Motor Description
1.7 Electrical connections
1PH7/1-25
Siemens AG, 2004. All rights reserved
Induction Motors, 1PH7 (APH7S) – 05.04 Edition
– the cable entries are reliably sealed,
– unused cable entry glands are closed and the caps are tightly screwed in
and
– all of the sealing surfaces are in a good condition.
Press drives
Note
For press drives with acceleration rates > 2 g, special measures are required.
Please contact your local Siemens office.
Cross-sections
When connecting cables to the terminal board, the connecting cables must be
dimensioned corresponding to the rated current and the size of the cable lugs must
match the dimensions of the terminal studs.
Table 1-8 Current load capability acc. to EN 60204-1 for PVC-insulated cables with
copper conductors at a 40C ambient temperature and routing type C (cables
and conductors retained to panels/walls and cable ducts)
I
rms
at +40 °C [A] Required cross-section
[mm
2
]
Comments
11.7 1 Correction factors with ref-
15.2 1.5
erence to ambient tempera-
ture and routing type are
21 2.5
ture and routing type are
s
ecified in EN60204-1.
28 4
-
.
36 6
50 10
66 16
84 25
104 35
123 50
155 70
192 95
221 120
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