Siemens MICROMASTER 411 - Manual (Page 22)

2 Installation Issue 03/01
MICROMASTER 411 & COMBIMASTER 411 Operating Instructions
22 6SE6400-5CA00-0BP0
2.2 Ambient operating conditions
Temperature
Operating temperature –10 °C to +40 °C
(power reduction at +50 °C see Section 10.4.1).
Humidity Range
≤ 99 %, Non-condensing
Altitude
If the inverter is to be installed at an altitude > 1000 m, derating will be required.
Refer to Section 10.4.2 for details.
Shock
Refer to the notes in Section 10.12.
Electromagnetic Radiation
Do not install the inverter near sources of electromagnetic radiation.
Overheating
MICROMASTER 411 / COMBIMASTER 411 are cooled by natural convection.
Mount the inverter with the heatsink fins above to ensure optimum cooling.
Mounting the inverter with the heatsink upside down is not allowed.
Ensure that airflow around the inverter housing is not obstructed. Allow 100 mm
clearance above and below the inverter.