Siemens SIMOTICS S-1FK2 Series Configuration Manual page 103

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.
Table 8- 1
Cross-section in mm²
Electronics (according to EN 60204-1)
0.20
0.50
0.75
Power (according to EN 60204-1)
0.75
1.00
1.50
2.50
Table 8- 2
1FK2 synchronous motors for SINAMICS S120
Configuration Manual, 06/2019, A5E46927724B AB
Cable cross-section and current-carrying capacity
Current-carrying capacity rms; AC 50/60 Hz or DC for routing type
Derating factors for power and signal cables
Ambient air temperature in °C
30
35
40
45
50
55
60
B1 in A
-
-
-
8.6
10.3
13.5
18.3
Derating factor according to EN 60204-1 Table D1
Electrical connection
8.3 System integration
B2 in A
4.3
7.5
9
8.5
10.1
13.1
17.4
1.15
1.08
1.00
0.91
0.82
0.71
0.58
C in A
4.4
7.5
9.5
9.8
11.7
15.2
21
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