Operating the contactor panel with panel width 600 mm
110-0134.9 / 14 NXAIR / ≤ 40 kA 151
14.5 Closing the high-voltage door
Reduced safety
The closed high-voltage door is an important safety element of the switchgear.
The high-voltage door is exclusively opened for performing operational activities
inside the switching-device compartment, such as removing or inserting a
contactor truck.
Close the high-voltage door:
If an activity inside the switching-device compartment is interrupted.
Immediately after an activity inside the switching-device compartment was
completed.
Before leaving the panel front.
Instruction label on high-voltage door:
In addition to these instructions, an instruction label on the high-voltage door describes safe closing of the
high-voltage door before executing a switching operation.
Fig. 264: Instruction label on high-voltage door
Preconditions
• Contactor truck:
• Contactor truck removed from the panel
or
• Contactor truck inserted in test position
• High-voltage door open
• Padlock for door handle (optional) available
Procedure
Push the door handle on the high-voltage door totally upwards, and hold it.
Press the high-voltage door totally onto the panel frame using the door handle.
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