Tightening Torques; Cable Glands; Terminal Boxes, End Shields, Grounding Conductors, Sheet Metal Fan Covers - Siemens 1LA Operating Instructions Manual

Connecting

Tightening torques

Cable glands

NOTICE
Take care not to damage the cable jacket.
T htening tor ig ques must be adapted to suit the type of cable jacket material in use.
You should refer to the table in order to find the correct tightening torque for any
metal an d plastic cable glands that are to be mounte
w ell as for any other screw-type connections (such as adapters).
Table 1 Tightening torques for cable glands
M 12 x 1,5
M 16 x 1,5
M 20 x 1,5
M 25 x 1,5
M 32 x 1,5
M 40 x 1,5
M 50 x 1,5
M 63 x 1,5
Terminal boxes, end shields, grounding conductors, sheet metal fan
covers
Note
The specified tightening torques are applicable unless other values are indicated.
Table 2 Tightening torques for screws on the terminal box, end shields, screw-type
grounding conductor connections
Thread ∅
Nm
10
Metal
± 10%
Nm
8
10
12
18
20
M 4 M 5
min 2 3.5
max 3 5
d directly on the machine, as
Plastic
± 10%
Nm
1,5
2
4
6
M 6 M 8
6 16
9 24
Standard machines_Operating_Instructions_Compact
O ring
String ∅
mm
M 10 M 12 M 16
28 46 110
42 70 165
56100000002001 EN, 01/2010
2
M20
225
340