Vacuum Circuit Breaker with Permanent Magnetic Actuator (ZN3A-12 )
This series of high-voltage permanent magnet vacuum switches, this series of permanent magnet vacuum switches are made of high-quality circuit breaker switch tubes, with advanced and reliable bistable permanent magnet mechanisms and intelligent controllers, with anti-hopping function, small closing and opening current, and can also realize power-off and opening functions. The closing and opening speed is fast, the opening distance and stroke are large, the bounce is small, the synchronicity is stable, and it has excellent breaking function. The insulator is made of epoxy resin, and the frame is made of metal structure, which is reasonable and beautiful in structure and stable in performance. It is suitable for switching the load of large-capacity capacitor bank, which is safe and reliable.
It has anti-hopping function, and the closing and opening current is small.
It can realize the function of power-off and switching. The closing and opening speed is fast.
The opening distance and stroke are large, the bounce is small, and the synchronicity is stable.
| The name of the parameter | Model | ZN3A-630/12 | ZN3A-800/12 | ZN3A-1000/12 | ZN3A-1250/12 |
| Rated voltage of the main circuit | (KV) | 12 | 12 | 12 | 12 |
| Rated current of the main circuit | (A) | 630 | 800 | 1000 | 1250 |
| Rated frequency | (HZ) | 50 | 50 | 50 | 50 |
| Rated short-circuit interrupting current | (KA) | 12.5/16/20 | 12.5/16/20 | 12.5/16/20 | 12.5/16/20 |
| Rated short-circuit closing current | (KA) | 31.5 | 31.5 | 31.5 | 31.5 |
| Rated short-circuit withstand current | (KA) | 2.5/16/20 | 2.5/16/20 | 2.5/16/20 | 2.5/16/20 |
| Rated short-circuit duration | (S) | 3 | 3 | 3 | 3 |
| Number of short circuit breaks | (times) | 25 | 25 | 25 | 25 |
| Mechanical life of the permanent magnet mechanism | (10,000 times) | 10 | 10 | 10 | 10 |
| Power frequency withstand voltage of main circuit (fracture) | (KV) | 42 | 42 | 42 | 42 |
| Phase-phase/phase-to-ground power frequency withstand voltage | (KV) | 42 | 42 | 42 | 42 |
| Rated lightning breakdown withstand voltage | (KV) | 75 | 75 | 75 | 75 |
| Terminal pressure | (mm) | >200 | >200 | >200 | >200 |
| Contact opening distance | (mm) | 9±1 | 9±1 | 9±1 | 9±1 |
| Overtravel | (mm) | 2±0.5 | 2±0.5 | 2±0.5 | 2±0.5 |
| The main circuit contacts the nozzle | (μΩ) | ≤100 | ≤100 | ≤100 | ≤100 |
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Tel：+86 15538537280
Email：lycnelectric@163.com
Add：No. 9 Duyu Street, Luolong District, Luoyang City, Henan Province
