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interlocking contactor
contactor

China CJX2-N Interlocking Contactor - Reliable Suppliers and Factory for AC Motors Control up to 954A

The CX2-N series interlocking contactor is a high-performance solution designed for use in AC circuits operating at frequencies of 50Hz or 60Hz. With a rated insulation voltage of up to 690V and a rated working current of up to 954A at 380V, this contactor is ideal for controlling motors that operate reversibly or for dual power supply control. By integrating with suitable thermal relays, it forms an effective electromagnetic starter, providing essential overload protection for electrical circuits. This product adheres to rigorous standards, including GB14048.4 and IEC60947-4-As a leading supplier and factory based in China, we ensure the highest quality and reliability in our electrical components, meeting the needs of diverse industrial applications
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    Product Detail

    Type and meaning
    CJX2-N series interlocking contactor
    Normal working conditions and installation conditions
    The altitude of the installation site should not exceed 2000m;
    The ambient air temperature should not be higher than+40℃ and not be lower than-5℃.
    When the highest temperature is +40℃, the relative humidity of the air on the installation site should not be higher than 50%;A higher relative humidity is lowed at a lower temperature:In the wettest month.the monthly average minimum temperature should not exceed +20℃ and the average maximum relative humidity should not exceed 90%. Measures should betaken for condensation on the product due to temperature change.
    The inclination between the installation surface and the vertical plane should not exceed ±22. 5~.
    Pollution level:level 3;
    The product should be installed in a place without obvious shaking, impact and vibration.
    Structural features of the product
    The action mechanism is of direct acting type, and the contact is of double breakpoints.
    With the combination function, all surfaces except for the installation surface may be additionally provided with accessories.
    Auxiliary contact sets maybe additionally installed on both sides.
    Auxiliary contact sets or air damping, type time relays may be additionally installed on the upper side.
    The coil terminal may be additionally provided with various functional modules such as time delay units.
    Both mechanical and electrical interlocking can be achieved.
    Main parameters and technical performance
    Type CJX2- 09N CJX2- 12N CJX2- 18N NCJX 2- 25N CJX2- 32N CJX2- 40N CJX2- 50N CJX2- 65N CJX2- 80N CJX2- 95N
    Rated working current A 380V 9 12 18 25 32 40 50 65 80 95
    660V 20 8.9 12 18 21 34 39 42 49 55
    Conventional thermal current It hA 20 20 32 40 50 60 80 80 125 125
    Rated working voltage U eV 380
    Rated insulation voltage U iV 690
    AC-3 Electrical endurance 10*times 100 100 100 100 80 80 80 80 60 60
    Operating frequency times/h 1200 1200 1200 1200 600 600 600 600 600 600
    AC-4 Electrical endurance 10*times 20 20 20 20 20 15 15 15 10 10
    Operating frequency times/h 300 300 300 300 300 300 300 300 300 300
    Rated working current leA 380V 3.5 5 7.7 8.5 12 18.5 24 28 37 44
    660V 1.5 2 2.8 4.4 7.5 9 12 14 17.3 21.3
    Auxiliary contact Electrical endurance AC-151360VA The same as the electrical endurance of the main contact(AC-3)
    DC-13(33W)
    Minimum load for connection 6V10mA
    Coil Rated control voltage UsV 24、48、110、220、380
    Pull-in voltage (0.85~1.10)Us
    Release voltage (0.20~0.75)Us
    Coil power Pull-in 70 70 70 110 110 200 200 200 200 200
    Holding 8 8 8 11 11 20 20 20 20 20
    Outline and installation dimensions
    CJX2-N series interlocking contactor 02
    Note: C1: CJX2-N+F4 | C2: CJX2+SK2-2/3
    Interlocking contactor type A max B max C max D max C1 C2 a b
    CJX2-09N, 12N 112 76 87 86 115 134 96 50
    CJX2-18N 112 76 92 86 120 139 96
    CJX2-25N 134 86 102 98 130 149 112 60
    CJX2-32N 134 86 120 100 135 154 112
    CJX2-N series interlocking contactor 03
    Note: C1: CJX2-N+F4 | C2: CJX2+SK2-2/3
    Interlocking contactor type A max B max C max D max C1 C2 a ai b
    CJX2-10N, 50N, 65N 176 128 145 138 149 168 49 90±0.70 100 / 110
    CJX2-80N, 95N 190 128 162 146 160 179 56 90±0.70 100 / 110
    Tightening torque for verifying mechanical strength of connection terminal of AC contactor
    Basic specification Thread diameter mm Tightening torque N
    9~12 3.5 0.8
    16-25 4 1.2
    21-50 6 2.5
    63~125 6 3.0
    160~250 315~500 8 / 10 6.0 / 10.0
    630~1000 12 14.0
    Frequently Asked Questions (FAQ)
    What is the maximum installation altitude for the CJX2-N series contactor?
    The altitude of the installation site should not exceed 2000 meters.
    What are the ambient temperature limits for normal working conditions?
    The ambient air temperature should not be higher than +40℃ and must not be lower than -5℃.
    Can this contactor achieve both mechanical and electrical interlocking?
    Yes, both mechanical and electrical interlocking can be successfully achieved with the CJX2-N series.
    What is the rated insulation voltage (Ui) for these contactors?
    The rated insulation voltage (Ui) is 690V.
    What is the required tightening torque for a basic specification of 9~12?
    For a basic specification of 9~12, the thread diameter is 3.5mm and the tightening torque is 0.8 N.

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