Medium/High Voltage Vacuum Contactor

Key Advantages of Liyond Medium/High Voltage Vacuum Contactors

Our medium/high voltage vacuum contactors are engineered for superior performance in demanding power networks, offering distinct benefits:

Exceptional Endurance for Heavy Duty: Designed for frequent operation, our medium voltage vacuum contactors boast high mechanical life (up to 1,000,000 cycles) and impressive short-circuit breaking capabilities (up to 50 times at full capacity), ensuring long-term reliability even in heavy-load applications.

High Operational Reliability & Safety: Featuring stable vacuum arc extinguishing and high operational reliability, our MV vacuum contactors are suitable for auto-reclosing operations. Their robust design provides enhanced safety for critical circuits up to 12KV.

Minimal Maintenance & Robust Design: Enjoy significantly reduced maintenance. Features like vertical insulation cylinders resist environmental influences, while integrated solid insulated poles enable truly maintenance-free operation, cutting down on upkeep time and cost.

Versatile Installation & Climate Resilience: Our medium voltage contactors offer flexible installation (fixed, withdrawable, frame-mounted) for diverse switchgear layouts. Their design, including special insulation, ensures reliable performance across various climates.

Typical Applications of Medium/High Voltage Vacuum Contactors

Liyond’s medium/high voltage vacuum contactors are versatile components critical to robust power control across various industries:

Frequent Motor Starting & Switching: Ideal for remote connection and disconnection of lines, and frequent starting/controlling of AC motors in networks up to 12KV. Essential for heavy industrial machinery and production lines.

Alternative to Vacuum Circuit Breakers: They are particularly suitable for combining with fuses and various protection devices to form integrated units, serving as a cost-effective and reliable alternative to traditional vacuum circuit breakers.

Specialized Hoisting & Mining Equipment: Our 3-pole, 4-pole, and 5-pole contactors are custom-designed for hoisting machine electrical control and power braking. Integrated mechanical/electrical interlocks provide dual safety protection for reversing applications like mine hoists.

Transformer & General Line Switching: Beyond motors, the high voltage vacuum contactors provide reliable switching for transformers and general power lines in medium/high voltage networks. Their frequent operation capability ensures smooth power distribution and control.