5
102
System Manual – MOVITRAC® 07
Supply system lead and motor cable
Project Planning
Voltage drop
Select the line cross section of the motor lead so the voltage drop is as small as pos-
sible. An excessively high voltage drop means that the motor does not achieve its full
torque.
You can refer to the following tables to find the expected voltage drop. For shorter lines,
you can calculate the voltage drop by converting proportional to the length.
Line cross sec-
tion
Load with I [A] =
4
6
8
10
13
16
20
25
30
40
50
63
80
100
125
150
Copper
Voltage drop
∆
U [V] with length = 100 m (330 ft) and
ϑ
= 70 °C
1.5 mm
2
5.3
8
10.6
13.3
17.3
21.3
1
2.5 mm
2
3.2
4.8
6.4
8.1
10.4
12.8
16
4 mm
2
1.9
2.8
3.8
4.7
6.5
8.0
10
12.5
6 mm
2
4.4
5.3
6.4
8.3
9.9
10 mm
2
3.2
4.0
5.0
6.0
8.2
10.2
16 mm
2
3.3
3.9
5.2
6.5
7.9
10.0
25 mm
2
2.5
3.3
4.1
5.1
6.4
8.0
35 mm
2
2.9
3.6
4.6
5.7
7.2
8.6
50 mm
2
4.0
5.0
6.0
1
Loading not permitted, in accordance with VDE 0100 part 430
Line cross sec-
tion
Load with I [A] =
4
6
8
10
13
16
20
25
30
40
50
63
80
100
125
150
Copper
Voltage drop
∆
U [V] with length = 100 m (330 ft) and
ϑ
= 70 °C
AWG16
7.0
10.5
1
AWG14
4.2
6.3
8.4
10.5
13.6
AWG12
2.6
3.9
5.2
6.4
8.4
10.3
12.9
AWG10
5.6
6.9
8.7
10.8
13.0
AWG8
4.5
5.6
7.0
8.4
11.2
AWG6
4.3
5.1
6.9
8.6
10.8
13.7
AWG4
3.2
4.3
5.4
6.8
8.7
10.8
13.5
AWG3
2.6
3.4
4.3
5.1
6.9
8.6
10.7
12.8
AWG2
3.4
4.2
5.4
6.8
8.5
10.2
AWG1
3.4
4.3
5.4
6.8
8.1
AWG1/0
2.6
3.4
4.3
5.4
6.8
AWG2/0
2.7
3.4
4.3
5.1
1
More than 3 % voltage drop in relation to V
in
= 460 V
AC
.
