
_____________________________________________________________________________________________
Q3
ENERGIE
Installation and operating instructions Q
X
³ series
34/109
Version 1.0, Stand 27.04.2015
Installation and operating instructions
Q
X
³ series
Dimensioning of the grid supply cable
Select the cross-section of the AC grid supply cable in such a way that the cable
losses are kept as low as possible (max. possible cross-section, with min. cable
length).
The following table shows the maximum cable lengths in dependence on the
cable cross section. The maximum cable length should not be exceeded in order
to limit the ohmic voltage drop in the cable to < 1%.
Cable length
Device
Max. Current
Minimum cable cross-section Max. Cable length
Q
X
³4000
Q
X
³5000
8A
5x 1, 5mm²
24 m
5x 2,5 mm²
40 m
5x 4 mm²
64 m
Q
X
³6000
10A
5x 1,5 mm²
19 m
5x 2,5 mm²
32 m
5x 4 mm²
51 m
Q
X
³7000
Q
X
³8000
12A
5x 1,5 mm²
16 m
5x 2,5 mm²
26 m
5x 4 mm²
43 m
Q
X
³10000
20A
5x 4 mm²
25 m
5x 6 mm²
38 m
5x 10 mm²
64 m
Q
X
³13000
Q
X
³15000
22A
5x 4 mm²
23 m
5x 6 mm²
35 m
5x 10 mm²
58 m
Q
X
³18000
25A
5x 4 mm²
20 m
5x 6 mm²
31 m
5x 10 mm²
51 m