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    1000A DC Contactor, 12V/24V/48V

    This 1000A DC contactor has a metal outer surface and adopts environmentally friendly electroplating, which is not only environmentally friendly but also anti-oxidation. The DC contactor with a large current of 1000A can provide 12V, 24V, 48V and other high voltage dc contactor options.
    SKU: ATO-DCCON-C1000
    30-day Returns
    Free Shipping
    Delivery date: 2-12 days

    1000A high-current DC contactor adopts a metal shell and adopts environmentally friendly plating. The 1000A DC contactor is not only environmentally friendly but also anti-oxidation. This high voltage contactor also can provide a variety of voltage options such as 120V, 150V, 220V.


    • 1000A DC contactor has the characteristics of small size, large load capacity, long service life and simple maintenance, and is very popular among users.
    • 1000 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 1000A 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-SZJ1000A
    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) 1000A
    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 10000 times
    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

    1000A DC contactor estimated electric life

    1000A DC contactor estimated contact performance

    Installation Dimension Diagram

    1000A DC contactor installation dimension drawing

    Wiring Diagram & Coil Temperature Rise Curve Graph

    800A 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

    800A 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: How to choose DC contactor?

    1. Current and voltage levels: The current and voltage levels of the DC contactor should meet the requirements of the circuit and cannot exceed the rating of the circuit value.
    2. Connection method: The connection method of the DC contactor should match the form of the circuit, so as to ensure the normal operation of the circuit.
    3. Mechanical strength: The mechanical strength of the DC contactor should be sufficient, not only able to withstand normal load, but also able to withstand short-circuit current and other abnormal situations.
    4. Operating characteristics: The operating characteristics of the DC contactor should match the circuit requirements, such as switching speed, contact recovery time and contact resistance.
    5. Reliability and life: The DC contactor should have stable performance and long life, so as to ensure the normal operation and use of the circuit service life.
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