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CKJ40 Series Low Voltage Vacuum Contactor
This series of high-performance vacuum contactors meets the requirements of the GB14048.4 standard and, in terms of its technical characteristics, reaches the advanced domestic and world level.
Description
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Product Description
This series of high-performance vacuum contactors meets the requirements of the GB14048.4 standard and, in terms of its technical characteristics, reaches the advanced domestic and world level. The contactors are designed for use in AC power networks with a frequency of 50–60 Hz with a rated main circuit voltage of 1.14–3 kV and a rated current of 1000 A to 4000 A. Particularly suitable for use as a main switch on the AC side in high-power inverters in wind and solar power plants. They have a high price-quality ratio and are an optimal replacement for imported analogues.
Design Features
1. Fully sealed design - dustproof, aging-resistant, aesthetic, maintenance-free.
2. Use of specialized military quality vacuum arc extinguishing chambers - high switching capacity, good heat dissipation.
3. Excellent switching characteristics and stability of on-off processes.
4. Possibility of frequent switching - mechanical life is more than 300,000 cycles.
5. Particularly suitable for use as the main switch on the AC side in high-power inverters in wind and solar power plants, as well as for frequent switching of capacitor banks, it features stable and reliable operation.
| Parameter | 1000/1250/1.14~2kV | 1600/2000/1.14~2kV | 2500/3200/4000/1.14~3kV |
| Rated voltage of the main circuit, V | 1.14~3 | 1.14~3 | 1.14~3 |
| Rated current of the main circuit, A | 1000, 1250 | 1600 | 2500/3200/4000 |
| Switching capacity of the main circuit (switching on), A / 100 cycles | 8000 | 10000 | 15000/18000/20000 |
| Switching capacity of the main circuit (shutdown), A / 10 cycles | 8000 | 8000 | 10000 |
| Ultimate breaking capacity, A / 3 cycles | 10000 | 10000 | 12000 |
| Electrical durability AC3, 10 thousand cycles | 30 | 30 | 30 |
| Mechanical wear resistance, 10 thousand cycles | 100 | 100 | 100 |
| Rated operating frequency AC3, cycles/h | 200 | 200 | 200 |
| Gap between contacts, mm | 5±0.5 | 5±0.5 | 5±0.5 |
| Contact overtravel, mm | 2±0.5 | 2±0.5 | 2±0.5 |
| Auxiliary circuit control voltage, V | AC or DC: 36 / 110 / 127 / 220 / 380 or customized | ||
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