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    Automatic Transfer Switch, 3/4 Pole, 6 to 63 Amps

    4.6 out of 5 based on 3 reviews | Write a review
    Low price dual-power automatic transfer switch with high-breaking mini circuit breaker, selectable 3-pole or 4-pole, is available for rated operating current 6A, 10A, 16A, 20A, 25A, 32A, 40A, 63A, ATS has three positions switching of normal power ON, dual OFF, standby power ON. Simple structure, easy operation and long service life.
    SKU: ATO-ATS-063
    Free Shipping Worldwide
    Delivery date: 6-12 days


    • Suitable for 3-phase power system with rated operating voltage 400V AC 50Hz, ratings from 6 to 63 amps
    • With the function of normal power ON, dual OFF, standby power ON
    • Simple structure, practical, easy operation, no noise, small impact, and long service life
    • Wide applications, suitable for the illuminating circuits of commercial buildings, shopping mall, banks, and high-rise buildings where the fire protection are needed.

    ATS Structure & Working Principle

    • Structure
      The automatic transfer switch consists of two miniature circuit breakers, motor, controller, and driving mechanism. The miniature circuit breaker with high-breaking capacity is used, and ATS has the same performances as MCB.
    • Working Principle
      The controller of ATS will detect two loops of power supply. When one loop has fault, the ATS controller will give a logic decision and send a command of closing and opening the related miniature circuit, to ensure the safe and reliable power supply.


    Model ATO-ZMQ2E
    Use Category AC-33iB
    Rated Operational Voltage Ue 380V AC
    Rated Operational Frequency 50/60Hz
    Rated Operational Current Ie (Optional) 6A, 10A, 16A, 20A, 25A, 32A, 40A, 63A
    Switching Control Voltage 220V AC
    Rated Insulation Voltage Ui 690V AC
    Transfer Action Time <3s
    Service Life  Electrical 1,500 Times
    Mechanical 6,000 Times
    Rated Short-circuit Making Capacity Icm 7.5kA
    Rated Ultimate Breaking Capacity Icu 5kA
    Number of Poles (Optional) 3-Pole or 4-Pole
    ATS Controller Model

    Type Terminal type
    Installation Method Integrated
    Operation Method Auto & Manual
    Monitoring Function Phase failure detection
    Conversion Method Auto switch and auto reset
    Firefighting Linkage Control N/A
    Display Functions Signal lamp indicator
    Environment Altitude < 2000m for the installation site
    Ambient Temperature -5℃-+40℃, the average less than +35℃ for 24 hours
    Relative Humidity RH≤ 50% at the maximum ambient temperature of +40℃;
    Higher relative humidity is allowable under lower temperature, for example, RH could be 90% at +20℃.
    (Please note that the measures shall be taken for the condensation occasionally with the temperature change.)
    Standards Compliance to GB/T140848.11
    Pollution Degree Class 3
    Mounting Conditions It shall be mounted on the place where has no impact and vibration, no snow and rain.
    The upper terminals are connected to power source, and downside terminals are connected to the load.
    The sloping angle against the vertical shall be less than 5°.
    The outer magnetic field around the mounting site shall not exceed 5 times of earth field.
    Weight  12.3kg
    Dimensions  See below

    Automatic Transfer Switch Dimensions
    ATS Dimensions 6 - 63 amps

    Type External Dimensions (mm) Mounting Dimensions (mm)
    L W H L1 W1 Φd
    3-pole ATS 185 132 120 165 120 4
    4-pole ATS 220 132 120 200 120 4

    Tips: What's dual power automatic transfer switch?

    The automatic transfer switch (ATS) is a switch to transfer between two power sources. It is constituted by one or several change-over switching equipment and other necessary apparatuses. It is used to detect the power circuit. In addition, it changes over one or several load circuits from one power supply to the other power supply.

    For the use of dual power automatic transfer switch, briefly, it is connected with one utility power and one backup power. When the utility power suddenly fails, it will be transfer to the backup power supply automatically through the ATS (at the small load, the backup power supply can be supplied by the generator) to enable the equipment to operate normally. The most common application is the elevator, fire protection and monitoring. The condition is the same to the UPS uninterruptible power supply of the bank. However, its backup is the battery set. It is used in some factories and mines or units with loads of class I category and class II category.

    1. ATS with 3-pole circuit breaker
    3-pole ATS wiring diagram

    2. ATS with 4-pole circuit breaker
    4-pole ATS wiring diagram

    3. Terminal-type ATS output ends wiring diagram
    Terminal-type ATS output terminals wiring diagram

    Existing reviews of Automatic Transfer Switch, 3/4 Pole, 6 to 63 Amps
    Works as described.
    I bought this 63 amp ATS for switching between the solar and main power at my house. First I tested this ATS for several times before installation. Works as described.
    From: Jacob | Date: 12/06/2018
    Was this review helpful? Yes No (0/0)
    Good auto transfer switch
    The ATS is good. Just I had a little problem with installation, but it was solved with the help of customer service. Thanks.
    From: Walid | Date: 20/06/2018
    Was this review helpful? Yes No (0/0)
    This switch works as advertised.
    This auto transfer switch is easy to install and operate according to the instruction, but it is a little expansive. Nevertheless, this switch works as advertised.
    From: James Martinez | Date: 19/07/2018
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Dear Martinez, thanks a lot for your ordering on This ATS switch has its significant advantage, able to operated manually or automatically with monitoring function.  So, believe your choice and its high performance is worth this price. :) Of course, to get a discout, here are some methods for your reference:
    Write your review for Automatic Transfer Switch, 3/4 Pole, 6 to 63 Amps
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