Siemens Simovert Masterdrives Compact Plus Series Operating Instructions Manual page 167

Installation
Requirements at the
point of installation
5-2
♦ Foreign particles
The units must be protected against the ingress of foreign particles
as otherwise their function and operational safety cannot be
ensured.
♦ Dust, gases, vapors
Equipment rooms must be dry and dust-free. Ambient and cooling
air must not contain any electrically conductive gases, vapors and
dust which could diminish the functionality. If necessary, filters
should be used or other corrective measures taken.
♦ Cooling air
The units must only be operated in an ambient climate in
accordance with DIN IEC 721-3-3 Class 3K3. For cooling air
temperatures of more than 45 °C (113 °F) and installation altitudes
higher than 1000 m, derating is required.
Cooling air
Fig. 5-1 Minimum clearances for cooling
Mounting
surface
6SE7087-6KP50
Operating Instructions SIMOVERT MASTERDRIVES
06.2006
Siemens AG