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    300A DC Reversing Contactor, 2 pole, 12V/24V/48V

    2 pole DC reversing contactor with 2NO and 2NC contact form, 300 amps rated load current of contact circuit, coil rated voltage with 12V/24V/48V DC for selection. This DC reversing contactor is used to control the direction of current flow in a direct current circuit, allowing for the reversal of the motor or other load.
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    300A DC reversing contactor is an electromechanical device typically used in applications where the direction of a DC motor needs to be changed, such as in electric vehicles, conveyor systems, or other machinery that requires forward and reverse operation.


    Model ADC300-I
    Coil Rated Voltage (Optional) 12V/24V/48V
    Rated Current 12A
    Contact Form (Optional) 2NO, 2NC
    Pole 2 Pole
    Contact Resistance ≤30mΩ
    Contact Voltage Drop ≤80mV (at 80A)
    Insulation Resistance ≥50mΩ
    Overload Current ≤4le, >1s
    Pull-in Voltage ≤70%Us
    Release Voltage 5%-40%Us
    Load Terminal Type M6 External Thread
    Working Style short term
    Load Endurance (Resistive) α ≥20000次
    Load Wiring Torque 3-6N.m
    Coil Wiring Torque 0.5-0.8N.m
    Vibration 3.5g, 10~200Hz, 1/2 Sine Wave (Energized)
    Temperature -40℃~85℃
    Humidity 5%~95%RH
    Contact Bounce Time ≤5ms
    Pick-up Time ≤30ms
    Release Time ≤30ms
    Medium Pressure Resistance Between Main Contact 50Hz/60Hz, 1500VAC/1min
    Between Main Contact and Coil 50Hz/60Hz, 1500VAC/1min
    Insulation Resistance Initial State 100mΩ, 1min
    After Electrical Life 50mΩ, 1min
    Impact Stability 20g (power on)
    Strength 50g
    Mechanical Durability ≥1000000次
    Dimension 86mm*5Imm*78mm

    Coil Parameter

    Coil Voltage Pull-in Voltage Release Voltage Coil Resistance Coil Power Consumption
    12V ≤70%Us 5%-40%Us 6Ω±10% 24W±10%
    24V ≤70%Us 5%-40%Us 24Ω±10% 24W±10%
    36V ≤70%Us 5%-40%Us 54Ω±10% 24W±10%
    48V ≤70%Us 5%-40%Us 96Ω±10% 24W±10%
    60V ≤70%Us 5%-40%Us 150Ω±10% 24W±10%
    72V ≤70%Us 5%-40%Us 216Ω±10% 24W±10%

    Dimension (Unit: mm)

    300A DC reversing contactor dimension

    Wiring Diagram

    300A DC reversing contactor wiring diagram


    DC reversing contactor applications

    Tips: What are the control methods of DC reversing contactor?

    The control methods of DC commutation contactors mainly include the following. These control methods make DC commutation contactors flexible and adaptable in various application scenarios.

    • Manual control: Direct operation of the contactor via a mechanical switch or push button. This method is suitable for simple situations and is intuitive to operate, but it is not suitable for complex or automated needs.
    • Electrical control: Use an electromagnetic coil to control the on and off of the contactor, activate the coil through a low voltage signal, and change the state of the contactor. This method is commonly used in remote or automated control systems.
    • PLC control: Control signals are sent through a programmable logic controller (PLC) to achieve precise control of the contactor. It is suitable for complex automation systems and provides programming flexibility and high integration.
    • Wireless control: Use wireless communication technology (such as Wi-Fi, Bluetooth) to achieve remote control, suitable for situations where long distances are required or wiring is difficult.
    • Intelligent control: Combined with sensors and control algorithms, it automatically adjusts the contactor status to improve system response speed and efficiency. It is often used in intelligent industrial applications.
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