TDK-Lambda CUS250M Bedienungsanleitung Seite 18

CUS250M Instruction Manual
Cooling for unit
Component temperatures for customer air or convection cooled models must be monitored in the end use
application as described in the "Cooling for Unit Temperature Table" below.
The following method must be used for determining the safe operation of PSUs.
The components listed in the following table must not exceed the temperatures given. To determine the
component temperatures the heating tests must be conducted in accordance with the requirements of the
standard in question. Consideration should also be given to the requirements of other safety standards.
Test requirements include: PSU to be fitted in its end-use equipment and operated under the most adverse
conditions permitted in the end-use equipment instruction manual/specification and which will result in the
highest temperatures in the PSU.
To determine the most adverse conditions consideration should be given to the end use equipment
maximum operating ambient, the PSU loading and input voltage, ventilation, end use equipment orientation,
the position of doors & covers, etc.
Temperatures should be monitored using type K fine wire thermocouples (secured with cyanoacrylate
adhesive or similar) placed on the hottest part of the component (out of any direct airflow) and the
equipment should be run until all temperatures have stabilised.
260771-01 Oct 2021
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