Rittal SK3387.640 TopTherm Blue e roof-mounted stainless steel enclosure cooling unit with 3.8 kW cooling capacity, 400/460 V three-phase supply, e-Comfort controller and electrical condensate evaporation for industrial enclosure climate control.
£4,579.64
The Rittal SK3387.640 is a high-performance TopTherm Blue e roof-mounted enclosure cooling unit designed to provide reliable climate control for electrical and industrial control enclosures. As part of the proven Rittal Blue e cooling unit series, it combines efficient refrigeration technology with an integrated e-Comfort controller and electrical condensate evaporation.
Designed for demanding industrial environments, the SK3387.640 features a robust stainless steel 1.4301 (AISI 304) enclosure that provides enhanced durability and corrosion resistance. Its roof-mounted configuration preserves valuable enclosure side-wall space, while the hydrophobic RiNano-coated condenser supports efficient operation and reduced maintenance requirements.
With a total cooling output of 3.8 kW at 50 Hz and up to 4 kW at 60 Hz, together with a 400 V three-phase 50 Hz or 460 V three-phase 60 Hz supply, the SK3387.640 is well suited to industrial control panels, automation systems and machinery containing heat-generating electrical and electronic components.
Industrial electrical enclosures often contain PLCs, variable frequency drives, power supplies and other components that generate significant heat during operation. The Rittal SK3387.640 removes excess heat from the enclosure and helps maintain controlled internal temperatures, protecting sensitive equipment from thermal stress and supporting dependable machine operation.
The Blue e design combines powerful refrigeration with intelligent temperature control, electrical condensate evaporation and separate internal and external air circuits. Its stainless steel construction makes the SK3387.640 particularly suitable for industrial installations where durability and corrosion resistance are important, while roof mounting keeps enclosure side walls available for other equipment and accessories.
| Manufacturer | Rittal |
|---|---|
| Series | TopTherm Blue e |
| Model | SK3387.640 |
| Article number | SK 3387.640 |
| Product type | Roof-mounted enclosure cooling unit |
| Mounting type | Roof-mounted |
| Material | Stainless steel 1.4301 (AISI 304) |
| Colour | RAL 9007 |
| Total cooling output L35 L35 / 50 Hz | 3.8 kW |
| Total cooling output L35 L35 / 60 Hz | 4 kW |
| Total cooling output L35 L50 / 50 Hz | 3.05 kW |
| Total cooling output L35 L50 / 60 Hz | 3.3 kW |
| Rated operating voltage | 400 V, 3~, 50 Hz / 460 V, 3~, 60 Hz |
| External air throughput | 3,870 m³/h |
| Internal air throughput | 1,420 m³/h |
| Protection rating, external circuit | IP34 |
| Protection rating, internal circuit | IP54 |
| Temperature control | e-Comfort controller |
| Condensate management | Integral electrical condensate evaporation |
| Condenser | Hydrophobic RiNano coating |
| Electrical connection | Plug-in terminal strip |
| Dimensions (W × H × D) | 796 × 470 × 580 mm |
The SK3387.640 is a roof-mounted cooling unit designed to remove heat from industrial electrical and control enclosures, helping maintain suitable operating temperatures for sensitive electrical and electronic equipment.
The unit provides a total cooling output of 3.8 kW at L35 L35 / 50 Hz and 4 kW at 60 Hz.
The cooling unit is designed for a 400 V three-phase 50 Hz supply or a 460 V three-phase 60 Hz supply.
The SK3387.640 provides IP34 protection for the external circuit and IP54 protection for the internal circuit to IEC 60529.
The cooling unit is manufactured from stainless steel 1.4301 (AISI 304), providing a durable and corrosion-resistant enclosure for demanding industrial applications.
Rittal TopTherm Blue e cooling units are engineered for dependable enclosure climate control, combining efficient cooling, intelligent temperature regulation and practical installation features for industrial automation and electrical applications.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...