Rittal SK 3383.540 is a 1 kW TopTherm Blue e roof-mounted enclosure cooling unit with 400 V two-phase operation, e-Comfort temperature control, integral condensate evaporation and IP34 external/IP54 internal circuit protection.
£2,387.57
The Rittal SK 3383.540 is an energy-efficient TopTherm Blue e roof-mounted cooling unit designed for dependable climate control of industrial electrical and electronic enclosures. As part of the proven Rittal Blue e cooling range, it combines efficient refrigeration technology, intelligent e-Comfort control and a compact roof-mounted format that preserves valuable enclosure side and door space.
The cooling unit incorporates an e-Comfort controller as standard for precise enclosure temperature regulation and monitoring. Its condenser features a hydrophobic RiNano coating to help reduce contamination, while integrated electrical condensate evaporation simplifies moisture management. The unit can also be connected to a Rittal IoT interface using a compatible Blue e IoT adaptor for enhanced monitoring and integration.
With a cooling output of 1 kW at L35/L35 and 50 Hz, a 400 V AC, two-phase, 50/60 Hz supply and dimensions of 597 × 417 × 475 mm (W × H × D), the SK 3383.540 provides compact and reliable enclosure cooling. Its sheet steel housing, IP34 external circuit and IP54 internal circuit make it well suited to industrial automation, machinery and electrical control applications.
Roof-mounted cooling units such as the Rittal SK 3383.540 remove excess heat generated by drives, PLCs, power electronics and other components inside industrial enclosures. The closed refrigeration circuit keeps the internal enclosure air separated from the surrounding environment, helping protect sensitive equipment while maintaining a controlled operating temperature.
The roof-mounted configuration is particularly useful where enclosure doors and side panels need to remain unobstructed. Combined with e-Comfort control, integrated condensate evaporation and optional IoT connectivity, the SK 3383.540 provides a practical and intelligent cooling solution for modern industrial automation and electrical systems.
| Manufacturer | Rittal |
|---|---|
| Series | TopTherm Blue e |
| Model | SK 3383.540 |
| Product type | Roof-mounted enclosure cooling unit |
| Design | Roof-mounted |
| Material | Sheet steel |
| Colour | RAL 7035 |
| Cooling output L35/L35 at 50 Hz | 1 kW |
| Cooling output L35/L35 at 60 Hz | 1.09 kW |
| Cooling output L35/L50 at 50 Hz | 0.8 kW |
| Cooling output L35/L50 at 60 Hz | 0.81 kW |
| Rated operating voltage | 400 V AC, 2-phase, 50/60 Hz |
| Power consumption L35/L35 at 50 Hz | 0.42 kW |
| Power consumption L35/L35 at 60 Hz | 0.56 kW |
| Power consumption L35/L50 at 50 Hz | 0.48 kW |
| Power consumption L35/L50 at 60 Hz | 0.65 kW |
| External circuit air throughput | 1600 m³/h |
| Internal circuit air throughput | 491 m³/h |
| Energy Efficiency Ratio L35/L35 at 50 Hz | 2.4 |
| Energy Efficiency Ratio L35/L35 at 60 Hz | 1.95 |
| Protection rating, external circuit | IP34 |
| Protection rating, internal circuit | IP54 |
| Temperature control | e-Comfort controller |
| Factory temperature setting | +35 °C |
| Operating temperature range | 10–55 °C |
| Maximum operating temperature at 60 Hz | 53 °C |
| Storage temperature range | -40–70 °C |
| Temperature setting range | 20–53 °C |
| Maximum permissible operating pressure | 28 bar |
| Electrical connection | Plug-in terminal strip |
| Pre-fuse | Transformer circuit-breaker, 6.3–10 A |
| Duty cycle | 100% |
| Condensate management | Integral electrical condensate evaporation |
| Condenser | Hydrophobic RiNano coating |
| Width | 597 mm |
| Height | 417 mm |
| Depth | 475 mm |
| Dimensions (W × H × D) | 597 × 417 × 475 mm |
| Net weight | 46.55 kg |
| Gross weight | 49 kg |
| Pack quantity | 1 pc |
| EAN | 4028177323223 |
| Customs tariff number | 84158200 |
| Approvals | UL + C-UL listed, UL + C-UL FTTA |
| Supply includes | Cooling unit with RiNano-coated condenser, integral electrical condensate evaporation, plug-in terminal strip, drilling template and assembly parts |
The Rittal SK 3383.540 is a TopTherm Blue e roof-mounted cooling unit designed to control the internal temperature of industrial electrical and electronic enclosures.
The unit provides 1 kW at L35/L35 and 50 Hz and 1.09 kW at L35/L35 and 60 Hz.
The SK 3383.540 operates from a 400 V AC, two-phase, 50/60 Hz supply.
The cooling unit has an IP34 external circuit and an IP54 internal circuit.
The SK 3383.540 measures 597 × 417 × 475 mm (W × H × D), including a depth of 475 mm.
Rittal TopTherm Blue e cooling units combine efficient refrigeration, intelligent e-Comfort temperature control, integrated condensate management and robust closed-circuit cooling for dependable thermal management of industrial electrical and electronic enclosures.
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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...