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    50 amp 3/4 Pole DC Coil Contactor, 12V/24V/48V/220V Coil

    4.5 out of 5 based on 2 reviews | Write a review
    50A 3 or 4 pole AC contactor is an electrical switching device with DC control to control electric motors, lighting and other electrical loads at 12V, 24V, 36V, 48V, 110V, 220V coil rated voltage. Rated power up to 37 kW, contact form 3 NO or 2NO+2NC for your choices.
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    Delivery date: 6-12 days

    DC contactor works to connect and break of the circuit load, which can fully meet the special demand of electric locomotive, diesel locomotive and electric motor car group. It is widely used in the control system of DC electric control, storage battery circuit and capacitance circuit.


    Model ATO-CJX2-50Z ATO-CJX2-50008Z
    Rated Current 50A AC
    Coil Rated Voltage (Optional) 12V DC, 24V DC, 36V DC, 48V DC, 110V DC, 220V DC
    Contact Form (Optional) 3 Pole (3NO)+1NO+1NC 4 Pole (2NO+2NC)
    Frequency 50Hz/ 60Hz AC
    Rated Power (AC-3) 200-240V 15kW (20HP)
    380-440V 22kW (30HP)
    500-550V 37kW (50HP)
    600-690V 37kW (50HP)
    Conventional Thermal Current 80A
    Operating Temperature -40℃~85℃
    Operating Humidity 5~95% RH
    Dimensions 77 x 129 x 172mm 84 x 129 x 184mm
    Weight 2.5kg

    Circuits Diagram

    50 amp DC Contactor Circuit Diagram


    50 Amp DC Contactor Details

    Tips: The composition of DC contactor

    The DC contactor is composed of electromagnetic mechanism, contact system and arc extinguishing device. For example, the electromagnetic mechanism is composed of an iron core, a pull-in coil, and an armature, and mostly adopts a clap-type structure that rotates around the corners. Since the current passing through the pull-in coil is DC, under normal circumstances, the energization in the coil will not generate eddy current on the iron core, so that the iron core does not generate heat, so it has no iron loss, so the iron core can be made of integral cast iron or cast steel. The number of turns of the coil winding of the DC low-voltage contactor is larger than that of the AC contactor coil, so the resistance value of the DC contactor coil is relatively large.

    Existing reviews of 50 amp 3/4 Pole DC Coil Contactor, 12V/24V/48V/220V Coil
    Questions about contactor
    We have a contactor from you guys which states is a DC contactor however it also states its an AC contactor with no further details.
    From: Alston | Date: 01/08/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Unfortunately, we do not provide DC current rating of the contactor.
    Seems Well Made for the Cost
    I combined this with a WiFi Smart Relay to make a heavy duty smart control for my water heater. I spend a lot of time working on the road for weeks at a time and now I can turn the water heater back on a couple of hours from home to take a shower when I get home. So far it is operating quite well and I haven't had any issues.
    From: Tomas | Date: 23/08/2022
    Was this review helpful? Yes No (1/0)
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