ZW32-12 630A-20 12KV Vacuum Circuit Breaker Outdoor Use 3 Pole
ZW32-12/630A-20 outdoor high voltage vacuum circuit breaker
product information
Product name: ZW32-12 outdoor vacuum circuit breaker
Category: high voltage components
Product introduction: ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor power distribution device with a rated voltage of 12kV and a three-phase AC 50Hz.
Overview of ZW32-12 outdoor vacuum circuit breaker
The ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as the circuit breaker) is an outdoor power distribution device with a rated voltage of 12kV and a three-phase AC 50Hz. Mainly used for breaking and closing the load current, overload current and short circuit current in the power system. It is suitable for protection and control in power distribution systems of substations and industrial and mining enterprises, and places where rural power grids are frequently operated.
This circuit breaker has the characteristics of small size, light weight, anti-condensation, and maintenance-free, and can adapt to harsher weather conditions and dirty environments.
The main technical parameters
| Serial number | project | unit | parameter |
| 1 | Rated voltage | KV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 630 |
| 4 | Rated short-circuit breaking current | KA | 20 |
| 5 | Rated peak withstand current (peak) | KA | 50 |
| 6 | Rated short-time withstand current | KA | 20 |
| 7 | Rated short-circuit making current (peak value) | KA | 50 |
| 8 | Mechanical life | Second-rate | 10000 |
| 9 | Rated short-circuit breaking current breaking times | Second-rate | 30 |
| 10 | Power frequency withstand voltage (1min): (wet) (dry) phase to phase, to ground/fracture | KV | 42/48 |
| 11 | Lightning impulse withstand voltage (peak) phase to phase, to ground/fracture | KV | 75/85 |
| 12 | 1min power frequency withstand voltage of secondary circuit | KV | 2 |
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