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AC Contactor For Power System Factory

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  • CJX2 Series Remote Switch Control AC Contactors Quick View
    CJX2 Series Remote Switch Control AC Contactors
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    CJX2 Series Remote Switch Control AC Contactors

    CJX2 Series Remote Switch Control AC Contactors

    The CJX2 series is a high-performance remote-controlled AC contactor designed for remote start/stop control of AC motors. It is also suitable for the frequent operation found in various power systems and automation equipment. Utilizing a high-quality electromagnetic system and silver alloy contacts, it features reliable operation, long life, and strong shock resistance. It operates stably within the AC-3 usage category, with a rated operating voltage up to 660V and a current range from 9A to 95A, meeting the control requirements of motors of varying power.

    The product's compact, modular design facilitates installation and maintenance, and includes optional mechanical and electrical interlocks for secure interlocking of multiple devices. The coil's low-power design allows for reliable engagement across a wide voltage range, while also providing surge suppression to effectively protect control circuits.

    The CJX2 series contactors are suitable for industrial equipment such as machine tools, fans, pumps, and conveyors, as well as applications such as building automation and lighting control. Their long mechanical life and low noise levels significantly enhance system stability. With an IP20 protection rating, some models offer expandable auxiliary contact sets to further meet complex control requirements, making them an ideal choice for automated power distribution.

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  • CJ19 Switching Capacitor AC Contactors Quick View
    CJ19 Switching Capacitor AC Contactors
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    CJ19 Switching Capacitor AC Contactors

    CJ19 Switching Capacitor AC Contactors

    The Chengxi CJ19 switching capacitor AC contactor, with its compact design and superior performance, is an ideal choice for control systems.

    This product offers high-capacity switching capabilities, ensuring stable operation under high loads. It also exhibits excellent arc resistance and an exceptionally long service life, significantly improving system efficiency and safety.

    The use of high-quality silver alloy contacts enhances conductivity, effectively preventing contact welding and ensuring contact reliability. The coil design focuses on low power consumption, achieving energy conservation and environmental protection, and reducing operating costs.

    Whether in industrial automation or power systems, the Chengxi CJ19 contactor provides reliable power control solutions, making it an ideal choice for improving system performance and ensuring safe operation.

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  • CJ20 Series AC Contactors for Power Systems Quick View
    CJ20 Series AC Contactors for Power Systems
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    CJ20 Series AC Contactors for Power Systems

    CJ20 Series AC Contactors for Power Systems

    The CJ20 series AC contactors are renowned for their compact design and wide range of applications. They are ideal for electrical control systems in industries such as machinery manufacturing, elevators, HVAC systems, and pumping stations.

    These contactors feature overload and short-circuit protection, ensuring safe operation and enhancing system stability. Their silver alloy contacts ensure conductivity and weld resistance, extending service life. The coil design emphasizes low power consumption, energy conservation, and environmental protection.

    The CJ20 series contactors offer a variety of rated currents and voltages to meet diverse load requirements, making them an ideal choice for building efficient and stable electrical control solutions.

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Chengxi Electric manufactures a range of AC contactors, including the CJX2, CJ19, and CJ20 series, widely used for remote switching control of AC motors. These contactors are suitable for frequent operation in power systems and automation equipment.

The CJX2, CJ19, and CJ20 series feature compact structures, strong switching capacity, excellent arc resistance, and long service life, effectively enhancing the efficiency and safety of control systems. Chengxi AC contactors utilize high-quality silver alloy contacts to improve conductivity and welding resistance, while their coils are designed for low power consumption, promoting energy savings and environmental protection.

To meet diverse customer application needs, Chengxi offers multiple models and installation options within these series and supports customized solutions to accommodate various load types and control environments. These products are extensively applied across industries such as machinery manufacturing, elevators, HVAC systems, and pumping stations, helping users build stable and efficient electrical control systems.

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Chengxi Electric Group Co., Ltd.

Chengxi Electric Group Co., Ltd.

