Assembling the panels
110-0084.9 / 15 NXAIR / ≤ 40 kA 113
7.13 Switchgear protection IP4X (optional)
Preparations
To achieve the degree of protection IP4X for the switchgear, some components must be sealed with
SIKAFLEX 221-GR 310 ML compound according to the information drawings before final assembly of the
switchgear.
SIKAFLEX 221-GR 310 ML is supplied with the accessories.
For further information, see information drawings NXAIR, order number 110-2300.9.
7.14 Components without installation activity
Systems assembled and tested at the factory are excluded from installation.
Therefore, do not execute any installation work on:
• Optical sensors for arc detection (optional)
• Overpressure monitors for arc detection (optional)
Do not modify or remove any systems assembled and tested at the factory.
Optical sensors (optional)
Depending on its version, the panel may feature a system with optical sensors for arc detection. The system
can cover up to 4 compartments.
The system consists of:
• Control units in the low-voltage compartment
• 1 optical sensor per covered compartment
• Connecting cables between the control unit and the sensors
Fig. 149: Optical sensor (2) and connecting
cable (1), for example in the switching-
device compartment
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