Siemens NXAIR Operating Instructions Manual page 354

Accessing the connection compartment through the rear
Preconditions
•
Rear wall available
•
Corresponding number of sealing brackets, ledges and associated connecting elements available:
•
All panel versions except for contactor panels with panel width 435 mm:
•
2 sealing brackets
•
1 horizontal ledge and associated 8 bolts M8x25 with contact washers and plain
washers size 8 acc. to ISO 7093
•
2 vertical ledges and a total of associated 28 bolts M8x20 with contact washers
•
4 bolts M8x20 with contact washers to fix the rear wall at the panel bottom
•
Contactor panels with panel width 435 mm only:
•
2 sealing brackets
•
2 vertical ledges and a total of associated 28 bolts M8x20
•
3 bolts M8x20 to fix the rear wall
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CAUTION
Sharp edges
The metal parts of the rear wall may have sharp edges.
Put on personal protective equipment.
NOTICE
Danger due to damages
Possible malfunctioning and switchgear damage caused by foreign objects:
Remove all foreign objects from the connection compartment, for
example:
•
Tools
•
Unused installation material
•
Packing material
•
Cleaning material
NOTICE
Cleaning
Possible malfunctioning and damage to the panels caused by pollution.
Before closing the connection compartment:
Clean polluted areas in the connection compartment. To do this, use a
vacuum cleaner and a lint-free cloth. If necessary, moisten the cloth, use a
mild household cleaner, and dry properly at the end.
Some parts and surfaces of the switchgear are greased for functioning.
Do not remove the grease there; do not clean the parts and surfaces.
If greased areas are dirty, clean the dirty area and grease again according
to the maintenance instructions.
NXAIR / ≤ 40 kA
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