Siemens 1FK7 Series Operating Instructions Manual page 32

Connecting
6.1 Electrical connection
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, C and E 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- 1
Cross section
[mm
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
4
6
10
16
25
35
50
70
95
120
Power (according to IEC 60364-5-52)
150
185
> 185
1)
30
Cable cross section and current-carrying capacity
Current-carrying capacity rms; AC 50/60 Hz or DC for routing type
] B1 [A]
2
-
-
-
8.6
10.3
13.5
18.3
24
31
44
59
77
96
117
149
180
208
239
274
Values must be taken from the standard
Extrapolated values
B2 [A]
4.3
7.5
9
8.5
10.1
13.1
17.4
23
30
40
54
70
86
103
130
165
179
206
1) 1)
235
1) 1)
C [A] E [A]
4.4 4.4
7.5 7.8
9.5 10
9.8 10.4
11.7 12.4
15.2 16.1
21 22
28 30
36 37
50 52
66 70
84 88
104 110
125 133
160 171
194 207
225 240
259 276
1)
296 315
1)
Synchronous Motors 1FK7
Operating Instructions, 03/2011, 610.40700.40c
1)
1)