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    3kVA 3-Phase 380v 50Hz/480v 60Hz Frequency Converter

    5 out of 5 based on 10 reviews | Write a review
    3 kVA pure sine wave AC power frequency converter, 220V/240V/380V/480V input, three phase 0-520V output, converting 50Hz power to 60Hz 400Hz for export product testing or operation of equipment at international frequency and voltage.
    SKU: HZ-50-3303
    30-day Returns
    Delivery date: 6-12 days

    3 kVA three phase solid state (static) frequency converter, converting 50 Hz to 60 Hz, 400 Hz adjustable, compatible with 3 phase 220V - 240V, 380V, 400V - 480V power system, 3-phase or 1-phase output.


    Model HZ-50-3303
    Capacity 3 kVA
    Dimension 680 (D)*500 (W)*970 (H) mm
    Weight 120 kg
    Input Voltage 3 Phase 4 Wire: Wye Type 190/110, 200/115, 208/120, 220/128, 230/132, 240/139V ±10% (option *)
    3 Phase 4 Wire: Wye Type 380/220, 400/230, 415/240, 440/254, 460/265, 480/277V ± 10% (option *)
    3 Phase 4 Wire: Della Type 220, 230, 240, 380, 400, 415, 440V ± 10% (option *)
    Frequency 50 Hz, 60 Hz or 400 Hz ± 5%
    Output Voltage, current 110V Setting (Low grade): 0-150V (phase voltage), 0-260V (line voltage) 8.4A
    220V Setting (High grade): 0-300V (phase voltage), 0-520V (line voltage) 4.2A
    Load stabilization Rate ≤±1%
    Frequency 50Hz, 60Hz up to 400Hz adjustable
    -When the output is 400Hz, the load capacity can only reach 50% of the rated capacity.
    -When the output is ≤120Hz, the load capacity can reach 100% of the rated value.
    -You can just adjust converter output frequency in the range (40-400Hz) for 400Hz option.
    Frequency Stability ≤±0.01%
    Harmonic Distortion Pure Sine Wave ≤2%
    Frequency meter 4 digit, digital frequency meter, resolution 0.1Hz/Step
    Voltmeter 4 digit, digital voltage meter, resolution 0.1V
    Ammeter 4 digit, digital ammeter, resolution 0.1A
    Watt meter 4 digit, digital Watt meter, resolution 0.1W
    Protection With overload, short circuit, over temperature
    Instantaneous power failure protection and alarm device
    Working Environment Temperature 0 - 40 deg.℃
    Humidity 0 - 90% (Non condensation)
    Warranty 18 months

    Tips: Influence of 50Hz 60Hz exchange to resistive components

    Most people usually believe that these components are simply one resistance. Connecting with both AC and DC currents can satisfy its lightening and heating functions. Its power can be satisfied through satisfying the voltage grade requirement. In fact, that is not the case. The lamp and heater are assimilated to regulated conductor(take roundness as an example). The theoretical current is evenly distributed in the conductor. When we supply AC current into it, because of the electromagnetic induction, the electromotive force impending current will be perceived in the conductor center. At this moment, the current tends to the outer ring and outer surface of the conductor. The distribution starts to become uneven. This is a “skin effect” phenomenon. Therefore, it is not hard to infer that, when the voltage is fixed, the frequency exchanges from 50 Hertz to 60 Hertz application, the induced electromotive force increases, the area of the conductor center ring enlarges, the active area of conductor current circulation decreases, the corresponding conductor resistance increases, the current reduces, and the power decreases.
    Strictly speaking, it still affects the resistive element. It is sometimes that it does not took into account because the low voltage level does not affect its performance.

    Existing reviews of 3kVA 3-Phase 380v 50Hz/480v 60Hz Frequency Converter
    could you help us with this matter?
    Hi, we set all parameters as instructions but we are getting E-09 code, also we did the asynchronous motor static auto-tune and it doesn’t run it doesn’t allow us to select step 1 or step 2, could you help us with this matter?
    From: Luke | Date: 08/01/2024
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The E-09 code is a VFD overload fault, indicating that the motor is heavily loaded.
    Please set VFD parameters P0.12=P0.13=20s (extend acceleration and deceleration time), PA.01=5 (overload gain), and test again.
    Please note: The motor should be tested without a load connected.

    If the VFD still jumps out of fault E09, after the VFD stops, please check the VFD monitoring parameter b0.04 (real-time output current) and tell us what A is the current value displayed by b0.04?

