Cooling unit Rittal SK 3188.640, built-in display, 4000 W, 380–480 V, 50/60 Hz, steel housing, grey

The Rittal SK 3188.640 cooling unit with built-in display is a compact climate-control device for electrical enclosures and control cabinets. Designed to provide stable temperature management, it delivers 4000 W cooling capacity and is intended for industrial applications that require consistent heat dissipation and straightforward monitoring. The device is supplied for 380–480 V, 50/60 Hz operation and is mounted in a steel housing finished in grey to match typical rack and cabinet environments.

Advantages

The unit combines a high cooling output with integrated temperature display for quick visual checks of enclosure conditions. Its steel housing offers mechanical robustness and compatibility with standard industrial mounting, while the wide input voltage range and both 50 Hz and 60 Hz support make it suitable for varying electrical infrastructures. The design emphasizes reliable performance for continuous operation in demanding environments.

Suitable for

• Cooling electrical enclosures and control panels in industrial settings
• Heat dissipation for power electronics, drives, and PLC cabinets
• Applications requiring built-in temperature readout and control
• Installations with 380–480 V mains and mixed 50/60 Hz frequency

When it may not be suitable

This unit is intended for cabinet and enclosure cooling and may be unnecessary for small, low-heat equipment or consumer electronics that do not generate significant internal heat. It is not designed as a room air conditioner and should not be used to condition open indoor spaces. For systems with cooling requirements below the rated capacity, a smaller unit would be more energy-efficient.

Key specifications

• Cooling capacity: 4000 W (nominal)
• Supply voltage range: 380–480 V
• Frequency: 50/60 Hz
• Housing material: steel
• Housing color/finish: grey
• Integrated display for temperature monitoring
• Mounting type: enclosure/wall-mount compatible

How to use

Mount the cooling unit on the enclosure or cabinet according to the manufacturer's installation guidelines, ensuring correct airflow paths and secure mechanical attachment. Connect the electrical supply matching the specified voltage and frequency, and configure the display and control settings to the target enclosure temperature. Regularly check the built-in display to verify operating temperature and inspect the unit for dust or debris that could impede heat transfer.

What to consider before purchase

• Confirm your enclosure's heat load and compare it to the unit's 4000 W cooling capacity
• Verify mains voltage (380–480 V) and frequency (50/60 Hz) compatibility on site
• Check available mounting space and housing material requirements for your cabinet
• Plan for routine maintenance access to filters and heat-exchange surfaces

Usage recommendations

For reliable operation, ensure adequate enclosure sealing to direct airflow through the cooling unit, schedule periodic cleaning of air paths and filters, and monitor the built-in display to maintain target temperatures. When deploying multiple units, distribute them to optimize airflow and avoid short-circuiting intake and exhaust streams.