Siemens NXAIR M - Page 188

Accessing the connection compartment through the rear
188 NXAIR M 139-2021.9 / 07
Fig. 317: Rear ledges and rear walls
on connection duct
(1)
Bolted joints for
upper rear wall
(2)
Upper rear wall
with handle
(3)
Horizontal ledge
(4)
Lower rear wall
with handle
(5)
Vertical ledges
(6)
Bolted joints for
lower rear wall
Install the horizontal ledge (3). Fix it by screwing the bolts in hand-tight:
 12 / 14 bolts M8x20 with contact washers and plain washers with the bolt fixing in
the area of the vertical ledges
Tighten the bolts with torque 25 Nm.

The rear walls are installed on the connection duct.
HINT
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 to service position.
1
2
3
6
4
5