Rittal SK 3187.935 Built-in cooling unit 2600 W, Grey, Steel housing, 110–240/380–480 V, 50/60 Hz

The Rittal SK 3187.935 built-in cooling unit provides 2600 W cooling capacity in a grey steel housing designed for installation in electrical and industrial enclosures. Compatible with a wide input voltage range (110–240 V and 380–480 V) and rated for both 50 Hz and 60 Hz mains frequencies, this unit is intended to maintain stable internal cabinet temperatures and protect sensitive components from overheating. The compact built-in form factor allows integration into cabinets where space and environmental protection are required.

Advantages

This cooling unit delivers a high cooling capacity of 2600 W while supporting dual voltage ranges, making it adaptable to different power infrastructures. The steel housing offers mechanical robustness and protection in industrial environments. Built-in mounting reduces the need for external piping or standalone cooling systems and helps maintain a controlled cabinet climate to extend the life and reliability of electronics.

Suitable for (tasks / use cases)

• Climate control for electrical control cabinets and switchgear
• Cooling of industrial enclosures housing PLCs, drives, and power electronics
• Applications requiring a built-in cooling solution with robust metal housing
• Sites with variable mains supply where 50 Hz or 60 Hz operation is needed

When it may not be suitable

This built-in cooling unit is intended specifically for enclosure integration; it may not be suitable for cooling large rooms or open-area spaces where air distribution and circulation differ from enclosed cabinets. It is also not intended as a replacement for process cooling systems that require fluid chillers or temperature control with tight setpoint tolerances beyond standard cabinet climate control.

Key specifications

• Cooling capacity: 2600 W
• Housing material: steel
• Housing color: grey
• Mounting type: built-in (for enclosure integration)
• Input voltage compatibility: 110–240 V and 380–480 V
• Frequency: 50/60 Hz

How to use

Install the unit into a compatible enclosure opening according to the enclosure and unit manufacturer’s mounting instructions, ensuring proper sealing and mechanical fixation. Connect the electrical supply matching the available mains voltage and frequency, and follow applicable electrical safety rules and local regulations. Set and monitor the cabinet temperature using the enclosure’s thermal management controls and verify airflow paths inside the cabinet are unobstructed to allow effective heat extraction.

What to consider before purchase

• Verify the enclosure cutout and internal space accommodate the built-in unit and its clearance requirements
• Confirm required cooling capacity (2600 W) is adequate for the heat load of installed components
• Ensure the available mains voltage and frequency match one of the supported ranges (110–240 V or 380–480 V at 50/60 Hz)
• Check ingress protection and environmental requirements for the intended installation site

Usage recommendations

For reliable operation, maintain clear airflow within the cabinet, perform regular filter and condenser maintenance, and monitor cabinet temperatures during peak loads. When integrating with other enclosure equipment, plan cable routes and ventilation openings to prevent recirculation of warm exhaust air into cooled compartments.