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    50 hp (37 kW) VFD, 3 Phase 220V, 400V, 460V

    4.5 out of 5 based on 2 reviews | Write a review
    Discounted 50 hp (37 kW) VFD, three phase 220V, 400V, 460V energy saving variable frequency drive for motor speed controls, strong overload capacity, brand new direct sale by manufacturer with fast delivery.
    SKU: GK3000-4T0370G
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    50 hp (37 kW) variable frequency drive for energy savings, three phase 220V, 400V, 460V for selection, RS485 enabled.


    Basics Model GK3000-4T0370G/ GK3000-2T0370G
    Capacity 50 hp (37 kW)
    Shipping weight 22 kg
    Dimension 530*320*235 mm for GK3000-4T0370G/ 555*400*300 for GK3000-2T0370G
    I/O Feature Rated current 75A at 380V ~ 480V, 150A at 220V ~ 240V
    Input voltage 3 phase 220V /400V /460V AC ±15% (Optional)
    Input frequency 50 Hz / 60 Hz
    Output voltage 3 phase AC 0~input voltage
    Output frequency 0Hz~1000Hz
    Over load capacity 150% of rated current for 1 minute, 180% of rated current for 3 seconds
    Control Feature Control mode V/F control;
    Sensorless vector control;
    Communication RS485
    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 5%-95%, without condensation
    Altitude ≤1000m; VFD will be derated if above 1000m
    Impingement and oscillation Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
    Store environment –20℃~ +60℃; no dust, no corrosive gas, no direct sunlight

    Tips: Variable frequency drive service life extension methods

    1. Do not install the VFD on vibration device, because the main circuit connecting screws will be easy to loose and causing damage.
    2. Wiring problem: The VFD input is best to be connected to an air switch to control the current value and to prevent the occurrence of short circuit. The "N" end must not be grounded. Control line should not be too long. Because this makes the control board is easily disturbed by electromagnetic interference and occur malfunction, which will lead to control board damage. The control line more than 2 meters is best to use shielded wire. Do not install a large current and frequent operating contactor next to the VFD, because it has strong disturbance and often causing malfunction (show all kinds of faults).
    3. Frequent emergency stop VFD is best not to rely on the built-in brake device, but to install additional brake resistance or mechanical brake, or the VFD will often backlash impacted by the motor counter electromotive force, the failure rate will be greatly increased.
    4. If the VFD is often running at low speed below 15HZ, the motor should be attached to the cooling fan.
    5. Dust and moisture are the most deadly killers of the variable frequency drive. It is best to install the VFD in the air-conditioned room, or installed in the cabinet with strainer mesh, and to regularly clean the dust of circuit board and the heat sink. If a VFD is not in used for a long time, use a hair dryer to blow the circuit board before restarting.
    Existing reviews of 50 hp (37 kW) VFD, 3 Phase 220V, 400V, 460V
    Is this UL(or other American listing agency)?
    From: Tyler | Date: 23/04/2024
    Was this review helpful? Yes No (0/0)
    ATO Responded
    ATO VFDs are only CE certified.
    Can ATO provide me with the VFD I want?
    Can you provide a VFD for 7.5 Hp, 240 V single phase motor.
    From: Appoli | Date: 15/06/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, we can. GK3000-1S0075G, 10HP drive with output current of 50A.
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