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    150A High Voltage DC Contactor, 12V/24V coil

    5 out of 5 based on 2 reviews | Write a review
    High voltage contactor, 150A rated load current of contact circuit, operating voltage up to 900V, normally open type (SPST-NO), is specially design to meet the requirements of high voltage DC switching applications.
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    Delivery date: 6-12 days


    • DC 12-900V rated load voltage of contact circuit.
    • Normally open type (SPST-NO) of contact form, 12 volt, 24 volt coil for selecting.
    • Main contact voltage drop at 150A, not above 100mV.
    • The connection of contact and coil need to be nonpolarity.
    • Efficient coil, retentive power is only 2-2.3W, counter electromotive force is 0V.
    • The joint way of the coil is very convenient.
    • The coil has no counter force of electromagnetism.
    • Compare to the similar products, this product is smallest and lightest.


    Basics Model ATO-ADH150
    Dimension 80 x 65 x 67 mm
    Weight 440 g
    Main Contact Parameters Contact Form 1 NO
    Leading-Out M6 Internal thread
    Rated Load Current 150 A
    Rated Load Voltage 12 – 900V DC
    Maximum Switching Current 1500A 320V DC (≥1 times)
    Maximum Switching Power 480 kW
    Coil Parameters Standard Type Voltage 12/24V DC
    Work Voltage 8~36V
    Max Voltage 36 V
    Coil Resistance 3.1Ω
    Average Holding Current 0.14 A
    Steady State Power 1.7~2 W
    Actuation Time ≤30 ms
    Release Time ≤10 ms
    Bounce Time ≤5 ms
    Mechanical Specification Stability 196 m/s2 (20G)
    Strength 490 m/s2 (50G)
    Vibration 80 ~2000Hz 98m/s2 (20G)
    IP Grade IP67
    Environment Operating Temperature -40℃~85℃
    Operating Humidity 5~95% RH

    Installation Diagram (Unit: mm)
    high voltage 150a dc contactor dimension 1
    high voltage 150a dc contactor dimension 2High Voltage DC Contactor Coil Schematic
    high voltage dc contactor coil schematic


    150A High Voltage DC Contactor Details

    Tips: Magnetic blowing device working principle of a DC concactor

    When the contactor’s movable and static contacts disconnect, arc will generate between the contacts, the arc still maintains the load current within a short period of time. At this moment, two magnetic fields will generate before the arc extinguishes. One magnetic field is formed by the current around the arc, of which the direction can be determined by the Ampere's rule. Moreover, there’s still another magnetic field around the arc, which is produced between two magnetic splints by the current when it flows the blowout coils. This magnetic field passes the iron core and goes through one magnetic splint, it enters another magnetic splint through the gap and forms a closed magnetic circuit.
    Obviously, above the arc, the magnetic field between two magnetic splints has an opposite direction with that of the magnetic field around the arc, the magnetic field intensity is also weaker. Below the arc, the two the magnetic fields have same direction and the field intensity strengthens. Therefore, the arc will be pulled from the strong side of the magnetic field to the weak side, it moves upwards. In this process, the arc will be quickly elongated and form a relative motion with the air, thus reducing the arc temperature. Meanwhile, when the arc is blown to the upper part of arc chute, the heat of the arc will be transferred to the arc chute, thus further reducing the arc temperature, promoting the rapid extinction of the arc.

    Existing reviews of 150A High Voltage DC Contactor, 12V/24V coil
    Does the option ATO-ADH150 attend max coil current of 2A?
    We are looking to find alternative parts for a replacement of our 150amp contactor. Does the option ATO-ADH150 attend max coil current of 2 amp?
    From: Abner | Date: 27/05/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, this contactor ATO-ADH150 has a maximum coil current of 2A at the moment of startup.
    Do you provide 150A high voltage DC contactor with N/C auxiliary?
    Do you provide high voltage DC contactor 120v of model: ATO-DCCON-HV150 with N/C auxiliary? If yes, what is the price includes Shipping To Netherlands?
    From: Ray Brett | Date: 16/07/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Unfortunately don't provide NC auxiliary for 120VDC, but can provide for up to 80VDC operating voltage (low voltage DC conatctor).
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