Siemens SINAMICS S120 Equipment Manual page 74

Power Modules
3.5 Installation
Screw coupling points for mechanical support
The Power Modules are provided with screw coupling points at the top and bottom so that
they can be connected to modules mounted adjacently.
Protection guard
A protection guard is mounted on the bottom of the Power Module ("1" in the diagram below)
for use during transportation. The Power Module can be rested on this protection guard while
it is removed from the packaging and during transportation.
Before the module is installed at its final location, this guard must be removed. To do this,
remove the 4 screws ("2" in the diagram) and remove the guard.
Figure 3-7
72
Protection guard
Chassis Liquid Cooled Power Units
Manual, (GH7), 01/2011, 6SL3097-4AM00-0BP1