ZN63(VS1)-12 side-mounted type vacuum circuit breaker is a kind of indoor high voltage switch device which is used in the AC three-phase power system of frequency 50HZ, rated voltage10-12KV to be the protection and control unit. It is especially suitable to the place requiring frequent operations.
Technical data:
|
NO |
item |
unit |
Data |
||
|
1 |
rated voltage |
KV |
12 |
||
|
2 |
rated current |
A |
630,1250 1600,2500 |
||
|
3 |
rated short-circuit breaking current |
KA |
20/25 |
31.5 |
|
|
4 |
Rated short-circuit closing current (peak) |
KA |
63 |
80 |
|
|
5 |
opening times of rated short-circuit breaking current |
times |
50 |
||
|
6 |
rated operating sequence |
|
O-0.3s-CO-180s-CO |
||
|
7 |
rated insulation level |
1min power frequency voltage |
kV |
75 |
|
|
lightning impulse withstand voltage (peak) |
42 |
||||
|
8 |
rated thermal stability current(virtual value) |
KA |
20/25 |
80 |
|
|
9 |
rated dynamic current(peak) |
KA |
60 |
80 |
|
|
10 |
secondary circuit power frequency withstand voltage(1min) |
V |
2000 |
||
|
11 |
rated thermal stability time |
S |
4 |
||
|
12 |
Single or back-to-back capacitor group opening current |
A |
630/400 |
||
|
13 |
mechanism life |
times |
10000 |
||
