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

    5 out of 5 based on 7 reviews | Write a review
    Affordable 2 hp variable frequency drive, single phase 110v-120v input, single phase and three phase 220v-240v output, designed for driving single/three phase AC motor via 120v power supply.
    SKU: GK3000-SP1S1-1d5
    30-day Returns
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    Delivery date: 2-3 days

    2 hp (1.5 kW) VFD, single phase 110v/120v input to single phase 220v, 230v, 240v output, single phase to three phase, 7 amps.


    Basics Model EM15-SP1S1-1d5
    Capacity 2 hp (1.5 kW)
    Shipping weight 3 kg
    Dimension (W x H x D) 120*205*166 mm
    I/O Feature Rated current 7 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 0~320Hz (SFC)
    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: Variable Frequency Drive vs Soft Starter

    If you need to vary the speed of the driven load, then a VFD is definitely the choice. If you are looking to reduce the starting current and the starting torque of an induction motor, then a soft starter can be selected.
    If energy savings (reduced speed) is the issue a VFD will almost always be the first choice, but again the driven load, (VT) and application require review and sizing considerations. If speed control is the consideration then a constant torque load will require a VFD. The motor basics we have had to live with, NEMA design A, B, C & D are there for a reason as one design doesn't fit all applications. The controller is just another tool to use within it's limitations to provide the desired result for an application.
    Soft starter - considerably cheaper than VFDs, much more efficient, does not require harmonic mitigation, but draws 3 - 4 times start current and does not offer variable speed feature. Understanding the application and exactly what you are trying to achieve would be the most important factor.


    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.

    A three-phase motor can be regulated using a single-phase 120V to three-phase 220V VFD, and control can be managed through terminals, as demonstrated in the following video.

    In the video, it's demonstrated that ATO VFD offers multiple methods to adjust the frequency: Not only can you use the knob on the panel, but you can also utilize the buttons for adjustments.

    Existing reviews of 2 hp VFD, Single Phase 120V Input, 1ph/3ph 220V Output
    Will GK3000-SP1S1-1d5 drive accept 100V input?
    Will GK3000-SP1S1-1d5 drive accept 100V input? And if yes, then what will be its 3-phase output voltage in that case?
    From: Bruce | Date: 24/10/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The GK3000-SP1S1-1d5 drive can accept 100V input, and its 3-phase output voltage will be three phase 190V.
    In this case, your motor load is required to be very light (less than 70% of the VFD rated current is used after operation).
    The 100 Ω power supply at the input end must be stable before it can be used normally.
    Is it capable of communicating via Bacnet?
    We ordered the drive in the subject line.  Is it capable of communicating via Bacnet?
    From: Phill | Date: 17/10/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Our VFD currently only supports RS485 communication function and does Not have Bacnet.
    Is that the actual output voltage and amps?
    During run mode, the shift key changes the display from Hz to V and A. Is that the actual output voltage and amps?
    If so, the voltage exceeds 300v even though the motor specs (F1-01 through F1-05) have been saved during setup/configuration.
    From: Ahmed | Date: 03/03/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    1. Yes, during the run mode, the shift key changes the display from Hz to V and A.
    2. The displayed voltage you mentioned exceeds 300v, this is the DC bus voltage, not the input/output AC voltage. The VFD does not display the output voltage because the output voltage generally changes.
    I bought this frequency inverter
    I bought the EM15-SP1S1-1D5 Frequency inverter and want to make sure I wire it correctly. I need to know which are load and ground. I also to make sure of the input power connections. Thank you.
    From: June | Date: 29/05/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The input power is connected to L N, the motor is connected to U V, and the ground wires of the power supply and the motor are connected to the E terminal.
    Braking resistor for 2 hp VFD
    What is the recommended braking resistor value of 2 hp VFD, single phase 120V input, 1ph/3ph 220V output?
    From: Kunde | Date: 18/10/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Braking resistor: 100W, ≥70Ω. And the resistor should be connected between PB and P+ terminals.
    I am very satisfied with this 2 hp VFD
    I am looking to select a VFD appropriate for a pump motor. I was looking at SKU GK3000-SP1S1-1d5 to go along with a pump motor we may purchase: 1/3 HP, single phase, FLA 7/4 @ 115/230V. Can you please confirm if this is a good option?
    From: Thoms | Date: 07/06/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    As long as your motor will be configured for 1-phase, 230V and your supply voltage (VFD input) is 110/120V, then VFD of GK3000-SP1S1-1d5 will be the appropriate drive for your pump motor.
    Does your VFD have soft start capability
    I want to check if the GK3000-SP1S1-1d5 frequency drive has soft start capability.
    From: Jeffrey | Date: 10/08/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, it can, in adtion to speed control and much more features.
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