-standing or free-standing cooling units) are required.

Key specifications

• Cooling capacity range: 2,000–4,000 W
• Material: steel
• Product colour: grey
• IP protection classes: IP34, IP54
• Dimensions (W×D×H): 500 × 340 × 1580 mm
• Integrated controller: e-Comfort
• Condenser protection: RiNano coating
• Condensate management: electrical condensate evaporation

How to use

Mount the cooling unit on the enclosure or rack according to the manufacturer's wall-mounting instructions and ensure secure attachment to support the unit's weight. Connect the unit to appropriate power and control wiring, configure the e-Comfort controller to the required temperature set points, and verify that condensate evaporation functions correctly. Regularly check airflow paths and filters and perform periodic maintenance as specified by the manufacturer to maintain performance.

What to consider before purchase

• Confirm required cooling capacity for the specific enclosure and select a model within the 2,000–4,000 W range
• Verify that wall-mounting and the unit dimensions (500 × 340 × 1580 mm) fit the intended installation location
• Check IP protection requirements for the environment (IP34/IP54)
• Ensure compatibility with existing electrical supply and control systems

Usage recommendations

Position the unit to allow unobstructed airflow to and from the enclosure, set conservative temperature margins through the e-Comfort controller, and schedule regular service checks to monitor condenser condition and verify condensate evaporation performance.