Siemens NXAIR - Installing the Rear Wall on the Connection Compartment

Accessing the connection compartment through the rear
110-0134.9 / 14 NXAIR / ≤ 40 kA 353
To remove the rear wall (4), pull at the handle. Store the rear wall together with the associated
connecting elements.
(3)
Bolts to remove
(4)
Rear wall with handle
Fig. 653: Contactor panels with panel width 435 mm only:
Removing the rear wall
✓
Access to the connection compartment through the rear side is given.
INFORMATION
Final procedure steps
Immediately proceed to perform the intended checks and works in the
connection compartment.
24.2 Installing the rear wall on the connection compartment
DANGER
Electric shock
To perform any kind of activities inside or near the connection compartment of a
panel, you must ensure that this compartment is safely isolated from supply.
Without isolation from supply, the cables / bars connection in the connection
compartment will be live at operational high-voltage.
Observe the Five Safety Rules.
Verify safe isolation from supply.
Make sure all openings on the rear side are closed by fixing bolts before
the panel is put into operation again.
Do not operate the feeder earthing switch during any activities inside or
near the connection compartment.
Do not remove any ledges on the rear side of the busbar compartment.
3
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