Rittal 3184837 SK Blue e+ wall-mounted cooling unit 1000 W sheet metal content_copy

The Rittal SK 3184837 is a wall-mounted cooling unit from the Blue e+ Dynamic series, specifically designed for dynamic and marine applications. It is used for climate control of enclosures and electronic devices in environments with high vibration loads, such as on ships, harbor cranes, logistics systems, or airport conveyor systems. The unit has been tested according to DNV-CG-0339, confirming its suitability for use in moving and vibrating environments. The wall-mounted design allows for flexible installation on the enclosure wall, while partial installation is not possible. The enclosure is made of sheet steel and painted in RAL 7035, providing a robust and durable surface.

Applications include marine technology, such as enclosures in ship engine rooms, as well as industrial installations with high mechanical stress. The design ensures reliable operation even under strong vibration and movement. The cooling capacity is 1.0 kW at operating voltages of 110–240 V, 1~, 50/60 Hz, or 380–480 V, 3~, 50/60 Hz. The total cooling capacity according to DIN EN 14511 varies depending on operating conditions: 1.0 kW at L35 L35/50 Hz and L35 L35/60 Hz, and 0.67 kW at L35 L50/50 Hz and L35 L50/60 Hz. The rated power is 0.7 kW, with the nominal power varying between 0.28 kW and 0.37 kW depending on the operating mode.

Functions and equipment in detail include a condenser with hydrophobic RiNano coating, which reduces condensation formation and minimizes maintenance. The unit is pre-wired with a plug-in terminal block, simplifying installation. The delivery includes mounting materials to ensure secure installation.

Technology explained simply shows that the unit features an e+ controller pre-set at the factory to +35 °C. The adjustable range is between 20 °C and 50 °C, allowing temperature adjustment according to requirements. The airflow rate is 895 m³/h in the external circuit and 700 m³/h in the internal circuit, ensuring efficient air circulation within the enclosure. The coefficient of performance (EER) is 3.57 at both 50 Hz and 60 Hz, indicating high energy efficiency. The unit uses refrigerant R-513A with a quantity of 0.76 kg, a Global Warming Potential (GWP) of 631, and a CO₂ equivalent of 0.48 t. The operating temperature range is from –20 °C to 60 °C, with the refrigerant circuit actively operating from 3 °C to 60 °C. The protection rating IP 55 for the internal circuit protects against dust and splashing water, making it suitable for outdoor use as well.

Compatibility and accessories include the option to connect the unit to the IoT Interface (part number 3124.300) for remote monitoring and control of device data, statuses, and system messages. This increases machine availability and process safety. Additional components can be added as needed.

Installation and mounting require a cutout with a width of 383 mm and a height of 929 mm. The unit dimensions are 400 mm (width) × 950 mm (height) × 310 mm (depth). Mounting is done on the enclosure wall, and the unit is delivered with mounting materials. The pre-wired connection with a plug-in terminal block simplifies electrical connections. The permissible operating voltage includes both single-phase and three-phase variants, with tolerances of 110 V (–10 %) to 240 V (+10 %) and 380 V (–10 %) to 480 V (+6 %). To comply with EMC requirements according to DNV-CG-0339, an additional choke (SK 3124.010) is required for certain voltages.

Operational advantages include high reliability, low maintenance requirements, and quick readiness for use. The unit is easy to plan, operate, and install. The integrated condensate evaporation reduces maintenance effort, and the hydrophobic RiNano coating prevents deposits. The remote monitoring capability via the IoT interface enables proactive operational monitoring. The storage temperature range of –40 °C to 70 °C ensures storage capability under extreme conditions. The permissible operating pressure is 24 bar, ensuring mechanical stability under pressure load.

Additional notes concern the need for appropriate surge protection: for operating voltages below 460 V (3~), a surge protector with Uc 275 V, Imax 40 kA, In 20 kA, Up 1.5 kV is required. For voltages above 460 V (3~), Uc 385 V, Imax 40 kA, In 20 kA, Up 1.5 kV applies. These measures protect the unit from transient voltage surges.

Energy efficiency is highlighted by the high seasonal energy efficiency ratio (SEER) > 6.2, ensuring long-term energy savings and low operating costs. The unit is therefore suitable for users who value sustainable and efficient climate control solutions.

In summary, the Rittal SK 3184837 offers a robust, reliable, and low-maintenance climate control solution for dynamic and marine applications. The combination of high efficiency, easy installation, and integrated features such as condensate evaporation and remote monitoring makes it an ideal choice for demanding industrial applications.