Siemens SINAMICS S 1PH7 - Current-Carrying Capacity for Power and Signal Cables; Cable Cross Section and Current-Carrying Capacity; Derating Factors for Power and Signal Cables

Connection system
6.2 Power connection
1PH7 induction motors (Machine tools)
214 Configuration Manual, (APH7W), 04/2009, 6SN1197-0AD72-0BP0
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 6- 2 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
70 149 130 160
95 180 165 194
120 208 179 225
Power (according to IEC 60364-5-52)
150 - - 344
185 - - 392
> 185 Values must be taken from the standard
Table 6- 3 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