| Customization: | Available |
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| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Energy-storage Type |
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The ZN63A(VS1)-12 Model indoor high voltage 12kV 3 Pole High Voltage Vacuum Circuit Breaker is designed for power systems with a rated voltage of 12kV. It serves as a protective and control unit for power grid and industrial equipment, compatible with switchgear panels such as KYN28(GZS1), XGN, and GG-1A. Related products include isolated handcart, fuse handcart, and voltage transformer handcart.
| serial number | project | units | data | |||
| 1 | The rated voltage | kV | 12 | |||
| 2 | Rated frequency | Hz | 50 | |||
| 3 | Rated current | A | 630~1250 | 1250 | 1250 | |
| 4 | Rated short circuit breaking current | kA | 20 | 25 | 31.5 | |
| 5 | Rated short circuit closing current | kA | 50 | 63 | 80 | |
| 6 | Rated peak tolerable current | kA | 50 | 63 | 80 | |
| 7 | 4S rated short circuit resistance current | kA | 20 | 25 | 31.5 | |
| 8 | Rated insulation level | Power frequency withstand voltage (before and after rated break) | kA | 42 (fracture48) |
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| Impact withstand voltage (before and after rated break) | kA | 75 (fracture85) |
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| 9 | Rated sequence of operation | points-0.3s-us points-180s-us points | ||||
| 10 | Mechanical life | next |
10000 | |||
| 11 | Rated short circuit breaking current breaking times | next |
50 | |||
| 12 | Operating Mechanism Rated Closing Voltage (DC) | V | 110,220 | |||
| 13 | Rated tripping voltage of operating mechanism (DC) | V | 110,200 | |||
| 14 | From contact | mm | 11±1 | |||
| 15 | Overstock (compression length of contact spring) | mm | 3.5±0.5 | |||
| 16 | Three-phase points, closing bounce time | ms | ≤2 | |||
| 17 | Contact closing bounce time | ms | ≤2 | |||
| 18 | Average brake speed | m/s | 1.1±0.2 | |||
| 19 | Average closing speed | m/s | 0.6±0.2 | |||
| 20 | Break-brake time | At the highest operating voltage | S | ≤0.05 | ||
| At the lowest operating voltage | S | ≤0.08 | ||||
| 21 | Closing time | S | 0.1 | 50 | ||
| 22 | Main loop resistance of each phase | μΩ | 60 | |||
| 23 | Allowable wear cumulative thickness of dynamic and static contacts | mm | 3 | |||
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