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Electrical connection
6.2 Connecting the motor
The technical specifications stipulate the following that have to be taken into account with
respect to the motor connection:
● Direction of rotation.
● The number and arrangement of the terminal boxes.
● The circuit and connection of the machine winding.
6.2.1
Terminal designations
With the terminal designations according to DIN VDE 0530 Part 8 or EN / IEC 60034-8 for
three-phase machines, the following principle definitions apply:
Table 6- 1
1
x
6.2.2
Direction of rotation
The standard motors are suitable for clockwise and counter-clockwise rotation.
For defined directions of rotation (direction of rotation arrow), appropriately connect the line
power cables.
● If you connect the line cables with phase sequence L1, L2, L3 at U, V, W or according to
NEMA at T
● If you interchange two connections, e.g. L1, L2, L3 at V, U, W or according to NEMA at
T
Clockwise rotation
Counter-clockwise
rotation
Direction of rotation of the motor when looking at DE
50
Terminal designations (with the 1U1-1 as an example)
U
1
-
1
Designation
Index showing the pole assignment for pole-changing machines (where appli-
cable, a lower number indicates a lower speed) or, in special cases, for a
subdivided winding.
x
Phase designation (U, V, W)
x
Index showing the start (1) / end (2) or tapping point of the winding (if there is
more than one connection per winding)
x
Additional index for cases in which it is obligatory to connect parallel power
feed cables to several terminals with otherwise identical designations
T
T
, then the machine rotates in the clockwise direction.
1
2
3
T
T
, then the machine rotates counter-clockwise.
2
1
3
According to IEC
U V W
V U W
Operating Instructions, 03/2016, 5 610 80000 40 018
According to NEMA
T
T
T
1
2
3
T
T
T
2
1
3
Smoke extraction motors
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