    We only recommend using the self-learning function if your three-phase motor is a synchronous motor.
    It would be better if you could provide a video to us for confirmation. You can send us the large video file via
    a special question
    It is a special question related to possibility to utilize this converter on board ships without tripping by ship power network quality control devices. Maybe you know that on board the ships are being carried out constant monitoring of the current leaks to vessel body(the ship’s main has 3phase with insulated Neutral).
    From: joseph | Date: 23/11/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    This device that carries out the constant monitoring of the current leaks to the vessel body does not affect the use of our converters, because our converters have been used normally on cargo ships without problems. Of course, you can also manually draw and provide the wiring diagram of the entire equipment on board for us to further confirm.
    We need a Frequency Voltage converter
    We are a company based in Ireland and we have some machines to run with 60hz   120/208V.
    Total current and Power we need:  75A and 20KW.
    we are interested to buy a converter for this, what do you recommend ?
    From: Salar | Date: 14/08/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The specification of the inverter power supply used will be different for different types of loads. For example, if your load is a motor type, then your inverter power supply is recommended to be scaled up to 5 to 7 times its capacity.
    Therefore, please contact our sales team and describe your load type and we will then recommend the right inverter power supply for you.
    Recommended frequency converter model
    We’re looking for frequency converters to be installed in a testing area where we test 6 industrial washing machines simultaneously. Those machines require different tension and frequency, so we must convert from 400v-60Hz (USA industrial standard) to:
    240v 1ph-50hz
    380v-416v-50Hz 3 phase and (380 to 416 Volts is phase to phase) measurement is taken line to line. Please note it is three phase with a neutral though.
    We must provide:
    Rated current is 50amps with a nice to have of 60amps for the 380-416v range.
    The 240v single phase would be under 25 amps.
    Inrush current would be x2 rated current for 10ms.
    From: Jwarner | Date: 26/12/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Based on your specs, recommended frequency converter model: HZ-50-33150, 150kVA power capacity, input: 3ph, Wye (L1,L2,L3 + N,G), 400V (+/- 10%), 50/60Hz and output: 3ph, Wye/Delta (L1, L2, L3 + N, G), adjustable (0-520V), adjustable (40-120Hz), 209A.
    My question about your frequency converter
    Would your frequency converter input be either 115VAC or 200VAC at 60 Hz? Will we be using both voltages?
    From: Mccondichie | Date: 22/11/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Complicated programming is not required! As you said, it's just to adjust the converter outputs for required frequency and voltage, no more.
    I am interested in your 3kVA frequency converter
    We're interested in purchasing your 3 kVA 50Hz to 60Hz frequency converter. We're based in Europe and therefore the converter should have 230V 50Hz input with 40-120Hz output frequency range and 0-150V / 0-300V output voltage range. What do you recommend?
    From: Sidss | Date: 12/10/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Based on your choice, recommended frequency converter model: HZ-50-1103, 3kVA power capacity, input: 1ph, 230V (+/- 10%), 50/60Hz and output: 1ph (L, N, G), adjustable ( 0-300V)/(0-150V), adjustable (40-120Hz), 12.5A/25A.
    Can your frequency converter do this?
    We need to convert 600V 60Hz to 600V 50Hz. Do you have a device that can do this?
    From: Sallym | Date: 10/10/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, we have. Just inform about the following, so you can recommend the most suited converter model:
    1. For your 600V 60Hz supply configuration; Is it Wye (L1, L2, L3 + N, G) or Delta (L1, L2, L3 + G)?
    2. For your 600V 50Hz load. What is its power capacity, and rated current? And what is its kind (motor, electronics, heater etc.)? If it is a motor, does it have a starting controller like VFD or soft starter to limit its inrush current at the starting period?
    Specifications of 3kVA 3-phase frequency converter
    I need the 3kva 3 pahse static freq converter model HZ-50-3303
    Input 3 phase 4 wire: Wye Type 380/220 50Hz
    Output 3 phase 115/400Hz Wye (L1, L2, L3   N, G)
    This instrument will not power motor only some power supplies
    From: Deraneko | Date: 19/08/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, of course. Converter Specs:
    Converter model: HZ-50-3303, 3kVA power capacity, input: 3ph, Wye (L1,L2,L3 + N,G), 380V (+/- 10%), 50/60Hz and output: 3ph, Wye/Delta (L1,L2,L3 + N,G), adjustable (0-260V), adjustable (40-499.9Hz), 8.4A.
    We recommend frequency converters according to your needs
    I want to convert 1-phase, 208V, 60Hz To 1-phase, 230V, 50Hz, to run 30A UK motor with a drive "so no expected high inrush current". What do your recommend?
    From: Turbo | Date: 11/08/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Based on your specs, recommended frequency converter model: HZ-50-1110, 10kVA power capacity, input: 1ph, 208V (+/- 10%), 50/60Hz and output: 1ph (L,N,G), adjustable (0-300V), adjustable (40-120Hz), 41.6A.
    How to buy a suitable 3kVA inverter?
    I am looking to purchase 3 KVA frequency converter. I wish to convert Australian power, l think is 230v running @ 50hz to US 110v 60hz. Can you confirm that the Australian voltage @230v is correct?
    From: Jwhite | Date: 20/07/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, our frequency converter with an input voltage of 230V has (+/- 10%) voltage tolerance, so it works fine for 220V, and 240V supply as well. Consequently, its okay for Australian supply.
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