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Electrical connection
6.2 Connecting the machine
Line feeder cables
Terminal connec‐
tion
Terminal connec‐
tion
Direction of rotation of the motor when viewing the DE
6.2.2.3
Terminal marking
According to IEC / EN 60034‑8, the following basic definitions apply to the terminal markings for
3-phase machines:
Table 6-1
1
x
6.2.2.4
Cable entry
Assembly and laying of cables
Screw the screw-type connection into the housing or fasten with a nut.
Note
The screw-type connections must have been matched to the connecting cables used (diameter
armoring, braid, shield).
For the screw-type connections, comply or exceed the requirements relating to IP degree of
protection (water and dust) - as well as the temperature range in operation stamped on the
rating plate.
6.2.2.5
Versions
The terminal box can be turned 4x90 degrees on the terminal base of the machine's housing.
66
Direction of ro‐
tation
-
Clockwise ro‐
tation
Counter-clock‐
wise rotation
Terminal markings using the 1U1-1 as an example
U
1
-
1 Marking
Code for split winding, where applicable. Special case for pole assignment for pole-
changing machines.
A lower index signifies a lower speed.
x
Phase designation U, V, W
x
Index for winding start (1) or end (2) or if there is more than one connection per
winding
x Additional indices for cases in which it is obligatory to connect parallel power feed
cables to several terminals with otherwise identical markings
According to IEC
L1 L2 L3
U V W
V U W
1LE1, 1FP1/3, 1PC1/3 shaft height 63 ... 315
Operating Instructions, 11/2023, A5E38483075A
According to NEMA
L1 L2 L3
T1 T2 T3
T2 T1 T3
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