Siemens SIMOTICS XP 1LA5 Compact Operating Instructions page 38

Low-voltage motors
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Electrical connection
6.1.1.2
Protruding connection cables
WARNING
Risk of short-circuit and voltage hazard
A short circuit can occur if connecting cables are clamped and crushed
between parts of the enclosure and the cover plate.
This can result in death, severe injury and material damage.
During disassembly and particularly when installing the cover plate,
make sure that the connecting cables are not clamped between
enclosure parts and the cover plate.
CAUTION
Damage to connecting cables that are freely led out
You must observe the following note to avoid damaging connecting cables that are
freely led out:
It must be ensured that there are no foreign bodies, dirt, or moisture in the
terminal base of the machine enclosure.
Use O-rings or suitable flat gaskets to seal entries in cover plates (DIN 42925)
and other open entries.
Seal the terminal base of the machine enclosure using the original seal of the
cover plate to prevent dust and water from entering.
Please observe the tightening torques for cable glands and other screws.
6.1.1.3
Thread sizes
Table 6-1
Thread sizes in the cast iron terminal box
Frame
Type
size
71 ... 90
1MB1
110
Type of protection /
Zone
Non sparking "n"
Zone 21
Zone 22
Standard thread
Size
Num
ber
M 25x1.5
1
M 16x1.5
1
Explosion-protected machines
56100000002002, 01/2016
Additional
thread
with mounting
parts
Size
Num
ber
-
-

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