October 15, 2025
The Liyond CKG3 Vacuum Contactor Series is engineered for superior performance in medium-voltage AC power systems, operating at frequencies of 50−60Hz. As a specialized vacuum contactor manufacturer, we designe this series to handle main circuit rated voltages up to 7.2kV and 12kV, with rated currents below 630A, the CKG3 series is the ideal choice for remote switching applications and the frequent starting and control of AC motors.
A hallmark of the CKG3 is its exceptional versatility in configuration. It is available in a comprehensive range of specifications, including single pole, 2 poles, 3 poles, 4 poles, and 5 poles, ensuring a perfect match for any complex system requirement. Specifically, the 3-pole and 4-pole configurations (3 pole vacuum contactor) are well-suited for applications demanding motor reverse control and dynamic braking. The robust 5-pole design is particularly utilized in specialized environments like mining hoists, enabling forward and reverse conversion with dual mechanical and electrical interlocking for enhanced safety.
The CKG3 series of MV vacuum contactor is highly adaptable and can be integrated with fuses and various protective components to form a compact power solution that often serves as an alternative to a vacuum circuit breaker. This flexibility, combined with reliable interlocking mechanisms, provides double layer protection, making the CKG3 a foundational component for reliable and safe medium-voltage power distribution.
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