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CJ20t-40.png
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CJ20t Normalizing Special Series AC Contactor

CJ20t series  AC contactor is mainly used in the electric power circuits with the frequency of AC 50Hz (or 60Hz), the rated working voltage of up to 690V (or 1140V)and the rated working current of up to 1000A for connecting and breaking circuits, and working with the appropriate thermal relay or electronic protection device to form the motor starter to protect the circuits that may be overloaded.Executive standards:GB14048.4 and1EC60947-4-1.etc.

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    Advantage

    All products of the company can be customized for production according to user usage scenarios.

    Type and meaning

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    Normal working conditions and installation conditions

    □The ambient air temperature should be -5℃-+40℃, with the average temperature of no higher than +35℃ within 24 hours
    □Altitude: not higher than 2000m;
    □Atmospheric conditions: when the highest temperature is +40℃, the relative humidity of the air should not be higher than 50%; A higher relative humidity is allowed at a lower temperature, such as 90% under 20℃, Special measures should be taken for occasional condensation due to temperature change;
    □Pollution level: level 3;
    □Installation category: category II;
    □Installation condition: the inclination between the installation surface and the vertical plane should not exceed ±5°.
    □Impact vibration: the product should be installed and used in a place without obvious shaking, impact and vibration.

    Structural features

    The contact system of the contactor is direct-acting with double breakpoints.For CJ20t-40A and above,the auxiliary contacts are installed on both sides of the main contact as independent components,which are electrically separated;
    CJ20t-10-25A products maybe installed by screws or by 35mm standard card track;
    CJ20t-10-16A products have double breakpoints to simply break the arc extinguishing chamber,and the rest adopt the plastic grid arc extinguishing chamber,which has the advantages of  high breaking capacity and high reliability; 
    CJ20t-63~630 power saving products have the DC general power saving module,which not only can derive silencing energy saving products or DC operated products,but also do not occupy auxiliary contacts,thus greatly improving the reliability and life of products.

    Outline and installation dimensions

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    Type

    A

    B

    C

    a

    b

    φ

     

    mn

    kg

    CJ20t-40

    86.5

    111.5

    118

    70±0.37

    80±0.37

    5±0.3

    15±0.19

    30

    0.96

    CJ20t-63

    116

    142

    146

    100±0.4

    90±0.4

    5.8±0.3

    10±0.29

    60

    2.9

    CJ20t-100

    120±1.75

    145±2

    150±3.15

    108±0.435

    92±0.435

    7±0.58

    15±0.38

    70

    3

    CJ20t-160

    146

    187

    178

    130±0.5

    130±0.5

    9±0.58

    15.5±0.35

    80

    5.5

    CJ20t-250

    190

    235

    230

    160±0.5

    150±0.5

    9±0.58

    17±0.35

    100

    10.5

    CJ20t-400

    190

    235

    230

    160±0.5

    150±0.5

    9±0.58

    17±0.35

    100

    10

    CJ20t-630

    245

    294

    272

    210±0.575

    180±0.5

    11±0.7

    11±0.7

    120

    21.5

    CJ20t-800-1000

    245

    294

    287

    210±0.575

    180±0.5

    11±0.7

    11±0.7

    120

    21.5

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