How to load / How to cool?

Our converters are specified and tested to work at a full ambient temperature range of -25 to +55°C or +70°C at 100% load. Continuous operation at high ambient temperatures cuts the life expectancy of the unit. Some customers derate to spare their units, to less than 50% of the rated load capacity. On a well designed converter the ambient temperature is more important than the load, in achieving long life expectancy. As our converters are cased in closed aluminium boxes and dimensioned for convection cooling it is very efficient to arrange a small air flow around them. A 10°C lower ambient temperature will basically doubles the life expectancy of the unit. Consult Polyamp on general thermal management questions for your application.

Last Updated on Monday, 04 January 2010 08:53