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CJ19-95 switching capacitor contactor

CJ19-95 switched capacitor contactor is a high-performance electrical device used for switching and controlling capacitors. It has very fast response, low energy consumption, and high reliability, thereby it is used widely in the field of power systems and industrial automation for improving power quality and optimizing the operating efficiency of equipment. The design of the contactor itself also gives protection from overloading and short-circuiting the capacitor, assuring safe and smooth operation of the system. 

    Main technical parameters

    Product model name CJ19-95
    Electrical life(10000 cycles) 10
    Rated current le (380V)A 63
    Controllable capacitor capacity(kvar) 220V 22
    380V 40
    Rated insulation voltage (V) 500
    Surge suppression capability 20le
    Action conditions Actuation:(85%~110%Us;Release:(20%-75%)Us
    Coil power (VA) start/hold 200/20
    Auxiliary contact control capacity AC-15 360VA;DC-3 33W
    Weight (kg) 1.5

    Working Conditions

    Surrounding air temperature

    • Applicable temperature range: -5℃ to +40℃
    • The 24-hour average temperature must be kept at or below +35°C.

    Altitude:

    • The installation altitude shall not exceed 2000 meters.

    Weather conditions

    • When the temperature reaches a maximum of +40°C, the relative humidity must not surpass 50%. At lower temperatures, higher humidity levels are acceptable, allowing up to 90% relative humidity at 20°C. It is essential to implement special measures to address potential condensation resulting from temperature fluctuations.

    Installation conditions:

    • The mounting surface must not be tilted more than +5° or -5° from the vertical.

    Shock and Tremor

    • The product should be installed in an environment without significant shaking, shock and vibration to ensure optimal performance and extend service life.

    Structural features

    The CJ19 - 95 changeover capacitor contactor features a compact structural design, is equipped with highly reliable silver - alloy contacts and an efficient electromagnetic drive system, ensuring rapid response and stable switching. Its spring reset mechanism prevents contact adhesion and enhances safety. Meanwhile, the built - in multifunctional auxiliary circuit provides overload and short - circuit protection.

    Working Conditions

    Appearance and installation dimensions

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    Model Amax Bmax Cmax Remarks
    CJ19-95 135 87 158 In addition to screw installation, the contactor can also be installed on a 35mm or 75mm mounting rail.

    The alloy contacts have excellent conductive properties, ensuring efficient current transmission and remain stable in high temperature environments, reducing the risk of overheating failure. At the same time, they significantly reduce contact resistance, thereby increasing the overall efficiency of the system.

     Using 32 laminated iron cores in a switching capacitor contactor enhanced magnetic performance, which improves operational efficiency and reliability, while also reducing energy consumption and increasing overall energy efficiency. Additionally, this multi-laminated design enhances the durability of the contactor under high loads, extending its lifespan and improving response speed for quicker switching.

    The use of sensitive springs can achieve fast response, thereby increasing the switching speed of the system. At the same time, it provides stable pressure, ensuring reliable contact and reducing the risk of poor contact. In addition, sensitive springs have good durability, can withstand frequent operations, extend service life, and allow more precise pressure adjustment to adapt to different working conditions.

    Industrial Equipment: Commonly utilized for capacitor compensation in manufacturing machinery and production lines.

          Power System: Used for capacitor bank switching and control in power systems to ensure the stability and reliability of power supply. By precisely controlling the connection and disconnection of capacitors, the CJ19-95 switching capacitor contactor can effectively regulate reactive power and optimize the power factor, thereby improving the overall efficiency of the power grid. In addition, it can also reduce power loss, reduce the burden on power equipment, and extend the service life of equipment. 

    Power factor optimization: By improving the power factor, the efficiency of electric energy use can be effectively optimized. This not only helps to reduce reactive power loss in the power system, but also reduces the burden on power equipment and reduces electricity bills. The optimized power factor makes the power system more efficient and improves the performance and reliability of the equipment.

     

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