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6.3.4
Cable entries, sealing plugs and thread adapters
All cable entries and sealing plugs must be approved for use in the respective hazardous
area.
● Any openings that are not being used must be sealed using the appropriate certified
sealing plugs.
● Please observe the manufacturer's specifications when fitting cable entries.
Note the following when mounting:
● Avoid damaging the cable jacket.
● Adapt the tightening torques to the cable jacket materials.
Ex e
Observe the attached documentation for tightening torques of the cable entries and sealing
plugs for direct mounting to the machine as well as further glands (e.g. adapters).
Ex d
Table 6- 6
6.4
Connecting the grounding conductor
The machine's grounding conductor cross-section must comply with EN / IEC 60034-1.
Please also observe installation regulations such as those specified in EN / IEC 60204-1.
Basically, there are two ways of connecting a grounding conductor to the machine.
● Internal grounding with a connection in terminal box at the location intended for this
purpose and marked accordingly.
● External grounding with connection at the stator housing at the locations intended for this
purpose and marked accordingly.
1MB155 / 1MB555
Operating Instructions, 03/2018, A5E41926185A
Tightening torques of the sealing plugs
Thread size
M 16x1.5
M 20x1.5
M 25x1.5
M 32x1.5
M 40x1.5
M 50x1.5
M 63x1.5
M 80x2.0
6.4 Connecting the grounding conductor
Tightening torque
Nm
Min.
5
8
11
16
18
30
30
58
Electrical connection
Max.
6
10
13
19
22
35
35
63
71
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