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Rittal SK 3305.540 is a 1.6 kW TopTherm Blue e wall-mounted sheet-steel enclosure cooling unit for 400/460 V three-phase 50/60 Hz industrial electrical and electronic applications.
£2,488.34
The Rittal SK 3305.540 is a high-performance Blue e wall-mounted enclosure cooling unit designed to provide dependable climate control for electrical and electronic equipment in industrial control cabinets. With a nominal cooling output of 1.6 kW, it provides active refrigeration-based cooling for enclosures where internal heat loads require controlled heat removal.
As part of the proven Rittal TopTherm Blue e series, the SK 3305.540 combines efficient cooling technology with electronic temperature regulation. Separate internal and external air circuits transfer heat away from installed components without directly exchanging enclosure air with the surrounding environment, helping maintain controlled conditions for sensitive automation and electrical equipment.
Designed for a 400/460 V AC, three-phase, 50/60 Hz supply, the SK 3305.540 features a robust sheet-steel housing and a wall-mounted format with a depth of 260 mm. Its external circuit provides IP34 protection, making this unit a practical cooling solution for industrial machinery, automation systems and electrical control applications.
Variable speed drives, PLCs, power supplies, contactors and other industrial electronic components can generate substantial heat during continuous operation. If this heat remains trapped inside the enclosure, elevated temperatures may affect equipment performance and service life. Active enclosure cooling provides a controlled method of transferring this heat to the surrounding environment.
The Rittal SK 3305.540 combines 1.6 kW nominal cooling capacity with a three-phase electrical supply suited to compatible industrial installations. Its separated air circuits and wall-mounted construction make it suitable for applications requiring reliable thermal management without relying on direct ambient-air ventilation through the enclosure.
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| Device Type | Wall / door-mounted cooling unit | |
|---|---|---|
| Mounting Type | Wall / door | |
| Housing Material | Steel | |
| Coil / Supply Voltage | 460 V AC, 3-phase | |
| Voltage | 460 V AC | |
| Cooling Output (W) | 1600 W | |
| Manufacturer | Rittal | |
| Series | TopTherm Blue e | |
| Model | SK 3305.540 | |
| Product type | Wall-mounted enclosure cooling unit | |
| Mounting type | Wall-mounted | |
| Nominal cooling output | 1.6 kW | |
| Rated operating voltage at 50 Hz | 400 V AC | |
| Rated operating voltage at 60 Hz | 460 V AC | |
| Phases | 3~ | |
| Frequency | 50/60 Hz | |
| External circuit protection | IP34 | |
| Depth | 260 mm | |
| Cooling principle | Compressor-based enclosure cooling | |
| Air circuit design | Separate internal and external circuits | |
| Temperature control | Electronic controller |
The SK 3305.540 is a wall-mounted cooling unit for industrial electrical and electronic enclosures, designed to remove internally generated heat and maintain suitable operating temperatures for installed equipment.
The Rittal SK 3305.540 has a nominal cooling output of 1.6 kW, making it suitable for industrial control enclosures with significant internal heat loads.
The unit is designed for a 400 V AC three-phase supply at 50 Hz or a 460 V AC three-phase supply at 60 Hz.
The external air circuit of the SK 3305.540 has an IP34 protection rating.
The wall-mounted cooling unit has a depth of 260 mm, providing a practical format for industrial enclosure climate control installations.
Rittal TopTherm Blue e cooling units provide reliable thermal management for industrial electrical and electronic systems, with the SK 3305.540 delivering 1.6 kW wall-mounted cooling for compatible 400/460 V three-phase applications.
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