Rittal SK 3240.718 Blue e+ RAL 9005 fan-and-filter unit, a 115 V single-phase enclosure cooling fan providing 218 m³/h airflow at 50 Hz and 191 m³/h at 60 Hz with a pleated filter, IP54 protection and NEMA Type 12 protection.
£131.27
The Rittal SK 3240.718 is a high-performance Blue e+ fan-and-filter unit designed to provide reliable filtered forced-air cooling for electrical enclosures, control panels and industrial automation systems. As part of the advanced Rittal Blue e+ enclosure climate control range, it uses diagonal fan technology for improved pressure stability and more consistent airflow, helping maintain suitable operating temperatures for sensitive electrical and electronic equipment.
The SK 3240.718 is supplied as a complete unit ready for installation with a high-performance pleated filter. Optimised detent hooks enable fast, tool-free mounting into the enclosure surface, while the opening mechanism incorporated into the louvred grille simplifies routine filter changes. The diagonal direction of airflow also promotes more even heat dissipation throughout the enclosure.
Operating from a 115 V single-phase, 50/60 Hz supply, the SK 3240.718 delivers an unimpeded airflow of 218 m³/h at 50 Hz and 191 m³/h at 60 Hz with the supplied pleated filter. Its 255 × 255 × 129 mm RAL 9005 black housing, IP54 protection and NEMA Type 12 rating make it a dependable cooling solution for industrial control cabinets and machinery enclosures.
Fan-and-filter units provide forced-air enclosure cooling by drawing cooler ambient air through a filter and circulating it across heat-generating electrical and electronic components. This continuous airflow helps reduce internal temperatures and thermal stress while supporting reliable operation of PLCs, drives, power supplies and other industrial control equipment.
The Rittal Blue e+ design uses diagonal fan technology to provide greater pressure stability and more constant ventilation throughout the enclosure. Combined with the high-performance pleated filter supplied with the SK 3240.718, this enables increased airflow while helping reduce the ingress of dust and airborne particles into industrial control cabinets.
| Manufacturer | Rittal |
|---|---|
| Series | SK Blue e+ |
| Model | SK 3240.718 |
| Product type | Fan-and-filter unit |
| Design | Wall-mounted |
| Air throughput with pleated filter at 50 Hz | 218 m³/h |
| Air throughput with pleated filter at 60 Hz | 191 m³/h |
| Air throughput with chopped-fibre filter at 50 Hz | 175 m³/h |
| Air throughput with chopped-fibre filter at 60 Hz | 157 m³/h |
| Air throughput with matching outlet filter and pleated filter at 50 Hz | 191 m³/h |
| Air throughput with matching outlet filter and pleated filter at 60 Hz | 161 m³/h |
| Air throughput with matching outlet filter and chopped-fibre filter at 50 Hz | 130 m³/h |
| Air throughput with matching outlet filter and chopped-fibre filter at 60 Hz | 112 m³/h |
| Rated operating voltage | 115 V AC |
| Input phases | 1-phase |
| Frequency | 50 / 60 Hz |
| Power consumption at 50 Hz | 35.5 W |
| Power consumption at 60 Hz | 38.2 W |
| Maximum rated current at 50 Hz | 0.41 A |
| Maximum rated current at 60 Hz | 0.42 A |
| Fan type | Diagonal fan, shaded-pole motor |
| Protection rating | IP54 with chopped-fibre or pleated filter |
| Enhanced protection | IP55 with pleated filter and absorber mat |
| Enhanced protection with hood | IP56 with chopped-fibre or pleated filter and hose-proof hood |
| NEMA protection | Type 12 with chopped-fibre or pleated filter |
| Enhanced NEMA protection | Type 3, 3R, 4 and 4X with chopped-fibre or pleated filter and hose-proof hood |
| Mounting type | Tool-free panel mounting |
| Colour | RAL 9005 |
| Material | Plastic |
| Dimensions (W × H × D) | 255 × 255 × 129 mm |
| Installation depth | 108 mm |
| Mounting cut-out | 224 × 224 mm |
| Operating temperature range | -30 °C to 55 °C |
| Storage temperature range | -30 °C to 70 °C |
| Noise level at 50 Hz | 48 dB(A) |
| Noise level at 60 Hz | 45 dB(A) |
| Recommended pre-fuse | 4 A miniature circuit-breaker or fuse |
| Electrical connection | Screwless spring terminal |
| Supply includes | Complete unit ready to install with pleated filter |
| Pack quantity | 1 pc |
| Net weight | 1.82 kg |
| EAN | 4028177998117 |
| Customs tariff number | 84145915 |
The SK 3240.718 provides filtered forced-air cooling for electrical enclosures, control cabinets and industrial automation systems, helping dissipate heat generated by electrical and electronic components.
With its supplied pleated filter, the unit provides an unimpeded airflow of 218 m³/h at 50 Hz and 191 m³/h at 60 Hz.
The Rittal SK 3240.718 operates from a 115 V single-phase AC supply at 50/60 Hz.
The unit provides IP54 and NEMA Type 12 protection with a chopped-fibre or pleated filter. Higher protection levels can be achieved with the appropriate filter configuration and hose-proof hood.
The SK 3240.718 has the same 115 V, 218/191 m³/h core performance but features a RAL 9005 black housing, making it suitable for dark-coloured enclosures and installations where a black external finish is preferred.
Rittal Blue e+ fan-and-filter units combine high airflow, pressure-stable diagonal fan technology and straightforward tool-free installation to provide dependable filtered cooling for industrial electrical enclosures and automation systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...