Cooling Unit Rittal SK 3210500, 120 W input, 0.1111111111 l/s airflow, stainless steel, grey

Rittal SK 3210500 is a stainless-steel cooling unit for enclosure thermal management, designed for roof mounting on electrical cabinets and industrial enclosures. The unit accepts 230 V / 50–60 Hz supply and has an electrical input power of 120 W. With an airflow rate of 0.1111111111 l/s and cooling capacity options up to 4.0 kW for the air/water heat exchanger family, this model is intended to remove excess heat from control cabinets while providing corrosion-resistant construction in a grey finish and an integrated display for status monitoring.

Advantages

The stainless-steel construction provides enhanced corrosion resistance for harsh industrial environments and outdoor use. Low electrical input power minimizes local energy draw while the design delivers effective heat rejection when paired with a compatible water circuit. The roof-mounted configuration allows straightforward installation on enclosure tops and flexible water connection options simplify integration into existing cooling systems. The integrated display gives clear feedback for operation and basic diagnostics.

Suitable for

• Cooling electrical control cabinets and industrial enclosures mounted outdoors or in corrosive environments
• Applications requiring a roof-mounted air/water heat exchanger with moderate cooling capacity
• Systems where a compact, stainless-steel unit and an integrated display are preferred for monitoring

When it may not be suitable

This unit is intended to operate as part of an air/water heat exchange arrangement and requires a compatible water circuit and mounting space on the enclosure roof; it is not a self-contained air conditioner that provides standalone refrigeration without an external water loop. For very small enclosures with negligible heat load or for installations that cannot accommodate roof mounting or water connections, this solution may be impractical.

Key specifications

• Construction material: stainless steel
• Electrical input power: 120 W
• Supply voltage and frequency: 230 V / 50–60 Hz
• Airflow: 0.1111111111 l/s
• Cooling capacity (model family range): up to 4.0 kW (air/water heat exchanger roof-mounted)
• Protection class: IP55 (as standard for the air/water heat exchanger roof-mounted family)
• Housing colour: grey
• Display: integrated status display

How to use

Mount the cooling unit securely on the top surface of the enclosure following the manufacturer's roof-mounting instructions and ensure a watertight seal around the penetration points. Connect the unit to a compatible chilled water circuit using the available flexible water connection options and verify correct flow and temperature settings for the heat exchanger. Supply the unit with 230 V / 50–60 Hz power, configure any display or control parameters as required, and perform an initial operational check to confirm airflow and heat rejection. Regularly inspect water connections, seals and the unit housing for signs of leakage or corrosion.

What to consider before purchase

• Confirm available roof mounting space and mechanical compatibility with the enclosure top
• Ensure a compatible chilled water circuit and sufficient water flow for the required cooling capacity
• Verify that IP55 protection and stainless-steel construction meet environmental exposure needs
• Check that 230 V / 50–60 Hz mains supply is available at the installation site

Usage recommendations

Use with a properly sized water-side cooling source and routine maintenance of water connections and seals. Monitor the integrated display for operational status and schedule periodic inspections to maintain reliable thermal performance in harsh environments.