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Vacuum contactors JCZ1-JCZ8C-24 kV series
This series of high voltage vacuum contactors adopts high quality vacuum arc chutes combined with metal frame and insulation supports to provide superior breaking performance.
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Product Description
This series of high voltage vacuum contactors adopts high quality vacuum arc chutes combined with metal frame and insulation supports to provide superior breaking performance. Contactors are designed for use in single-phase or two-phase AC electrical networks with voltages up to 24 kV for remote switching on and off, as well as for frequent starts and control of active, inductive and capacitive loads.
The JCZ1 and CZ8C series 24kV high-voltage vacuum contactors are often used as the main grounding switch in power system protection circuits, including arc extinguishing in signal sources, resonance damping in neutral grounding, and load blocks. They are distinguished by their compact size, high speed when turning on and off, as well as high breaking capacity. Can be used in electrical power systems with a voltage of 24 kV or in systems with a voltage of 12 kV at altitudes of more than 4000 meters above sea level.
| Parameter | 160,250/24 | 400/24 | 630/24 | 800/24 | 1000,1250/24 |
| Rated voltage of the main circuit, kV | 24 | 24 | 24 | 24 | 24 |
| Rated current of the main circuit, A | 160,250 | 400 | 630 | 800 | 10,001,250 |
| Switching capacity of the main circuit (switching on), A / 100 cycles | 2500 | 4000 | 6300 | 8000 | 10000 |
| Switching capacity of the main circuit (shutdown), A / 25 cycles | 2000 | 3200 | 5000 | 6000 | 8000 |
| Ultimate breaking capacity, A / 3 cycles | 4000 | 4500 | 6300 | 8000 | 10000 |
| Mechanical wear resistance, 10 thousand cycles | 100 | 100 | 100 | 100 | 100 |
| Mechanical wear resistance of the latch mechanism, 10 thousand cycles | 10 | 10 | 10 | 10 | 10 |
| Electrical durability AC3, 10 thousand cycles | 25 | 25 | 25 | 25 | 25 |
| Wear resistance of the mechanism with permanent magnets, 10 thousand cycles | 10 | 10 | 10 | 10 | 10 |
| Power frequency test voltage of the main circuit (with open contacts), kV | 65 | 65 | 65 | 65 | 65 |
| Power frequency test voltage (between phases / phase-ground), kV | 65 | 65 | 65 | 65 | 65 |
| Test lightning impulse voltage, kV | 125 | 125 | 125 | 125 | 125 |
| Rated operating frequency, cycles/h | 150 | 150 | 150 | 150 | 150 |
| Operating frequency of permanent magnet mechanism, cycles/hour | 30 | 30 | 30 | 30 | 30 |
| Contact pressure, N | >100 | >100 | >100 | >100 | >100 |
| Gap between contacts, mm | 10±1 | 10±1 | 10±1 | 10±1 | 10±2 |
| Contact overtravel, mm | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | 2.5±0.5 | 1.5±0.5 |
| Main circuit resistance, µOhm | ≤200 | ≤200 | ≤200 | ≤150 | ≤150 |
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