STG-BEIKIRCH 4A - Cable Cross-Section Determination; Cable Length Diagram

46
08/13424999756
Cable length diagram
To determine the necessary cable cross-sections as a function of the line length and the sum of the rated currents of the
drives.
Cable cross-section determination
Notes re cable cross-section determination and cabling layout
Simpliedformulaeforcablecross-sectiondetermination(fordrivesupto2.5Anominalcurrentdraw)
Note: Permissible current supply has to be considered, see technical data.
A = cable cross-section
I = sum of the rated drive current draws
*L = simple line length
** 30 % = loading factor for drives greater than or equal to 2.5 A current consumption
73 = factor, made up from 2.5 V max. permissible voltage drop and electrical conductivity of copper
Compact control panel 4A, 4A/M und 8A, 8A/M
0
1
Cable length diagram up to 8 amperes
(single cable length)
Rated current of drive in amperes
a)
b)
c)
d)
e)
50
100
150
200
250
300
350
400
450
500
2
3
4
5
6
7 8
a)
b)
c)
d)
e)
0
20
40
60
80
100
120
140
160
2,5
3
3,5
5
6
7
8
4
4,5
5,5
6,5
7,5
a) 1,5 mm²
b) 2,5 mm²
c) 4 mm²
d) 2 x 2,5 mm²
e) 6 mm²
m (single cable length)
Rated current of drive in amperes
for drives with a power consumption < 2.5 A
for drives with a power consumption ≥ 2,5 A
Cable length diagram up to 8 amperes
A [mm²] =
*
(I [A] + ggf. Aufschlag in %**) x L [m]
73
A [mm²] =
*
(I [A] + if so loading factor in %**) x L [m]
73
simple cabel
length(L*)
M
=
M
=
A [mm²] =
(I [A] + if so loading factor in %**) x L* [m]
73