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Siemens SENTRON 3VL - Page 160

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Technical data
12.5 Derating factors
3VL molded-case circuit breakers
160 System Manual, 03/2009, 110 0110 - 02 DS 01
Thermomagnetic overcurrent trip unit:
Fixed mounting:
Table 12- 21 Derating factors of thermomagnetic overcurrent trip unit
Max. rated uninterrupted current according to the
ambient temperature x I
n
Circuit
breaker
I
n
At 50 °C
[A]
Cross-
section Cu
[mm
2
] min.
Cross-
section Al
[mm
2
]min
40 °C 50 °C 60 °C 70 °C
VL160X 16
20
25
32
40
50
63
80
100
125
160
2,5
2,5
4
6
10
10
16
25
35
50
70
4
4
6
10
10
16
25
35
50
70
95
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0,93
0,93
0,93
0,93
0,93
0,93
0,93
0,93
0,93
0,93
0,93
0,86
0,86
0,86
0,86
0,86
0,86
0,86
0,86
0,86
0,86
0,86
VL160 50
63
80
100
125
160
10
16
25
35
50
70
16
25
35
50
70
95
1
1
1
1
1
1
1
1
1
1
1
1
0,93
0,93
0,93
0,93
0,93
0,93
0,86
0,86
0,86
0,86
0,86
0,86
VL250 200
250
95
120
120
185
1
1
1
1
0,93
0,93
0,86
0,86
VL400 200
250
315
400
95
120
185
240
120
185
2x120
2x150
1
1
1
1
1
1
1
1
0,93
0,93
0,93
0,93
0,86
0,86
0,86
0,86
VL630 315
400
500
630
185
240
2x150
2x185
2x120
2x150
2x185
2x240
1
1
1
1
1
1
1
1
0,93
0,93
0,93
0,93
0,86
0,86
0,86
0,86

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