Siemens SINAMICS S120 Equipment Manual page 28

Cold plate with external air heat sinks
2.2 Example: cold plate with external air heat sink
Rear view of cabinet
Figure 2-2 Rear view of cabinet
In this example, two axial fans with a diameter of 150 mm ensure forced convection. The
ribbed heat sink, which is attached to the rear, is located in an air duct (approx. 150 mm
deep). Additional air guides on the sides improve air guidance and significantly optimize the
cooling process for the power sections.
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Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4