CKG4-10FC Series 12kV High Voltage AC Vacuum Contactor – 160A/250A/400A/630A Magnetic Switch for Electrical Panels & Power Distribution
The CKG4-10FC Series High Voltage AC Vacuum Contactor is specifically engineered for high-performance switching in 12kV power systems. Designed for frequent operation, this contactor provides reliable remote control for heavy-duty electrical equipment, including AC motors, power transformers, and capacitor banks. Available in rated currents from 160A to 630A, its robust construction and high-grade insulation make it a trusted choice for mining enterprises, industrial plants, and complex power distribution networks.
CKG4-10FC Series 12kV High Voltage AC Vacuum Contactor (160A – 630A)
Product Overview
The CKG4-10FC Series is a high-performance AC high-voltage vacuum contactor designed for the demanding requirements of 12kV power distribution systems. It is an ideal solution for frequent operation and the remote control of AC motors, transformers, and capacitor banks in mining enterprises, industrial plants, and utility networks. Its robust vacuum-sealed technology ensures superior arc extinguishing and safe electrical switching.
Core Features & Benefits
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Superior Arc Extinguishing: Equipped with a reliable vacuum chamber that ensures stable performance and prevents external arcing during switching.
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Long Operational Life: Designed for durability with a mechanical life of up to 500,000 operations and an electrical life (AC-3) of 250,000 operations.
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High-Frequency Performance: Specifically optimized for high-frequency switching and overload protection in heavy-duty industrial environments.
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Compact & Robust Design: Features a compact integrated structure with high-visibility red insulation poles and a rugged metal control enclosure for stable operation.
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Low Maintenance: The vacuum-sealed contacts require minimal maintenance compared to traditional air-type contactors.
Technical Specifications
| Item | Specification |
| Rated Operating Voltage ($U_e$) | 12kV |
| Rated Current ($I_e$) | 160A, 250A, 400A, 630A |
| Power Frequency Withstand Voltage | 42kV |
| Lightning Impulse Withstand Voltage | 75kV |
| Rated Breaking Capacity | 25 times |
| Rated Closing Capacity | 100 times |
| Rated Opening Distance | 5.5 ± 0.5mm |
| Overstroke | ≥ 1.5mm |
| Closing Synchronism | ≤ 2ms |
| Product Weight | 25kg |
Typical Applications
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Switchgear and Control Panels: Ideal for high-voltage panel integration.
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AC Motor Control: Especially in metallurgy and mining where frequent starting is required.
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Transformer Switching: Reliable management of power transformer connections.
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Capacitor Bank Control: Precise switching for power factor correction.
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