Siemens NXAIR M Operating Instructions Manual page 144

Operating the shutters
Opening the shutter to the busbar compartment (upper shutter)
Preconditions

Withdrawable part in test position

Padlock (optional) removed from door handle

High-voltage door open

Low-voltage connector stowed away

Withdrawable part taken out of the panel
Fig. 248: Slip-on lever for opening the shutter (marked with L)
Padlock the shutter mechanism on the right side in the switching-device compartment.
Fig. 249: Padlocking the shutter mechanism on the right side in the switching-device
Push the slip-on lever (marked with L) on the shutter mechanism on the left side in the
switching-device compartment.
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compartment
NXAIR M 139-2021.9 / 07