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

    3 hp VFD, Single Phase 120V Input, 1ph/3ph 220V Output

    5 out of 5 based on 4 reviews | Write a review
    3 hp single phase 120v input, single phase and three phase 220v output variable frequency drive, specially designed for 120v power supply, manufacturer direct sale.
    SKU: GK3000-SP1S1-2d2
    Free Shipping Worldwide
    Delivery date: 6-12 days

    3 hp (2.2 kW) VFD, single phase input & output, single phase to three phase, 110v-120v input, 220v-240v output.


    Basics Model EM15-SP1S1-2d2
    Capacity 3 hp (2.2 kW)
    Shipping weight 3 kg
    Dimension (W x H x D) 120*205*166 mm
    I/O Feature Rated current 10 A
    Input voltage 1 phase 120V AC ±15% (Set FE-00=0)
    Input frequency 50Hz/60Hz
    Output voltage 1 phase or 3 phase 220V AC ±15%
    Output frequency 0.00~400.00Hz
    Control Feature Control mode V/F control; vector control
    Communication Offer RS485 communication interface, support MODBUS-RTU communication protocol
    Speed regulation 1:100
    Start torque 150% of rating torque at 1 Hz
    Speed control accuracy ≤±0.5% of rating synchronous speed
    Frequency precision Digital setting: max frequency x± 0.01%;
    Analog setting: max frequency x± 0.2%
    Frequency resolution Analog setting: 0.1% of max frequency;
    Digital setting: 0.01Hz
    Torque boost Automatic torque boost, manual torque boost 0.1%~30.0%
    Interior PID controller Be convenient to make closed-loop system
    Automatic energy save running Optimize V/F curve automatically based on the load to realize power save running
    Automatic voltage regulation (AVR) Can keep constant output voltage when power source voltage varies.
    Automatic current limiting Limit running current automatically to avoid frequent over-current which will cause trip
    Environment Enclosure rating IP 20
    Temperature –10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
    Humidity smaller than 95%RH, non-condensation
    Altitude ≤1000m; VFD will be derated if above 1000m
    Vibration Less than 5.9 m/s2 (0.6 g)
    Cooling forced air cooling
    Store environment –20℃~ +60℃; no dust, no corrosive gas, no direct sunlight

    Tips: Running a 3-phase motor from single phase supply

    If you want to connect a 3-phase motor to a single phase power supply, then you have several solutions:

    • Professional: use a VFD with single phase input and convert to 3-phase output, this is generally available for low power VFD (few horsepower).
    • Professional: apply a specially wound transformer that also mimic a 3-phase system from a single phase power supply. Expect difficulties to source and high price.
    • DIY: calculate a capacitor that will be connected between the remaining phases, such to apply it a phase shift and to mimic a 3-phase system.


    How to run a three phase or single phase motor with ATO VFD on 120V power supply. Take a 2 hp, single phase 120V input, single phase or three phase 220V output variable frequency drive as an example. It shows you how to wire, set parameters, commissioning VFD, run motors, etc.

    Existing reviews of 3 hp VFD, Single Phase 120V Input, 1ph/3ph 220V Output
    3hp VFD question answering
    Do we still need to debate VFDs when used on single phase input power like we did with the older VFDs or have you done something like beefing up the input diodes and caps so they will be able to output the same power as on 3 Ph?
    From: Pilgrim | Date: 05/04/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    For our 1-phase To 3-phase drive, no need to oversize, we care about that in design, just consider 10% margine above rated output current referred at each model seen at our web site.
    3hp VFD output voltage
    I am trying to drive a custom solenoid at variable frequency. Curious to know if the output voltage of GK3000-SP1S1-2d2 is variable.
    From: Pence | Date: 10/06/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    We recommend to use the drive with motors only. And yes, the output voltage is variable.
    What's wrong with my 3hp VFD?
    I got a problem with your drive, with a 3 phases motor the output voltage drop to 150 and without load it has 220. What's wrong?
    From: Glack | Date: 25/05/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The problem you mentioned is probably caused by the over load current driven by the motor is huge, and then the input voltage and bus bar voltage to be low. You can try to set F0-10=60, F0-12=60, F0-17=10, F0-18=10, then rerun the VFD and test again. When the VFD is running, you can switch the shift key >>U0-03 & U0-04, to see the voltage and current output from the VFD real-time. If the VFD cannot working properly, you may need to replace a larger capacity VFD.
    Is it safe to do so?
    So I wired my AC Variable frequency drive to my single phase 220V motor,  on first start up it ran fine for about 3 or 4 min, and then the starting capacitor got hot and started to smoke, and a small mount of the oil came out of the capacitor. I believe what happened is the switch never engaged so I stayed on the start up windings. So it will run if I give it a little help getting it to spin, but that capacitor gets really hot. The centrifugal switch will not ingage until it is at about 75% rpms. And I am trying to run the motor at much slower speeds. Is it possible to bypass the centrifugal switch and the bad capacitor possibly? Is it safe to do so?
    From: Diggy | Date: 01/03/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    This is a problem with the characteristics of the single-phase motor itself, so we do not recommend that the single-phase motor run for a long time at low frequency and low speed, otherwise the motor capacitor will heat up. Because the starting capacitor of the single-phase motor is only used to assist the motor to start. If the motor runs at low speed for a long time and the centrifugal switch is not disengaged, it will cause heat damage to the motor. If you want the motor to run at low frequency and low speed, we suggest you use a three-phase motor, or you can try to change the internal winding circuit of your single-phase motor to three-phase wiring and remove the capacitor.
    Write your review for 3 hp VFD, Single Phase 120V Input, 1ph/3ph 220V Output
    • Only registered users can write reviews
    • Bad
    • Excellent
    Customers who bought this item also bought

    3 hp VFD, Single Phase to Three Phase VFD

    SKU: GK3000-2S0022
    Low price 3hp VFD, convert 220V/230V/240V 1 phase to 3 phase, 10amps, RS485 enabled, shipping weight 3kg, manufacturer direct sale.

    1000 Watt 12V/24V Pure Sine Wave Inverter Charger

    SKU: ATO-PI-LW1000
    Efficient 1000 Watt continuous power inverter / charger generates pure sine wave power from 12V DC or 24V DC battery bank, peak power up to 3000W. Affordable-price low frequency inverter with charger has selectable AC output voltages of 110V/120V or 220V/230V/240V, and 120V/240V split phase output also available, with protections against overload, over-temperature, low battery and overcharge, real-time LCD display, compact design and easy to install, ideal for powering most household appliances.

    5 hp VFD, Single Phase to Three Phase VFD

    SKU: GK3000-2S0037
    5hp variable frequency drive, single phase to three phase VFD, 19.2 amps, RS485 enabled, shipping weight 4kg, manufacturer direct sale.

    100W Portable Rechargeable LED Solar Work Light

    SKU: ATO-WSL-100W
    Portable rechargeable flood LED solar lights for outdoor and indoor, 100W, cheap price, tripod can select single head tripod or twin head tripod, energy-efficient portable flood solar lights to provide you with more stable light sources.

    AC/DC Mini Clamp Meter with NCV/TRMS/Temperature/Capacitance

    $106.39 $118.21
    SKU: ATO-CLAM-220D
    The mini digital clamp meter is a AC/DC clamp multimeter with TRMS/NCV/temperature/capacitance functions. It can be used to measuring AC/DC current 0-100A, AC/DC voltage 0-600V, resistance 0-20MΩ, frequency 0-100kHz, capacitance 0-100mF and temperature -50℃~+1000℃ (-58℉~1832℉). The maximum jaw opening size is 22mm.