CKG/CKJ3-12kV Series 3-Pole High-Voltage AC Vacuum Contactor – 160A/250A/400A/630A Heavy-Duty Magnetic Switch for Mining & Industrial Control
The CKG/CKJ3-12kV Series 3-Pole Vacuum Contactor is a high-performance electrical component designed for AC 50Hz power networks with a rated voltage of 12kV. Engineered for the remote making and breaking of circuits, it is exceptionally well-suited for the frequent starting and stopping of AC motors in demanding environments. This series is a preferred choice for mine explosion-proof electrical accessories, airport lighting control, and street lamp feeding networks. Featuring an ultra-long mechanical life of 1,000,000 operations and a vacuum-sealed design that reduces oxidation, it ensures high stability and low maintenance costs for your industrial power systems.
CKG3-12 Series 12kV Three-Pole High-Voltage AC Vacuum Contactor (160A – 630A)
Product Overview
The CKG3-12 Series is a heavy-duty indoor high-voltage AC vacuum contactor designed for three-phase power networks operating at 50Hz – 60Hz with a rated voltage of 12kV. Specifically engineered for the remote making and breaking of circuits, it is an ideal solution for the frequent starting and control of high-voltage AC motors. This series is widely utilized as a reliable component in mine explosion-proof electrical accessories, airport lighting control systems, and street lamp feeding networks.
Core Features & Technical Advantages
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Ultra-Long Operational Life: Built for extreme industrial durability with a mechanical life of up to 1,000,000 operations
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High-Quality Material Construction: Utilizes premium anti-corrosion and anti-fouling materials with high temperature and oxidation resistance to ensure a long service life.
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Enhanced Safety & Stability: Features a reinforced, thickened bottom plate for a compact and safe structure, combined with high-quality polyethylene materials that are resistant to aging.
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Robust Insulation: The red high-strength insulation frame provides a main circuit frequency withstand voltage of 42kV.
Technical Specifications
| Item | Unit | CKG3-12/160 | CKG3-12/250 | CKG3-12/400 | CKG3-12/630 |
| Rated Voltage | V | 12000 | 12000 | 12000 | 12000 |
| Rated Current | A | 160 | 250 | 400 | 630 |
| Making Capacity | A | 100 times | 100 times | 100 times | 100 times |
| Breaking Capacity | A | 25 times | 25 times | 25 times | 25 times |
| Mechanical Life | Ops. | 1,000,000 | 1,000,000 | 1,000,000 | 1,000,000 |
| Weight | kg | 30 | 30 | 30 | 30 |
Normal Working Conditions
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Altitude: Should not exceed 1,000 meters above sea level.
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Ambient Temperature: Operating range from -5°C to +40°C.
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Relative Humidity: Not higher than 50% when the maximum temperature is +40°C.
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Pollution Degree: Classified as Class 3 for industrial environments.
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