Siemens SINAMICS S120 Manual page 323

Tightening torques for screw connections
The following tightening torques apply when tightening connections of operating current-
conducting parts (DC-link/motor connections, general busbars), non-operating current-
conducting parts (ground connections, ground terminal connections), and general steel
threaded connections.
Table 8- 1
NOTICE
Screw connections for protective covers
The threaded connections for the protective covers made of Makrolon may only be
tightened with 2.5 Nm.
Chassis power units
Manual, (GH3), 01/2013, 6SL3097-4AE00-0BP3
Tightening torques for screw connections
Thread Ground connections, protective
conductor connections, steel
(fault current-conducting)
M3
M4
M5
M6
M8
M10
M12
M16
threaded connections
1.3 Nm
3 Nm
6 Nm
10 Nm
25 Nm
50 Nm
88 Nm
215 Nm
Maintenance and Servicing
8.3 Maintenance
Plastic, busbars (operating current-
conducting)
0.8 Nm
1.8 Nm
3 Nm
6 Nm
13 Nm
25 Nm
50 Nm
115 Nm
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