Siemens NXAIR M - Page 155

Accessing the connection compartment through the front
139-2021.9 / 07 NXAIR M 155
In addition to these instructions, an instruction label in the switching-device compartment informs about safe
fastening of the partition:
Fig. 262: Instruction label on door to low-voltage compartment
Preconditions
 Feeder earthing switch in CLOSED position
 High-voltage door open
 Low-voltage connector stowed away
 Panel versions with withdrawable circuit-breaker, withdrawable circuit-breaker / fuse combination or
withdrawable disconnector link only:
 Protection plate of switching-device compartment available
 Connecting elements available:
4 nuts M8 with contact washers
 All panel versions:
 Partition available
 Connecting elements available:
10 bolts M8x20 with contact washers and plain washers
5 bolts M8x20 with contact washers
Procedure
Install the partition (2) between the connection compartment and the switching-device
compartment.
To fix the partition (2), tighten the bolts all around hand-tight:
 13 bolts M8x20 with contact washers and plain washers (4)
 2 bolts M8x20 with contact washers (3)
Tighten the fixing bolts all around with a tightening torque of 25 Nm.