Siemens SENTRON 3VL series - Page 148

Technical data
11.4 Derating factors
3VL IEC molded case circuit breakers
148 System Manual, 11/2013, 110 0110 - 02 DS 03
Response values for minimum and maximum settings on the thermal release
Table 11- 22 Setting values I
r
dependent on the ambient temperature (0 °C … 35 °C)
Size
In
[A]
Ambient temperature
0 °C
10 °C
20 °C
30 °C
35 °C
Tripping values for minimum and maximum settings on the
thermal release
min
max*
min
max*
min
max*
min
max*
min
max*
VL160X
16
-
19
-
19
-
18
-
17
-
17
20
22
24
20
23
19
22
18
22
18
21
25
-
30
-
29
-
28
-
27
-
27
32
34
38
32
37
30
36
29
35
28
34
40
43
48
41
46
39
45
36
43
35
42
50
54
60
51
58
48
56
46
54
44
53
63
68
76
64
73
61
71
57
68
55
67
80
85
96
81
93
76
90
72
86
70
85
100
108
120
102
116
97
112
91
108
88
106
125
135
150
128
145
121
140
114
135
111
133
160
169
192
160
186
151
179
143
173
138
170
VL160
50
54
63
51
60
48
58
46
55
44
54
63
68
79
64
76
61
72
57
69
55
68
80
85
100
81
96
76
92
72
88
70
86
100
108
125
102
120
97
115
91
110
88
108
125
135
156
128
150
121
144
114
138
111
134
160
169
200
160
192
151
184
143
176
138
172
VL250 200 216 250 205 240 194 230 182 220 177 215
250
270
313
256
300
242
288
228
275
221
269
VL400
200
216
240
205
232
194
224
182
216
177
212
250
270
300
256
290
242
280
228
270
221
265
315
338
378
320
365
303
353
285
340
276
334
400
432
480
410
464
387
448
365
432
354
424
VL630
315
338
378
320
365
303
353
285
340
276
334
400
432
480
410
464
387
448
365
432
354
424
500
540
600
512
580
484
560
456
540
442
530
630
675
756
640
731
605
706
570
680
553
668
* For TMTUs with fixed setting, the value for "max" applies.
Example for VL160:
The I
r
of a VL 160X with adjustable TMTU and I
n
= 63 A refers to 50 °C and can be adjusted
there in the range 50 A … 63 A. At an ambient temperature of 30 °C, these values change
so that the adjustable range for Ir is 57 A … 68 A.