| Brand | HK Electrical |
| Model NO. | JCZ8G 10kV/12 kV Vacuum Contactor for high-altitude applications |
| Rated voltage | 12kV |
| Rated normal current | 800A |
| Rated frequency | 50/60Hz |
| Series | JCZ8G |
This series of high-altitude high-voltage vacuum contactors have been developed by our company in response to market demands. We use high-quality vacuum interrupters , which achieves military-grade quality. The structure consists of a metal frame and insulating supports, ensuring robustness and reliability with more stable performance.
The main circuit center distance ranges from 190mm to 210mm. The main circuit vacuum arc-extinguishing chamber features a sealed structure, providing stable and reliable insulation performance with a large creepage distance, large stroke, and strong breaking capacity.
It is suitable for plateau and high-altitude areas with altitudes between 2000 and 4000 meters. It is used for long-distance switching, analysis, and frequent starting and controlling of AC motors, transformers, and capacitors, and other applications. There are two types available: electromagnetic holding and permanent magnet holding.
The structure consists of a metal frame and insulating supports, ensuring reliability with more stable performance.The main circuit center distance ranges from 190mm to 210mm. The main circuit vacuum arc-extinguishing chamber features a sealed structure, providing stable and reliable insulation performance with a large creepage distance,large stroke, and strong breaking capacity.
It is suitable for plateau and high-altitude areas with altitudes between 2000 and 4000 meters. It is used for long-distance switching, analysis, and frequent starting and controlling of AC motors, transformers, and capacitors, and other applications.
There are two types available: electromagnetic holding and permanent magnet holding.
| Tech. parameters | Unit | 160/12kV | 250/12kV | 400/12kV | 630/12kV | 800/12kV |
| Rated voltage of Main Loop | (kV) | 12 | 12 | 12 | 12 | 12 |
| Rated current of Main Loop | (A) | 160 | 250 | 400 | 630 | 800 |
| Main loop making capacity | (A/100times) | 1600 | 2500 | 4000 | 6300 | 8000 |
| The main circuit is on/off | (A/25times) | 1280 | 2000 | 3200 | 5000 | 6000 |
| Ultimate breaking capacity | (A/3times) | 3200 | 4000 | 4500 | 6300 | 8000 |
| Mechanical life | (10,000 times) | 100 | 100 | 100 | 100 | 100 |
| Electrical endurance AC3 | (10,000 times) | 25 | 25 | 25 | 25 | 25 |
| Power-frequency withstand voltage of main circuit (fracture) | (kV) | 48 | 48 | 48 | 48 | 48 |
| Phase-phase/phase-to-ground power frequency withstand voltage | (kV) | 50 | 50 | 50 | 50 | 50 |
| Lightning impulse withstand voltage | (kV) | 75 | 75 | 75 | 75 | 75 |
| Rated operating frequency | (Times/h) | 300 | 300 | 300 | 300 | 300 |
| Terminal voltage | (N) | >100 | >100 | >100 | >100 | >100 |
| Clearance between open contacts | (mm) | 7-0.5 | 7-0.5 | 7-0.5 | 7-0.5 | 7-0.5 |
| Overtravel | (mm) | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 | 1.5-0.5 |
| weight | (KG) | 35 | 35 | 35 | 35 | 35 |
| Main loop resistance | (μΩ) | ≤200 | ≤200 | ≤200 | ≤200 | ≤200 |
| Secondary control voltage | (V) | AD or DC: 110/220/380 or customized | ||||
It delivers a large stroke, strong breaking ability, minimal bounce, stable coil performance, and excellent triphase synchronization.
The specialized vacuum interrupters undergo a high-current aging process and are securely integrated with a solid metal frame to ensure maximum safety.
This series is available in both electromagnetic holding type and permanent magnet mechanism type.
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