ZN63 Side-mounted VCB
KEY WORDS:High pressure vacuum switch
Classification：
DETAILS
Description:
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 | ||
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