Download Rittal SK 3361. series Specifications

Fan-and-filter units
Potential applications/selection critiera
Practical example of a fan-and-filter unit
Fan-and-filter units are used in virtually all segments of industry: from the smallest enclosures, to command panels and
consoles, through to large and bayed enclosure systems.
They are the easiest method of protecting against overheating and hotspots.
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The basic pre-requisite for their use is that the ambient temperature must be significantly below the enclosure internal
temperature.
A wide range of control units such as thermostat, hygrostat
and speed control for noise minimisation extend the applications e.g. to include the office sector and laboratories.
EMC fans meet the requirements for increased RF shielding.
Particularly when using fan-and-filter units in conjunction with
PC enclosures or monitor panels, DC variants are used which
provide effective protection from interference.
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2
1
3
1 Small enclosure
2 Command panel
3 Console
8.2
4 Bayed enclosure/large enclosures
5 PC enclosure
Sealed and shielded
Also available with EMC
shielding
All fan-and-filter units and
outlet filters are alternatively
available with EMC shielding. The required conductive connection is achieved
via a metallic coating on the
fan-and-filter unit housing
and a special sealing frame.
Protection functions
The membranes of the fan
grille in the form of a rain
canopy provide exceptional
protection against the
ingress of splashed water
and dust.
Protection category IP 54
is achieved as standard.
Rittal System Climate Control
Hosed water protection
Particularly for applications
in the food industry, the
hose-proof hood prevents
the ingress of damp. The
protection category IP X5 is
achieved in conjunction with
additional fine filter mats.
Important
● The prescribed heat loss
and the maximum anticipated ambient temperature define the required
volumetric flow
● Always use the fan-and-filter units and outlet filters
together
Calculation formulae,
see page 30 or refer to the
Internet at www.rittal.com
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Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com