External fans Typ R-RBK IP66 to Mb 1R IEC frame size 250 – 355 (noise limited )
This forced ventilation version is supplied with a cast-iron motor. Enclosure is IP 66. These units have a very low noise level but high air volume. The units are made in Germany.
These external fans are available in IEC frame sizes 250 to 355 and available with options such as special voltages, tropical protection, Ptc thermisters, dust-proof bearings, space-heaters and many more.
Multivoltage (+/ – 5 %)
3-phase 220-290V D 50Hz
3-phase 220-333V D 60Hz
3-phase 380-500V Y 50Hz
3-phase 380-575V Y 60Hz
plus special voltages
Equipped with special fans, these units provide a high air volume at low noise level. Cowl ( shroud ) and adapter are supplied in 2,5 mm sheet metal, primed grey. Paintystems and different colours are availabe upon request.