Siemens SENTRON 3VL series - Use under Diverse Ambient Temperatures

Technical data
11.4 Derating factors
3VL IEC molded case circuit breakers
System Manual, 11/2013, 110 0110 - 02 DS 03
143
11.4.2
Use under diverse ambient temperatures
Thermal-magnetic overcurrent releases
Fixed mounting:
Table 11- 16 Derating factors of thermal-magnetic overcurrent release
Molded
case
circuit
breaker
I
n
At 50 °C
[A]
Cross-
section Cu
[mm
2
] min.
Cross-
section Al
[mm
2
] min.
Max. rated uninterrupted current according to the
ambient temperature x I
n
40 °C
50 °C
60 °C
70 °C
VL160X
16
2,5
4
1
1
0,93
0,86
20
2,5
4
1
1
0,93
0,86
25
4
6
1
1
0,93
0,86
32
6
10
1
1
0,93
0,86
40
10
10
1
1
0,93
0,86
50
10
16
1
1
0,93
0,86
63
16
25
1
1
0,93
0,86
80
25
35
1
1
0,93
0,86
100
35
50
1
1
0,93
0,86
125
50
70
1
1
0,93
0,86
160
70
95
1
1
0,93
0,86
VL160
50
10
16
1
1
0,93
0,86
63 16 25 1 1 0,93 0,86
80
25
35
1
1
0,93
0,86
100 35 50 1 1 0,93 0,86
125
50
70
1
1
0,93
0,86
160
70
95
1
1
0,93
0,86
VL250
200
95
120
1
1
0,93
0,86
250
120
185
1
1
0,93
0,86
VL400
200
95
120
1
1
0,93
0,86
250
120
185
1
1
0,93
0,86
315
185
2x120
1
1
0,93
0,86
400
240
2x150
1
1
0,93
0,86
VL630
315
185
2x120
1
1
0,93
0,86
400
240
2x150
1
1
0,93
0,86
500
2x150
2x185
1
1
0,93
0,86
630
2x185
2x240
1
1
0,93
0,86