CKG3-12kV Single-Pole Permanent Magnet Vacuum Contactor – 160A/250A/400A/630A High-Voltage AC Switch for Mining & Metallurgy
The CKG3-12kV Single-Pole Vacuum Contactor is a high-performance switching solution designed for AC 50Hz power systems with rated voltages up to 12kV. Utilizing advanced permanent magnet technology, this contactor provides superior reliability and energy efficiency for the remote connecting and breaking of lines. It is specifically engineered for frequent starting of electric motors, controlling electric furnace transformers, and managing high-voltage capacitor reactive power compensation devices. With a robust design capable of operating in extreme temperatures from -40°C to +40°C, it is an ideal replacement product for demanding industries such as mining, metallurgy, and petrochemicals.
CKG3-12kV Single-Pole Permanent Magnet Vacuum Contactor (160A – 630A)
Product Overview
The CKG3-12kV Single-Pole Series is a high-performance indoor vacuum contactor specifically designed for AC 50Hz power systems with rated voltages up to 12kV. Utilizing advanced permanent magnet operating technology, this contactor provides a more reliable and energy-efficient solution compared to traditional electromagnetic systems. It is an ideal replacement product for the remote connecting and breaking of circuits, frequent motor starting, and reactive power compensation in demanding industrial sectors like metallurgy, mining, and petrochemicals.
Core Features & Technical Advantages
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High-Efficiency Permanent Magnet Mechanism: Employs a DC magnetic system and power module storage for degaussing, ensuring stable operation and reduced power consumption.
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Specialized Single-Pole Structure: Features a compact, vertically-aligned insulation frame with a high-durability ceramic vacuum interrupter tube.
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Extreme Environment Reliability: Engineered to perform in ambient temperatures ranging from -40°C to +40°C and altitudes up to 3,000 meters.
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Exceptional Mechanical Life: Rated for up to 1,000,000 operations, making it suitable for high-frequency switching tasks.
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Precision Performance: Maintains a precise contact opening distance of 5 ± 0.5mm and overtravel of 1.5 ± 0.3mm for consistent circuit breaking.
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Seismic Resistance: Certified for safe operation in areas with an earthquake intensity of 8 degrees or below.
Technical Specifications
| Item | Unit | 160/12 | 250/12 | 400/12 | 630/12 |
| Main Circuit Rated Voltage | kV | 12 | 12 | 12 | 12 |
| Main Circuit Rated Current | A | 160 | 250 | 400 | 630 |
| Breaking Capacity (A/10 times) | A | 1280 | 2000 | 3200 | 5000 |
| Limit Breaking Capacity | A | 3200 | 4000 | 4500 | 6300 |
| Mechanical Life | times | 1,000,000 | 1,000,000 | 1,000,000 | 1,000,000 |
| Main Frequency Withstand | kV | 32 | 32 | 32 | 32 |
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