High performance flat pack fan

Air is drawn in vertically, diverted through 90 degrees and blown out to the rear. During this process, an even air flow is drawn up over the hot boards, thereby cooling them effectively despite the very narrow spaces and high packing density of the individual plug-in boards.
Weighing just 1.70 kg, the fan unit is installed in a sheet steel housing and is available as a 48 V DC design (equivalent to 1.5 A rated current consumption at 100%). The noise level (unimpeded air flow) is a small 64 dB at full load (at 70 % speed: 59 dB).
The fans can be configured to work redundantly, allowing two or more fans to work at reduced speed in normal operation mode, thus reducing the noise level. In the event of a blower failing, the other fans adjust to full power and continue the cooling of the system.