Rittal TopTherm SK3140.500 is a 220–240 V AC roof-mounted EC enclosure fan providing up to 1,069 m³/h airflow for efficient industrial cabinet ventilation.
£649.71
The Rittal TopTherm SK3140.500 is an energy-efficient roof-mounted enclosure fan with EC technology designed to provide powerful ventilation and heat dissipation for industrial electrical and electronic enclosures. As part of Rittal's proven climate control range, it combines high airflow performance with compact installation and dependable operation.
The SK3140.500 uses a radial EC motor and an optimised air-routing design to minimise pressure losses and improve ventilation efficiency. It is supplied as a complete ready-to-install unit with a pleated filter and includes a control interface with tacho signal output for fan monitoring and control in modern industrial installations.
With an unimpeded airflow of up to 1,069 m³/h without filter mats and 976 m³/h with the supplied pleated filter, the SK3140.500 is suitable for larger control cabinets requiring effective removal of internally generated heat. The unit operates from a 220–240 V AC single-phase, 50/60 Hz supply and measures 400 × 133 × 400 mm.
Roof-mounted fans such as the Rittal SK3140.500 remove warm air from the upper area of an enclosure, where heat naturally accumulates. Continuous forced-air ventilation helps maintain suitable internal operating temperatures for sensitive electrical, electronic and automation components.
The EC motor technology used in the SK3140.500 provides efficient operation while supporting fan monitoring through the integrated control interface and tacho output. Its roof-mounted format is particularly useful where space on enclosure doors or side panels is limited.
| Manufacturer | Rittal |
|---|---|
| Series | TopTherm / SK |
| Model | SK3140.500 |
| Product type | Roof-mounted enclosure fan |
| Fan type | Radial EC fan |
| Airflow without filter mats | 1,069 m³/h at 50/60 Hz |
| Airflow with pleated filter | 976 m³/h at 50/60 Hz |
| Rated operating voltage | 220–240 V AC |
| Input phases | Single phase |
| Frequency | 50 / 60 Hz |
| Power consumption | 129 W |
| Maximum rated current | 1 A |
| Protection rating | IP21 without filter mat / IP54 with pleated filter |
| NEMA protection | NEMA 12 |
| Dimensions (W × H × D) | 400 × 133 × 400 mm |
| Mounting cut-out | 258 × 258 mm |
| Installation depth | 34.6 mm |
| Operating temperature | -20 to 55 °C |
| Storage temperature | -40 to 70 °C |
| Noise level | 60 dB(A) |
| Fan service life | 84,000 h at 40 °C |
| Colour | RAL 7035 |
| Net weight | 5.6 kg |
The SK3140.500 is used to remove excess heat from industrial electrical and electronic enclosures by providing high-volume forced-air ventilation through the enclosure roof.
The fan provides up to 1,069 m³/h of unimpeded airflow without filter mats and approximately 976 m³/h with the supplied pleated filter.
The SK3140.500 operates from a 220–240 V AC single-phase supply at 50/60 Hz.
The unit is rated IP21 without a filter mat and achieves IP54 when fitted with the supplied pleated filter.
Yes. The EC version includes a control interface with an integrated tacho signal output, allowing fan speed and operating status to be monitored.
Rittal enclosure climate control products are widely used by machine builders, panel builders and industrial engineers to maintain reliable operating temperatures and protect sensitive electrical equipment in demanding environments.
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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...