Built-in display cooling unit Rittal SK 3189.640 — 5500 W, 380–480 V, 50/60 Hz, Steel housing (Grey)

The Rittal SK 3189.640 is a built-in display cooling unit designed for climate control of industrial enclosures and control cabinets. Offering 5500 W cooling capacity and operating on a 380–480 V, 50/60 Hz supply, this unit features a durable grey steel housing and an integrated display for local monitoring and configuration. It is intended to maintain stable internal temperatures, protect sensitive electronics from overheating and support continuous operation in demanding industrial environments.

Advantages

The unit provides high cooling capacity suitable for medium to large electrical cabinets while preserving a compact installation footprint. Its integrated display allows straightforward monitoring and adjustment of temperature and operating parameters at the enclosure. Robust steel construction offers mechanical protection and contributes to long-term reliability in industrial settings. The product supports three-phase voltage ranges common in industrial power systems, enabling compatibility with standard installations.

Suitable for

• Climate control of industrial electrical enclosures and control panels
• Cooling of drive cabinets, PLC racks and power electronics
• Environments requiring continuous temperature regulation to protect components
• Applications where an integrated display for local monitoring is desired

When it may not be suitable

This cooling unit is intended for built-in installation in enclosures and may not be appropriate for free-standing room cooling or non-enclosed equipment. It requires a compatible three-phase power supply (380–480 V, 50/60 Hz); locations with only single-phase supply or significantly different voltage ranges will need a different solution or additional power infrastructure. For applications demanding lower noise levels or specific corrosion resistance, alternative models with different materials or acoustic ratings should be considered.

Key specifications

• Cooling capacity: 5500 W (nominal)
• Supply voltage: 380–480 V, 50/60 Hz
• Housing material: Steel, grey finish
• Installation type: Built-in / panel-mounted
• Interface: Integrated local display for monitoring and configuration
• Application area: Industrial enclosures, control cabinets

How to use

Install the cooling unit into a compatible enclosure cut-out following enclosure manufacturer guidelines and applicable electrical standards. Connect the unit to the three-phase mains (380–480 V, 50/60 Hz) using appropriate wiring and protective devices sized to local regulations. Use the integrated display to set the target temperature, configure alarms or operating modes, and monitor operating status. Regularly inspect air inlets and outlets for dust buildup and perform maintenance such as filter replacement and cleaning according to the manufacturer's service intervals to maintain performance.

What to consider before purchase

• Verify that your enclosure has appropriate cut-out dimensions and mounting provisions for a built-in cooling unit.
• Confirm availability of a compatible three-phase power supply (380–480 V, 50/60 Hz) and required protective devices.
• Check required cooling capacity for heat-generating components in the enclosure to ensure 5500 W is sufficient.
• Assess environmental conditions (dust, humidity, corrosive atmospheres) to determine if additional protection or alternative materials are needed.

Usage recommendations

Place the unit where airflow paths within the enclosure are unobstructed, maintain recommended clearances around inlets and outlets, and schedule periodic maintenance (filter checks, cleaning) to achieve reliable temperature control and prolong service life.