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JCZ8G-12 Series High Altitude Vacuum Contactor
This series of high voltage vacuum contactors for high mountain areas is developed by our company in accordance with market needs. The contactors are equipped with high quality military grade vacuum arc chutes.
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Product Description
This series of high voltage vacuum contactors for high mountain areas is developed by our company in accordance with market needs. The contactors are equipped with high quality military grade vacuum arc chutes. The design consists of a metal frame and insulating supports, which ensures reliability and stable performance. The center distance of the main chain is 190–210 mm. Vacuum arc chutes of the main circuit are made with cast insulation, which ensures stability and reliability of insulating properties, increased leakage distance, long stroke of the mechanism and high breaking capacity. The contactors are designed to operate at altitudes from 2000 to 4000 meters above sea level, providing remote switching on and off, as well as frequent starting and control of asynchronous motors, transformers and capacitors. Available in two versions: with electromagnetic fixation and with magnetic fixation.
| Parameter | 160/12kV | 250/12kV | 400/12kV | 630/12kV | 800/12kV |
| Rated voltage of the main circuit, kV | 12 | 12 | 12 | 12 | 12 |
| Rated current of the main circuit, A | 160 | 250 | 400 | 630 | 800 |
| Switching capacity of the main circuit (switching on), A / 100 cycles | 1600 | 2500 | 4000 | 6300 | 8000 |
| Switching capacity of the main circuit (shutdown), A / 25 cycles | 1280 | 2000 | 3200 | 5000 | 6000 |
| Ultimate breaking capacity, A / 3 cycles | 3200 | 4000 | 4500 | 6300 | 8000 |
| Mechanical wear resistance, 10 thousand cycles | 100 | 100 | 100 | 100 | 100 |
| Electrical durability AC3, 10 thousand cycles | 25 | 25 | 25 | 25 | 25 |
| Power frequency test voltage of the main circuit (with open contacts), kV | 48 | 48 | 48 | 48 | 48 |
| Power frequency test voltage (between phases / phase-ground), kV | 50 | 50 | 50 | 50 | 50 |
| Test lightning impulse voltage, kV | 75 | 75 | 75 | 75 | 75 |
| Rated operating frequency, cycles/h | 300 | 300 | 300 | 300 | 300 |
| Contact pressure, N | >100 | >100 | >100 | >100 | >100 |
| Gap between contacts, mm | 7±0.5 | 7±0.5 | 7±0.5 | 7±0.5 | 7±0.5 |
| Contact overtravel, mm | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | 2.5±0.5 | 1.5±0.5 |
| Weight, kg | 35 | 35 | 35 | 35 | 35 |
| Main circuit resistance, µOhm | ≤200 | ≤200 | ≤200 | ≤200 | ≤200 |
| Auxiliary circuit control voltage, V | AC or DC: 110 / 220 / 380 or customized | AC or DC: 110 / 220 / 380 or customized | AC or DC: 110 / 220 / 380 or customized | AC or DC: 110 / 220 / 380 or customized | AC or DC: 110 / 220 / 380 or customized |
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