3-4
Electrical installation
REFUdrive 500 RD51
DOK-RD500*-RD51*******-IB01-EN-P
3.3 Conductor
cross-section
The conductor cross-sections refer to the rated drive converter current.
The associated protective conductor cross-section must be a minimum of
10 mm
2
(if cables have cable cross-sections > 10 mm
2
, the protective
conductor must have the same cross-section).
For line supply cables (feeder cables), the following
assumptions are made:
•
The cross-sections are valid for one phase for multi-core cables and
was defined in accordance with VDE0298.
•
Up to 35 mm
2
, individual cores in the cable duct.
•
Above
50
mm
2
, free routing in the cabinet without coming into contact
with other cables or equipment (as an alternative, busbars are recom-
mended).
For motor feeder cables, the following assumptions are
made:
•
The cross-sections are valid for shielded four-conductor cables, and
were defined according to VDE0298.
•
Up to 35 mm
2
, routing in cable ducts without cable clumping
•
From 50 mm
2
, free, routing in the cabinet without coming into contact
with other cables or equipment.
Supply connection
Motor connection
Recommended min.
cross-section
Equipment
output
for
400/480 V
converters
2)
inverters
3)
Cable cross-
section range 1)
Maximum
fusing
Type gL
Recom-
mended min.
cross-section
Cable cross-
section range 1)
[kW]
[mm
2
]
[mm
2
]
[mm
2
]
[A]
[mm
2
]
[mm
2
]
1,5
2,5
2,5
0,2 - 4
5
2,5
0,5 - 10
3,0
2,5
2,5
0,2 - 4
10
2,5
0,5 - 10
4,0
2,5
2,5
0,2 - 4
16
2,5
0,5 - 10
5,5
2,5
4
0,2 - 4
16
2,5
0,5 - 10
7,5
4
4
0,2 - 4
20
4
0,5 - 10
11
10
10
0,5 - 25
35
6
0,5 - 16
15
10
16
6 - 25
35
10
0,5 - 16
18,5
16
16
6 - 25
50
10
0,5 - 16
22
16
25
16 - 50
50
16
25 - 50
30
25
35
16 - 50
63
25
25 - 50
37
35
35
25 - 50
80
35
25 - 50
45
50
50
25 - 50
100
50
25 - 50
55
50
50
35 - 95
125
50
35 - 95
75
50
95
35 - 95
160
50
35 – 95
90
95
95
35 - 95
250
50
35 - 95
110
95
2 x 50
50 - 110
250
70
50 - 110
132
95
2 x 50
50 - 110
250
95
50 - 110
160
2 x 50
2 x 70
50 - 110
315
2 x 50
50 - 110
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01
