Siemens GMSG-GCB

44
Table 3: Typical vacuum interrupter contact life and stroke
Non-generator circuit breakers (type GMSG)
Rated
maximum
voltage
Interrupting
class
Rated short-
circuit current
Vacuum
interrupter
Continuous current Stroke
2
Graph
Right hand
limit of curve
(refer to
Figure 37)
Constant MVA ratings basis
kV MVA or kA kA Type A mm
4.76 250 MVA
29 kA@4.76 kV;
36 kA@3.85 kV
VS-15052
VS-17040
1,200, 2,000
1,200, 2,000
8.5-9.5
7-9
C
B
36
36
4.76 350 MVA
41 kA@4.76 kV;
49 kA@4.0 kV
VS-15052 1,200, 2,000, 3,000 8.5-9.5 C 49
8.25 500 MVA
33 kA@8.25 kV;
41 kA@6.6 kV
VS-15052 1,200, 2,000, 3,000 8.5-9.5 C 41
15.0 500 MVA
18 kA@15.0 kV;
23 kA@11.5 kV
VS-17006 1,200, 2,000 7-9 A 23
15.0 750 MVA
28 kA@15.0 kV;
36 kA@11.5 kV
VS-15052
VS-17040
1,200, 2,000, 3,000
1,200, 2,000
8.5-9.5
7-9
C
B
36
36
15.0 1,000 MVA
37 kA@15.0 kV;
48 kA@11.5 kV
VS-15052 1,200, 2,000, 3,000 8.5-9.5 C 48
Constant kA ratings basis
4.76 31.5 kA 31.5 kA@4.76 kV
VS-15052
VS-17040
1,200, 2,000
1,200, 2,000
8.5-9.5
7-9
C
B
31.5
31.5
4.76 40 kA 40 kA@4.76 kV
VS-15052
VS-17040
1,200, 2,000, 3,000
1,200, 2,000
8.5-9.5
7-9
C
B
40
40
4.76 50 kA 50 kA@4.76 kV VS-15052 1,200, 2,000, 3,000 8.5-9.5 C 50
4.76 63 kA 63 kA@4.76 kV VS-17085 1,200, 2,000, 3,000 10-11 D 63
8.25 40 kA 40 kA@8.25 kV
VS-15052
VS-17040
1,200, 2,000, 3,000
1,200, 2,000
8.5-9.5
7-9
C
B
40
40
15.0 20 kA 20 kA@15.0 kV VS-17006 1,200, 2,000 7-9 A 20
15.0 25 kA 25 kA@15.0 kV VS-17006 1,200, 2,000 7-9 A 25
15.0 31.5 kA 31.5 kA@15.0 kV
VS-15052
VS-17040
1,200, 2,000
1,200, 2,000
8.5-9.5
7-9
C
B
31.5
31.5
15.0 40 kA 40 kA@15.0 kV
VS-15052
VS-17040
1,200, 2,000, 3,000
1,200, 2,000
8.5-9.5
7-9
C
B
40
40
15.0 50 kA 50 kA@15.0 kV VS-15052 1,200, 2,000, 3,000 8.5-9.5 C 50
15.0 63 kA 63 kA@15.0 kV VS-17085 1,200, 2,000, 3,000 10-11 D 63
Generator circuit breakers (type GMSG-GCB)
Up to 15.0 40 kA 40 kA@15.0 kV VS-15052 1,200, 2,000, 3,000 8.5-9.5 C 40
Up to 15.0 50 kA 50 kA@15.0 kV VS-17085 1,200, 2,000, 3,000 10-11 D 50
Up to 15.0 63 kA 63 kA@15.0 kV VS-17085 1,200, 2,000, 3,000 10-11 D 63
Footnotes:
1.
The vacuum interrupter type designation is labeled on the vacuum interrupter. If the vacuum interrupter installed does not match that indicated in this
table, contact the nearest Siemens representative.
2.
If you need assistance achieving the indicated stroke setting, contact the nearest Siemens representative.