Siemens SIMOTICS S-1FK7 - Page 70

Connecting
5.4 System integration
1FK7 G2 synchronous motors
68 Operating Instructions, 05/2021, A5E50907562B AA
Current-carrying capacity for power and signal cables
The current-carrying capacity of PVC/PUR-insulated copper cables is specified for routing types
B1, B2 and C under continuous operating conditions in the table with reference to an
ambient air temperature of 40° C. For other ambient temperatures, the values must be
corrected by the factors from the "Derating factors" table.
Cable cross-section and current-carrying capacity
Cross-section
Current-carrying capacity rms; AC 50/60 Hz or DC for routing type
mm
2
B1 / A
B2 / A
C / A
Electronics (according to EN 60204-1)
0.20
-
4.3
4.4
0.50
-
7.5
7.5
0.75
-
9
9.5
Power (according to EN 60204-1)
0.75
8.6
8.5
9.8
1.00
10.3
10.1
11.7
1.50
13.5
13.1
15.2
2.50
18.3
17.4
21
4
24
23
28
6
31
30
36
10
44
40
50
16
59
54
66
25
77
70
84
35
96
86
104
50
117
103
125
Cable cross-section and current-carrying capacity
Derating factors for power and signal cables
Ambient air temperature [°C]
Derating factor according to EN 60204-1, Table D1
30
1.15
35
1.08
40
1.00
45
0.91
50
0.82
55
0.71
60
0.58
Derating factors for power and signal cables