Current-Carrying Capacity And Derating Factors For Power Cables And Signal Cables - Siemens SINAMICS S120 Combi Equipment Manual

12.7.3 Current-carrying capacity and derating factors for power cables 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 listed in the "Derating factors for deviating conditions" table.
Table 12- 10 Current-carrying capacity according to EN 60204-1 for 40 °C ambient temperature
Cross-section
mm
Electronics
0,20
0,50
0,75
Power
0,75
1,00
1,50
2,50
4
6
10
16
Installation types
B1 cables in conduits or installation ducts
B2 multi-core cables in conduits or installation ducts
C cables along walls/panels without conduits and installation ducts
Table 12- 11 Derating factors for deviating conditions
Ambient temperature [°C]
30
35
40
45
50
55
60
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5
Current-carrying capacity, effective; AC 50/60 Hz or DC
for routing type
B1
2
A
–
–
–
8,6
10,3
13,5
18,3
24
31
44
59
B2
A
4,3
7,5
9
8,5
10,1
13,1
17,4
23
30
40
54
Derating factor according to EN 60204-1 Table D1
1,15
1,08
1,00
0,91
0,82
0,71
0,58
Cabinet design and EMC
12.7 Connection system
C
A
4,4
7,5
9,5
9,8
11,7
15,2
21
28
36
50
66
305