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By certification 
indoor permanent magnet vacuum circuit breaker
ZN63 (VS1)-12 Series Vacuum Circuit Breaker, adopts solid insulation structure, use of advanced solid epoxy sealing technology, the first time, the vacuum interrupter. A leading electrical circuit, insulation and other support to become an integrated combination of solid seal pole. Successfully from a fundamental solution of the vacuum breaker gas environment, tolerance issues, make it broader. Integrated solid-pole closure of the fluent use of a self-ventilation technology cleverly solved the structure of solid insulation caused by heat dissipation.
NO |
Item |
Units |
parameters |
|||
1 |
Rated voltage |
KV |
12 |
|||
2 |
Rated insulation level |
Rated Lightning Impulse voltage tolerance |
KV |
75 |
||
1min Frequency voltage |
42 |
|||||
3 |
Rated short-circuit breaking current |
KA |
20/25 |
31.5 |
40 |
|
4 |
Rated current |
A |
630 |
630 1250 |
1250 1600 |
|
5 |
Rated thermal stability of current (RMS) |
KA |
20/25 |
31.5 |
40 |
|
6 |
Dynamic Stability rated current (peak) |
63 |
80 |
100 |
||
7 |
Rated short-circuit closing current (peak) |
63 |
80 |
100 |
||
8 |
Rated short-circuit breaking current breaking number |
times |
50 |
|||
9 |
Frequency tolerance of the secondary circuit voltage (1min) |
V |
2000 |
|||
10 |
Rated operating sequence |
0-0.3s-CO-180s-CO |
||||
0-180s-CO-180s-CO(40kA) | ||||||
11 |
Rated thermal stabilization time |
S |
4 |
|||
12 |
Rated a single / back-to-back electric current breaking device group |
630/400 800/400(40KA) |
||||
13 |
Mechanical life |
Times |
10000 |
|||
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