(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories

    Automatic Transfer Switch, 3/4 Pole, 10/20 to 100 Amps

    5 out of 5 based on 3 reviews | Write a review
    Intelligent automatic transfer switch (ATS), has rated current ranging from 10 amp to 100 amp (optional 10A, 16A, 20A, 32A, 40A, 50A, 63A, 80A, 100A), 3-pole or 4-pole, rated working voltage 400VAC 50Hz and adjustable 0-30s delay time. This intelligent ATS transfer switch features compact size and light weight, easy mounting & wiring, simple operation with microcomputer controller, best automatic and manual switching between normal power and standby power.
    SKU: ATO-ATS-100
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days


    • Suitable for 400V AC 50Hz power supply system with rated working current 10A, 16A, 20A, 32A, 40A, 50A, 63A, 80A, 100A.
    • This ATS is an intelligent self-protection transfer switch mainly including two parts - microcomputer controller and transfer switch.
    • With automatic and manual operation, machinery and electrical double interlock feature.
    • ATS has three switching position for options: common power ON, dual power OFF, standby power ON.
    • Small size, light weight, stable performance, reliable operation and easy to use.
    • Applied for residential areas, military facilities, hospitals, shopping malls, airports and so on.


    Model ATO-ZMQ2F/L-100
    Frame Current 100A
    Rated Operating Current (Optional) 10A, 16A, 20A, 32A, 40A, 50A, 63A, 80A, 100A
    Number of Poles (Optional) 3-pole 4-pole
    Breaking Current 22kA 35kA
    Rated Operating Voltage 400V AC
    Insulation Voltage 2500V one minute, no flicker and no breakdown for one minute
    Frequency 50/60Hz
    Delay Time 0-30s (Adjustable)
    Controller Rated Working Voltage 230V AC
    Mechanical Life 5,000 times
    Structure Type (Optional) Integral type (F) or split type (L)
    Environment Altitude ≤2000m
    Ambient Temperature -5℃~+40℃, the 24-hour average temperature does not exceed +35℃
    Relative Humidity RH≤50% @ +40℃; at a lower temperature, it is allowable to have a higher humidity.
    Please pay more attention to the condensation produced on the product surface with the change of humidity.
    Installation No explosive medium, and no medium of gas and dust is enough to corrode and damage the insulation.
    No significant shock and vibration.
    Standards Compliance to IEC6094-6-1, GB14048.11-2008
    Protection Class IP30
    Weight 7.2kg 8.8kg
    Dimensions (mm) See below


    100 Amps Automatic Transfer Switch Details

    ATS Dimensions (Unit: mm)

    100 Amp Automatic Transfer Switch Dimensions

    Type W W1 L L1 H
    ZMQ2F/L-100/3P 390 350 210 190 120
    ZMQ2F/L-100/4P 495 460 210 190 135

    Wiring Diagram
     3 Pole or 4 Pole 100A Automatic Transfer Switch Wiring Diagram
    * The above wiring diagram is just for your reference. With the different types and functions, the wiring is also different.
    * When the fire takes place, EPS signal is on (provided by firefighting center) and the circuit breakers Q1 & Q2 is released or cut off.
    * Q1 & Q2 refer to circuit breakers.
    * KG refers to the wiring terminals.
    * The R & N power ON indicator lamps are external (provided by the user).
    * The dashed part is provides by the user.

    ATS Transfer Switch Wiring

    * 3P refers to 3-pole circuit breaker and 4P means 4-pole circuit breaker.
    * 24VDC (external) is supplied by the fire control center.

    Tips: How does an automatic transfer switch work?

    ATS automatic changeover switch is mainly used for the emergent power supply system. It is the switching device changing the load circuit from one power source to another (backup) automatically, so as to guarantee the continuous and reliable operation of the important load.

    At the working status, the controller of ATS will conduct continuous data sampling to various voltages of the two power sources and calculate the voltage effective values automatically. According to the set data, the microprocessor carries out various judgments. The result will send out separating or closing instruction to the operating mechanism through the prolonged (adjustable) drive circuit, so as to realize the switching on the normal power or backup power, or the changeover to the dual sources off. In addition, the fault condition can be reflected by the LED digital tube and indicating light.

    Existing reviews of Automatic Transfer Switch, 3/4 Pole, 10/20 to 100 Amps
    Good price for the ATC!
    This 4P ATC is great and works smoothly. I used this unit to power my RV outlets by my inverter. I connected the Utility line to the RV “Outlets” 15amp breaker. I am completely happy with this automatic transfer switch.
    From: hzt | Date: 24/05/2022
    Was this review helpful? Yes No (0/0)
    What is the conversion time of the automatic transfer switch?
    For your automatic transfer switch, what is the switching time? And can it be controlled remotely?
    From: Doris | Date: 10/01/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Our dual power switch switching time is 3 sec, and yes, out ATS can receive fire command (24VDC), to remotely control main power and backup power.
    Do you have automatic transfer switch of 4 poles with an overlap of the neutral ?
    Do you have automatic transfer switch of 4 poles with an overlap of the neutral ?
    From: Fatih | Date: 17/11/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    We provide 4-pole or 3-pole ATS, but do Not provide with an overlap of the neutral.
    Load more reviews...
    Write your review for Automatic Transfer Switch, 3/4 Pole, 10/20 to 100 Amps
    • Only registered users can write reviews
    • Bad
    • Excellent
    Customers who bought this item also bought

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

    $188.92 $267.86
    SKU: ATO-ATS-063
    Low price and compact size dual power automatic transfer switch (ATS) with high-breaking mini circuit breaker, selectable rated operating current 6A, 10A, 16A, 20A, 25A, 32A, 40A, 63A, works at 400VAC 50Hz/ 60Hz power supply system, 3-pole or 4-pole ATS changeover switch, reliable automatic and manual operation, simple structure, easy operation and long service life.