Chengxi Electric Group Co., Ltd. is a China AC Contactor Manufacturer and Sale AC Contactor Factory . Equipped with modern industrial factory buildings and office facilities, we specialize in the production and operation of circuit breakers, dual power supplies (ATS), AC contactors, and other modern low-voltage electrical products. The company implements a complete and scientific quality management system. Through good faith and strong technical capabilities, our products have earned widespread recognition in the industry. ChengXi Electric adheres to a management philosophy of "Integrity, Pragmatism, Science, Rigor, and Solidarity," always focusing on customer needs and dedicated to the field of low-voltage electrical equipment. Relying on the power system and driven by market demands, ChengXi Electric has provided high-quality products and services to a diverse range of users over the years. We continue to expand our market presence, and our products are widely used in numerous domestic sectors, including electric power systems, nuclear power, national defense, petrochemicals, metallurgy, coal, railways, and more. They play a vital role in many national key projects, winning the trust of a growing number of customers and achieving an excellent reputation within the industry.

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    Group standard drafting unit
  • AAA-rated credit enterprise
    AAA-rated credit enterprise
  • Wenzhou Enterprise Technology Research and Development Center
    Wenzhou Enterprise Technology Research and Development Center
  • Star Enterprise
    Star Enterprise
  • High-tech enterprises
    High-tech enterprises

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Industry Knowledge Extension

How Does an AC Contactor Work?

An AC contactor is a type of electromagnetic switch used for making and breaking connections in an electrical circuit. The primary function of a contactor is to control the flow of current in an AC power system. Here's a step-by-step look at how it operates:

  • 1. Electromagnetic Operation: The contactor operates based on the principle of electromagnetic induction. When current flows through the coil, it creates a magnetic field that attracts a metal armature.
  • 2. Contact Engagement: The armature's movement causes the contacts (usually three) to close, thereby completing the circuit and allowing current to flow through the main contacts.
  • 3. High Current Handling: The main contacts are designed to handle high currents and are typically made of materials that can withstand high temperatures and electrical stress.
  • 4. Release Mechanism: When the current in the control coil is interrupted, the magnetic field collapses, and a spring mechanism releases the armature, causing the contacts to open and interrupt the current flow.
  • 5. Safety and Automation: Contactors are often used in automated systems where safety is a concern, as they can be remotely controlled and can handle high currents that would be dangerous for a human to manage directly.

What Are the Advantages of AC Contactors for Power Systems?

AC contactors offer several advantages that make them indispensable in power systems. Here are some key benefits:

1. Remote Operation: Contactors can be controlled remotely, which is beneficial in environments where manual operation is not feasible or safe.

2. High Current Switching: They are capable of switching high currents, making them suitable for industrial applications where large amounts of power need to be controlled.

3. Reliability: AC contactors are designed to withstand repeated operations without failure, ensuring reliable performance over time.

4. Safety: By automating the switching process, contactors reduce the risk of electrical shock to operators.

5. Efficiency: Contactors can help in reducing energy waste by ensuring that power is only supplied when needed, thus improving the overall efficiency of the system.

6. Versatility: They can be used in a variety of applications, from simple motor control to complex automation systems.

7. Maintenance Reduction: Due to their robust design, contactors require less frequent maintenance compared to other types of switches.

What Causes Heavy-Duty AC Contactors to Fail?

Despite their robust design, heavy-duty AC contactors can fail under certain circumstances. Here are some common causes of failure:

Overloading: If a contactor is subjected to currents beyond its rating, it can overheating and eventual failure.

Arcing: When the contacts open, an electrical arc can form, which can cause damage to the contacts over time, increased resistance and potential failure.

Wear and Tear: Like any mechanical component, contactors can wear out due to the repetitive opening and closing of the contacts.

Corrosion: Exposure to corrosive environments can damage the contacts and other components, poor conductivity and failure.

Misalignment: If the contacts become misaligned, they may not make proper contact, poor electrical connections and potential failure.

Contaminated Environments: Dust, dirt, and other contaminants can accumulate on the contacts, affecting their ability to make and break the circuit properly.

Voltage Surges: Sudden voltage surges can damage the contactor's coil, failure.

Incorrect Installation: Improper installation can mechanical stress on the contactor, causing it to fail prematurely.

AC contactors are critical components in power systems, offering a range of benefits from remote operation to increased safety. However, they are not immune to failure, and understanding the common causes can help in maintaining their longevity and ensuring the reliability of the power systems they control. Regular maintenance, proper installation, and selecting the right contactor for the application are key to preventing failures and ensuring the efficient operation of AC contactors.