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    185 amp 3 phase AC Magnetic Contactor, 24V/110V/220V Coil

    Low price 3 phase 3 pole AC magnetic contactor is used in electric motor control and DIN rail or panel mounting, with 110V/220V/380V coils. Different contact form are available, intended for frequently switching on and off 3 phase loads up to 185 amps.
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    Delivery date: 6-12 days

    ATO 3 pole AC magnetic contactor is used in 3 phase units. This contactor relay works between power source and high load electrical motor to balance changes in electrical frequency which may come from a power supply.


    Model ATO-CJX2-F185
    Rated Current le max AC-3 (Ue≤440V) 185A
    le max AC-1 (θ≤40°C) 275A
    Coil Rated Voltage (Optional) 110V AC, 220V AC, 380V AC
    Contact Form 3NO
    Auxiliary Contact (Optional) 2NO, 2NC, 1NO+1NC, 2NO+2NC, 1NC+3NO, 4NO, 4NC
    Frequency 50Hz/ 60Hz
    Rated Insulated Voltage (Ui) 1000V
    Rated Impulse Withstand Voltage (Uimp) 8kV
    Rated Operational Voltage 440V
    Conventional Thermal Current (θ≤40°C) 275A
    Operation Frequency AC-1, AC-2, AC-3 1200 times/h
    AC-4 300A
    Rated Power (AC-3) 220/240V 55kW
    380/400V 90kW
    415V 100kW
    440V 100kW
    500V 110kW
    660/690V 110kW
    1000V 100kW
    Connection/ Wiring Number of Lines 2
    Line Size 25x3mm2
    Cable with Splicing 150mm2
    Cable with Connector 150mm2
    Screw Diameter φ8
    Tightening Torque 18N.m
    Standards-Compliant IEC60947-4-1, GB14048.4, EN60947-4-1
    Dimensions 174 x 168.5 x 181mm
    Weight 9.5kg


    185 amp 3 phase AC Magnetic Contactor Details

    Tips: Reasons for poor contact of the AC magnetic contactor

    Poor contact of the AC contactor will increase the contact resistance between the moving and static contacts, resulting in excessively high temperature of the contact surface, and causing the surface contact to become a point contact, or even non-conduction. The reasons for this failure are:  

    • There are oil stains, flower hairs, and foreign objects on the contacts.   
    • Because of long-term use, the surface of the contact is oxidized.   
    • Defects, burrs or metal swarf particles caused by arc ablation.
    • There is jamming in the moving part.
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