Cooling Unit Rittal SK 3328544 with Built-in Display, Input 1300 W, 400/460 V, 50/60 Hz, Cooling Capacity 2250 W, Grey

The Rittal SK 3328544 cooling unit with built-in display is an industrial wall-mounted climate control device designed for electrical enclosures and control cabinets. It provides a rated cooling capacity of 2250 W while drawing 1300 W input power at supply voltages of 400/460 V and 50/60 Hz. The unit is finished in grey and constructed from steel/stainless steel to meet the mechanical requirements of cabinet installations. The integrated display and the e-Comfort controller enable local monitoring and adjustment of cooling parameters.

Advantages

This cooling unit combines a high cooling capacity with a compact wall-mounted design suitable for industrial cabinets. The built-in display and e-Comfort controller provide clear local readout and straightforward control of temperature and operation modes. The device includes electrical condensate evaporation and meets protection class NEMA 4X, making it appropriate for conditions where splash and washdown resistance are required. The unit is compatible with an IoT interface via the Blue e IoT adapter for remote connectivity on models with the e-Comfort controller.

Suitable for

• Climate control of electrical enclosures and control cabinets in industrial environments
• Wall-mounted installations where space-saving cooling is required
• Applications requiring NEMA 4X protection for splash- and washdown-resistant operation
• Systems where local display and controller access are needed for monitoring and adjustment

When it may not be suitable

This unit may not be suitable for small enclosures with very low heat loads where the 2250 W cooling capacity would be excessive. It is also not appropriate for installations requiring voltages or frequencies outside the specified 400/460 V, 50/60 Hz range. Environments demanding corrosion-resistant materials beyond the supplied steel/stainless steel construction or specific hygienic certifications should verify material compatibility before selection.

Key specifications

• Cooling capacity: 2250 W
• Input power: 1300 W
• Supply voltage and frequency: 400/460 V, 50/60 Hz
• Mounting: wall-mounted
• Controller: integrated e-Comfort controller with built-in display
• Condensate management: electrical condensate evaporation
• Protection class: NEMA 4X
• Materials: steel/stainless steel housing

How to use

Mount the cooling unit on the cabinet wall according to the manufacturer’s installation instructions, ensuring correct mechanical fastening and appropriate ventilation clearances. Connect the unit to the specified supply voltage (400/460 V, 50/60 Hz) and follow electrical safety procedures. Use the built-in display and e-Comfort controller to set target temperatures and operating modes. For condensate handling no external drain is required when electrical condensate evaporation is used; verify local regulations and application needs. If remote monitoring is required, fit the Blue e IoT adapter to enable IoT communication on compatible models.

What to consider before purchase

• Confirm that the cabinet heat load and required cooling capacity match the unit’s 2250 W rating
• Verify supply voltage and frequency compatibility (400/460 V, 50/60 Hz)
• Ensure wall-mounting dimensions and clearance fit the intended cabinet location
• Check NEMA 4X protection is adequate for the environmental conditions (splash/washdown)
• Assess whether the steel/stainless steel housing meets corrosion and hygiene requirements
• Decide if IoT connectivity is required and procure the Blue e IoT adapter if needed

Usage recommendations

Operate the unit within the rated electrical supply and cooling load; regularly check filters, airflow pathways and the display settings. Schedule periodic maintenance according to the manufacturer’s guidance to preserve cooling performance and NEMA 4X integrity.