Braking Module / braking resistor
Operating Instructions, 11/2017, A5E00331454A
15
Mechanical installation
3
3.1
General
Tightening torques for screw connections
The following tightening torques apply when tightening current-conducting connections (DC-
link connections, motor connections, busbars, lugs) and other connections (ground
connections, protective conductor connections, steel threaded connections).
Table 3- 1
Tightening torques for screw connections
Thread
Ground connections, protective
conductor connections, steel
threaded connections
Aluminum threaded connections,
plastic, busbars, lugs
M3
1.3 Nm
0.8 Nm
M4
3 Nm
1.8 Nm
M5
6 Nm
3 Nm
M6
10 Nm
6 Nm
M8
25 Nm
13 Nm
M10
50 Nm
25 Nm
M12
88 Nm
50 Nm
M16
215 Nm
115 Nm
Note
Screw connections for protective covers
The threaded connections for the protective covers made of Makrolon may only tightened
with 2.5 Nm.
