Admissible current I [A]
Conductor
cross-sec-
tion A [mm²]
B2 wiring
(1)
E wiring (3 ca-
ble leads)
(2)
F wiring (3 ca-
ble leads)
(3)
4
23
30
–
6
29
37
–
10
40
52
–
16
53
70
–
25
67
88
96
35
83
110
119
50
100
133
145
70
130
171
188
95
150
207
230
120
175
240
268
150
–
277
309
185
–
317
356
240
–
374
422
300
–
433
488
400
–
–
570
500
–
–
652
630
–
–
744
Tab. 2: Current carrying capacity according to DIN VDE 0298-4
(1)
B2 wiring: wiring in installation tubes or closed installation channels.
(2)
E wiring: Free wiring of one cable with a min. distance of 0.3 × cable diameter to the wall.
(3)
F wiring: Free wiring of several cables with a min. distance of 1 × cable diameter to the wall.
For detailed information refer to the standard IEC 60364-5-52 and the documents of the
cable manufacturer.
The following correction factors are provided for deviating ambient temperatures:
Ambient temperature T [°C]
Correction factor
30
1.15
35
1.08
40
1.00
45
0.91
50
0.82
55
0.71
60
0.58
Cross-sections of round conductors
The standard values of the cross-section of round copper conductors as well as the ap-
proximate ratio of metric ISO and AWG/MCM values are shown in the following table.
53
Drive Amplifier SD2B plus - 0362171DA1xxxx, 0362171DB1xxxx
General Information Regarding the Wiring
