Siemens NCU 7x0.3 PN Series Manual page 39

Procedure
1. Remove the spacers.
2. Fit the seal around the cooling ribs of the Control Unit.
3. Loosen the three M3 screws on the upper clip and push the clip up until the upper hole
4. Retighten the 3x M3 screws (0.8 Nm) of the clip.
5. Mount the top and bottom of the Control Unit with heat sink directly on the rear wall of the
NCU 7x0.3 PN
Manual, 09/2011, 6FC5397-1EP40-0BA0
protrudes beyond the housing.
control cabinet using two M6 screws (6 Nm) (
6.5 Mounting the Control Unit for segregated heat removal
①
see figure titled "Panel cutout").
Assembling
39