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CJ19 Series switching capacitor contactor

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0102030405
CJ19-43 switching capacitor contactor
CJ19-43 switching capacitor contactor

CJ19-43 switching capacitor contactor

The CJ19 switching capacitor contactor is appropriate for use in AC power systems at frequencies of 50Hz or 60Hz, with a maximum voltage of 380V. It is utilized for the operation or switching of low-voltage capacitor control devices in low-voltage reactive power circuits. It features an inrush current protection mechanism to lessen the impact of inrush current when closing and to avert overload when opening.

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    Main technical parameters

    Product Type  10
    Electrical life(10000 times） 29
    Rated current for 380V (A 10
    Controllable capacitor capacity(kvar) 220V 10
    380V 20
    Rated insulation voltage (V) 500
    Surge suppression capability 20le
    Action conditions Actuation:(85%~110%Us;Release:(20%-75%)Us
    Coil power (VA) start/hold 110/11
    Auxiliary contact control capacity AC-15 360VA;DC-3 33W
    Weight (kg) 0.64

    Contactor Schematic Diagram

    CJ19-43 has a compact structure, with the main circuit composed of a resistor switch. The main circuit is easy to connect and is widely used for controlling small capacitors. The contactor’s contact system operates on a three-phase main circuit, consisting of eight contact blocks arranged on the top and bottom. Each main circuit has one contact block that is pre-activated. There are only two switch-over resistors, and the capacitor group is configured in a delta (triangle) formation. When the resistor circuit is switched, each capacitor circuit will connect to the resistor. The contactor is equipped with two auxiliary contact blocks, which can be configured as either 2 normally open (NO), 2 normally closed (NC), or 1 NO and 1 NC, depending on the user’s preference.

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    Operating Conditions

    • Altitude: not exceed  2000 meters
    • Ambient Temperature: -25°C to +40°C
    • Humidity: 90% when temperature ≤50
    • Rated Insulation Voltage: 500V
    • Working Voltage of Control Circuit: 85% to 110% of rated voltage
    • Mechanical Life: Not less than 100,00 cycles
    • Electrical Life: Not less than 10,00 cycles
    • Auxiliary Circuit Insulation Voltage: 500V
    • Rated Current: 6A
    • Auxiliary Contact Life: 100,00 cycles
    • Control Flash Current Capability: ≤20lc
    • Voltage Ratings for Control Circuit: AC 48V, 127V, 220V, 380V

    The main function of the capacitor switching contactor

    1. Connection and Disconnection of Capacitors: Automatically or manually link or unlink capacitors as required to enhance power factor and stabilize the electrical grid.

    2. Load Regulation: Switch capacitors under varying load conditions to optimize energy consumption and minimize reactive power losses.

    3. Protection function：Provide safeguards against overloads, short circuits, and ensure the secure operation of capacitors and circuits.

    4. Automated Control:  It can be integrated with automation systems for intelligent management of capacitors, improving system operational efficiency.

    5. Enhancing Power Quality: Adjust reactive power to enhance power quality and diminish harmonic interference.

    Installation Size Drawin

    Type Amax Bmax Cmax Dmax E F Tip
    CJ19-43 90 58 136 86 40 48

    Aside from being installed using screws,the contactor can also be fitted onto a 35mm rail.

    Product wiring display


    Switching capacitor contactor part disassembly diagram

    Good accessories good products Solid materialSilver alloy contacts, compression nut, copper coil,32 pieces of iron core, flame-retardant plastic casing

     

    Six Major Details of Contactors

    32 pieces of silicon steel core thick material：A static core is generated when the coil is energizedElectromagnetic suction pulls the iron core togetherThe suction voltage is between 58%and 110%

     

    winding copper core coil:Low calorific value, Red copper coil material, bright textureGood temperature resistance and long service life

     

     

    Increase and thickenSilver alloy contact：Highly sensitive conductivity,More capable of carrying large transient current

     

    Upper and lower double hole terminaldesign：Allows for multiple connection methods, enabling users to flexibly wire according to actual needs. It can also provide a larger contact area, enhancing the stability and reliability of the electrical connection while reducing contact resistance.

     

    High quality spring：provide stable elasticity, ensuring that the contactor can close or open quickly and reliably during switching operations.

     

    32 Pieces of iron core：increases the effective area of the magnetic flux, enhances the magnetic flux density of the contactor, improves its holding capacity,reduces energy consumption, and increases energy efficiency.

     

    On-site Contactor Photography in the Factory

         

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