Liyond, a trusted vacuum contactor manufacturer, provides a full range of LV, MV, and HV vacuum contactors for indoor use. Utilizing advanced vacuum interruption, our indoor vacuum contactors ensure safe, efficient circuit switching across diverse standards. Ideal for motor control, capacitor switching, and industrial automation, these vacuum magnetic contactors offer high reliability and minimal upkeep. Engineered for frequent switching in demanding environments, Liyond's vacuum magnetic contactor switches deliver superior performance and long service life. We adhere to global standards, offering robust solutions tailored to your specific electrical needs.
Quote Vacuum Contactor PriceLiyond Vacuum Contactor Features
Efficient Vacuum Arc Quenching: Superior vacuum interrupter technology provides strong quenching ability, ensuring rapid, secure circuit breaking. This extends lifespan and enhances safety with no arc external spraying.
Versatile Application Across Industries: Excelling in motor/capacitor control and power management across sectors, Liyond vacuum contactors offer dependable performance and a high operating frequency.
Unwavering Reliability & Durability: Built to high standards, our vacuum contactors ensure long-term, consistent performance with good pressure resistance, a long service life, small volume, light weight, long maintenance period, and no noise.
Different Models of Vacuum Contactor by Liyond
Liyond offers a comprehensive range of vacuum contactors tailored for diverse voltage and application requirements. Our vacuum magnetic contactor portfolio includes:
| Series | Voltage | Current Range | Frequency | Key Applications | Key Features |
| CKJ5 | Up to 1140V (Low) | 63A – 630A | 50Hz | Long-distance switching, frequent motor starting/stopping, flameproof starters. | Suitable for combination with protection devices. |
| CKJ20 | Below 1.6KV (Low) | 630A – 1250A | 50-60Hz | Frequent switching/breaking of motors, transformers, capacitor banks. | High current handling capability. |
| CKG3 | 7.2KV / 12KV (Med/High) | Up to 630A | 50-60Hz | Long-distance line control, frequent motor starting, replaces vacuum circuit breakers. | Offers 3-pole/4-pole options, mechanical/electrical interlocking. |
| JCZ5-12 | 10KV (High) | 160A – 630A | 50-60Hz | Frequent operation, handles short-circuit currents, reclosing operations. | High mechanical/electrical endurance, high reliability, conventional/solid-sealed poles, fixed/withdrawable mounting. |
To order Liyond vacuum contactors, please specify the model, drawing (if applicable), rated voltage/current, number of poles, control coil voltage, auxiliary switch requirement, self-lock preference, color, and quantity. For non-standard currents or customized models, please provide detailed specifications. Our standard colors are typically red, black, or light gray.
Vacuum Magnetic Contactor: Normal Operating Conditions
Altitude: Up to 2000 meters.
Temperature: -5°C to +40°C (Daily average ≤ 30°C).
Humidity: Daily average < 95% RH, Monthly average < 90% RH.
Environment: Free of steam, gas, corrosive deposits, salt fog, dust, explosives.
Vibration/Shock: No frequent or severe vibration/shock.
Mounting: Inclination ≤ 15° from vertical; typically Category III installation.
A vacuum contactor is an electrical switch designed for the safe and reliable control of medium and high voltage circuits, particularly in indoor installations. Often called a vacuum magnetic contactor due to its electromagnetic actuation, this robust device excels in frequently switching loads such as motors and capacitors. The vacuum contactor working principle centers on the exceptional insulating properties of a vacuum. When the contacts within the vacuum interrupter separate, an arc forms. This arc rapidly diffuses and is swiftly extinguished by the vacuum environment, preventing reignition. This efficient arc quenching mechanism contributes to the vacuum contactor's longer electrical life, reduced maintenance needs, and enhanced operational safety compared to traditional air-break contactors.
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