Siemens NXAIR Operating Instructions Manual page 356

Accessing the connection compartment through the rear
Insert the 2 sealing brackets (3) into the vertical gaps between the panels.
Install the horizontal ledge (4). Fix it by screwing the bolts hand-tight:
•
8 bolts
acc. to ISO 7093
Tighten the bolts with a tightening torque of 25 Nm.
Install one of the vertical ledges (5). Fix it by screwing the bolts hand-tight:
•
14 bolts M8x20 with contact washers
Tighten the bolts with a tightening torque of 25 Nm.
Proceed in the same way with the other vertical ledge.
Fig. 657: All panel versions except for contactor panels with panel width 435 mm:
✓
The rear wall is installed on the connection compartment.
356
M8x25 with
Installing ledges and brackets
INFORMATION
Final procedure steps
Now the panel can be integrated into the course of operation again, for example:
De-earthing the feeder.
Racking the withdrawable part / switching-device truck to service position.
NXAIR / ≤ 40 kA
contact washers and
3
4
5
plain washers
(3) Sealing brackets
(4) Horizontal ledge
(5) Vertical ledges
110-0134.9 / 14
size 8