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    1500A DC Contactor, 12V/24V/48V

    The coil voltage of this 1500A contactor is 12V DC contactor, 24V DC contactor, 48V DC contactor, etc. This DC contactor with a large current of 1500A is made of selected thermosetting BMC material and has no burning points. Wear-resistant, non-breaking and stable in performance.
    SKU: ATO-DCCON-C1500
    30-day Returns
    Free Shipping
    Delivery date: 2-12 days

    DC contactor provides high current of 1500A. The 1500A DC contactor has 12V, 24V, 48V and high voltage dc contactor, such has 120V, 150V, 220V. The DC contactor is not only made of carefully selected BMC thermoset material, wear-resistant, damage-free and stable, but also has quality and after-sales guaranteed.


    • 1500A DC contactor has the characteristics of small size, large load capacity, long service life and simple maintenance, and is very popular among users.
    • 1500 amps contactor complies with the requirements of the ministry standards JB2286-78, JB3974-85, YD/585-92, YD/T512-92. It has been tested in the factory and by relevant testing units and meets the requirements of the ministry standards. It has been used by users for many years to satisfy users to the maximum extent. Needed, reliable quality.
    • Single coil 1500A DC contactor are suitable for electric forklifts, battery trucks, tractors, excavators, brick making machines, cleaning vehicles, automotive air conditioners, communication power supplies, switch control of electronic control circuits of uninterruptible power supplies, electroplating power supplies and other systems.


    Model ATO-SZJ1500A
    Contact Form Normally open
    Coil Rated Voltage (DC V) 12V, 24V, 36V, 48V, 60V, 72V, 84V, 120V, 150V, 220V
    Contact Rated Voltage (DC V) ≤80V
    Contact 48V Circuit Rated Load Current (DC-1) 1500A
    Main Contact Contact Voltage Drop under 100A Load ≯80mV
    Cooling pull-in voltage (V), (20±5)℃ ≯70%
    Cooling Release Operating Voltage (V), (20±5)℃ ≯40%,≮5%
    40℃ Coil Operating Voltage Range 0.8-1.2Us
    Power-on Action Time 30ms
    Power off Release Time 15ms
    Maximum Bounce Time of Contact Connection 10ms
    Maximum Bounce Time of Contact Disconnection 3ms
    Insulation Resistance 20MΩ
    Dielectric Strength 50Hz/60Hz 1000VAC 1minute
    Maximum Breaking Capacity of Main Contact (Power on for 5ms) 3000A/5ms at 48V/DC
    Coil Power Consumption (W) Start: 140-190, Hold: 9-18
    Coil Temperature Rise (K) ≤50
    Terminal Temperature Rise (K) ≤65
    Electrical Life 10000times
    Mechanical Life 200,000 times
    Work Specifications Continuous
    Contact Material Silver alloy
    Load Terminal Type 2-M12 screw
    Coil Terminal Type M4 screw
    Auxiliary Contact Rated Load (Optional) 2A/48VDC, 5A/24VDC
    Testing Agency Certification CE, FCC, RoHS

    Load Characteristic Curve

    1500A DC contactor estimated electric life

    1500A DC contactor estimated contact performance

    Installation Dimension Diagram

    1500A DC contactor installation dimension drawing

    Wiring Diagram & Coil Temperature Rise Curve Graph

    1500A DC contactor wiring diagram

    One way is normally open (SPST 1NO)
    1 and 2 are contact terminals
    A1 and A2 are coil terminals
    L1 is the take-off winding L2 is the holding winding

    1500A DC contactor coil temperature rise curve graph

    Mechanical Capabilities and Usage Environment

    Contact Terminal M8 Tightening Torque (Nm) ≯30 is appropriate
    Coil Lead-out M4 Tightening Torque (Nm) ≯1.2 is appropriate
    Ambient Temperature -25~+70℃
    Relative Humidity +20℃ 98%
    Vibration Frequency at Fixed Location 3G, 1~50Hz, amplitude 0.5mm
    Impact (60~100) times/min, acceleration ≤4g
    Altitude 2000 meters
    Installation Direction Arbitrary
    Protection Level IP40 (equivalent to IEC60947)

    Tips: DC contactor wiring method

    1. The DC contactor's coil is connected to the control circuit and is used to control the motor in the circuit part (use small to control large).
    2. The auxiliary contact represents the normally open contact of the contactor, which is opened when not powered and closed after powered on. It is used to control the self-locking of the circuit or be connected in parallel to the start button to achieve continuous operation.
    3. Both ends of the DC contactor'scoil are connected to the control circuit, the normally open contact is connected to the anode, and the normally closed contact is connected to the load.
    4. When the coil of DC contactor is activated, the normally open contact opens, the normally closed contact closes, and the load is energized; when the control circuit is deenergized, the normally open contact closes, the normally closed contact opens, and the load is deenergized.The above information is based on the general wiring method of DC contactors.
    5. Specific operations need to be appropriately adjusted according to the actual equipment model and wiring diagram.
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