Rockwell Automation Publication 7000-UM202D-EN-P - May 2018 97
Power Component Definition and Maintenance Chapter 2
Replacing Heatsinks/
Heatpipes
There are three different styles of heatsinks and one type of heatpipe used in
PowerFlex 7000 air-cooled drives, depending on thermal requirements:
• Aluminum type W heatsinks have a plurality of short internal fins along
the internal surfaces
• Aluminum type M heatsinks have internal fins with flat surfaces.
• Copper heatsinks have internal fins made from folded copper foil
• Heatpipes have a stack of aluminum fins
Figure 86 - Styles of Heatsinks / Heatpipes
Aluminum Type W Aluminum Type M Copper
Heatpipe End Position
Heatpipe
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