Accessing the connection compartment through the front
330 NXAIR / ≤ 40 kA 110-0134.9 / 14
Damages inside the switching-device compartment
Damages inside the switching-device compartment due to incorrect or incomplete
installation of the partition.
To fasten the partition, always assemble all bolted joints of the partition all
around, and screw them in up to the end of the thread.
In addition to these instructions, an instruction label on the vertical partition informs about safe fastening of
the partition:
Fig. 609: Instruction label on the vertical partition
Preconditions
• Feeder earthing switch in CLOSED position
• High-voltage door open
• Low-voltage connector stowed away
• Unit consisting of ventilation duct and vertical partition available. Associated connecting elements
available:
• 13 bolts M8x20 with contact washers and plain washers size 8 acc. to ISO 7093
• 7 bolts M8x20 with contact washers
• Protection plate and associated connecting elements available:
• 4 nuts M8 with contact washers
• Front part of ventilation duct and associated connecting elements available:
• 8 bolts M8x20 with contact washers
Procedure
Place the unit consisting of ventilation duct (1) and vertical partition (2) centrally on the panel
base frame. The vertical partition must point towards the connection compartment.
Push the unit towards the connection compartment as far as it will go.
Fix the unit by screwing the bolts hand-tight:
• 13 bolts M8x20 with contact washers and plain washers size 8
acc. to ISO 7093 (3)
• 7 bolts M8x20 with contact washers (4)