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    3kVA Single Phase 220v 50Hz to 110v 60Hz Converter

    5 out of 5 based on 12 reviews | Write a review
    3 kVA frequency converter, convert single phase 220V (France) 230V (New Zealand) 240V (UK) to 110V (Mexico) 120V (Canada), 60 Hz to 50 Hz or 50Hz to 60Hz, pure sine wave output, make different appliances work well on 50Hz/60Hz/400Hz power system.
    SKU: HZ-50-1103
    30-day Returns
    Delivery date: 6-12 days

    3 kVA static frequency converter, convert 240 volt 50Hz to 120 volt 60Hz with built-in step-down & step-up transformer, pure sine wave output for international appliances testing.


    Model HZ-50-1103 (Cabinet Type), HZ-60-1103 (Benchtop Type)
    Capacity 3 kVA
    Dimension Benchtop Design 590 (D)*490 (W)*230 (H) mm
    Cabinet Design 550 (D)*400 (W)*670 (H) mm
    Weight Benchtop Design 51 kg
    Cabinet Design 75 kg
    Input Voltage 1 Phase 2 Wire: 110V, 120V, 220V, 230V, 240V ± 10% (Option *)
    Frequency 50 Hz, 60 Hz or 400 Hz ± 5%
    Output Voltage, current 110V Setting (Low grade): 0-150V, 25A
    220V Setting 0-300V (High grade): 0-300V, 12.5A
    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

    Features and Safe Usage Guide

    Here is a video that shows you the main features of ATO single phase frequency converter and how you can use it to effectively and safely power electric equipment.

    Tips: Why is 60 Hertz selected for the United States?

    Westinghouse, which possesses the strengths in manufacturing and operation AC power supply technology, promotes the higher frequency standard of 60Hz after 1890(frequency standard compared with 25Hz low-frequency AC), which is used till now in the United States. In 1920, the America Federal Government established the electric power investigation meeting, recommending 60 Hz as the standard frequency of the United States.

    In 1893, the American GE company planed to adopt 50 Hz to some power supply systems in California according to the frequency standard of Edison system. However, because of the competitive pressure, it eventually yielded to the 60Hz standard of Westinghouse. The American technicians at that time believed that, 60Hz is superior to the 50Hz generally adopted in European countries. The generator of 60Hz has smaller size and the conversion efficiency of the transformer is high.

    Existing reviews of 3kVA Single Phase 220v 50Hz to 110v 60Hz Converter
    What's the best way to connect the terminals to the wall outlet?
    I am setting up my frequency converters. Can you share some videos or instructions on how and what's the best way to connect the terminals to the wall outlet? Also, how can I cover / insulate the open terminals on the frequency converter unit after connecting the cable wires to it?
    From: Chean | Date: 01/08/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    For the operation and use of the converter, you can refer to our demo video, please see on:
    And see cabinet frequency converter wiring and testing on:
    Need both 110/60 and 220/60 simultaneously with 230/50 input.
    The shop requires 3 kw power with dual American voltages (110 and 220 VAC single phase) @ 60 Hz output given European 230 VAC @ 50 Hz input. I don't want to manually switch between 110 and 220 as I will need to run tools that use both voltages simultaneously. What do you recommend?
    From: Oscar | Date: 27/06/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    You can consider this kind of equipment, but please contact our pre-sales technicians before placing an order.
    We can customize the input 230V 50Hz and output American standard split-phase voltage (L1 L2 N G, L+N=120V, L1+L2=240V 60Hz)
    Does this converter work?
    Hello, I received the order I placed for a frequency converter 3kVA. It looks like I made a mistake when ordering the unit. I received a 208V single phase input unit which will not work with my input power.  
    I have 120V single phase at 60Hz input power, 220V 60Hz split phase ( two 120V hot wires and a ground no neutral) or 3 phase 480V 60Hz power (three hot wires at 277V and a ground).  
    I need a unit that can run on one of those 3 input options and output 220V single phase at 50Hz. (one 220V hot wire , one neutral wire and a ground)
    What do you recommend? Will SKU: HZ-50-1103 work?
    From: fanny | Date: 14/06/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Don't worry, please provide us with the nameplate label picture of the 3KVA converter you received to further confirm the model, and we will give you a solution. We are very concerned about the problems you encounter, and we will do our best to meet your needs.
    Is there a way to adjust the converter's current limiting protection?
    Is there a way to adjust the converter's current limiting protection either on the input or the output side? It will be hooked up to a 20 amp circuit but I wouldn't mind having some redundancy built in. Also, can you clarify how much the no-load current draw is for this converter? I assume it is powering cooling fans and electronics even when there's no load on the device. And one last question, is it safe to use a multi-socket power strip surge protector on the 110V side of the frequency converter? I found this article that says one should not use a surge protector with a step-down transformer but this is a frequency converter and not a step-down transformer. On the 230V input side, we will be connected to a grounded circuit through a male plug so the line/neutral connections can't be reversed.
    From: Hahn | Date: 07/04/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    1. Please check the attached document description. Find the potentiometer on the main board, and turn it clockwise for 5 turns (note: clockwise decreases, counterclockwise increases the current), you can adjust and reduce the current protection threshold to about 20A.
    2. The No-load current is about 1-2A.
    3. There is no problem with adding a surge protector at the output.
    What the no load power draw is for the frequency converter?
    At 3kva and 230 volts input, the maximum current draw should be about 12.5 amps. I have a 20 amp grounded circuit that just powers electrical outlets that we plan to plug into so that should be sufficient for the load. However, my electrician is questioning the need for ≥4mm2 line/neutral input conductors since 2.5mm2 conductors should be adequate to handle 22-23 amps. Further, the electrical outlet conductors throughout the property are nominally 2.5mm2 which is adequate for a circuit protected by a 20 amp circuit breaker. If 4mm2 line/neutral conductors are required, we're not sure how this can be accommodated given the physical constraints of the home. If for some reason we need to limit the input current on this device to less than 20 amps to accommodate 2.5mm2 conductors, could we fuse the line or neutral input conductors for something less than 20 amps? Alternatively, can the over-current protection in the frequency converter itself be manually adjusted downward even it that means reducing the output power of the device? Lastly, my electrician is asking what the no load power draw is for the frequency converter?
    From: Daye | Date: 06/04/2023
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, this frequency converter has an output current of 12.5A at 230V, and a maximum output current of 25A at 110V. The output current of the converter is related to the load capacity you connect. So if you are not using the converter at full capacity, you can use 2.5mm2 copper cables instead of 4mm2 cables, no problem.
    I am considering buying a frequency converter
    Considering purchasing the 10kva frequency converter. I have a delta system for input. Will the output be a wye with a neutral?
    From: Fawcett | Date: 27/12/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, that's correct. Although the converter input (your supply) is Delta, the converter output will be Wye with a neutral.
    Do you have any recommendations for the frequency converter I bought?
    I want to convert 240V, 60Hz "supply" to 240V, 50Hz "load", to run a fountain of 300W? What do you recommend?
    From: Carlos | Date: 29/11/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Based on your specs, recommended frequency converter model: HZ-50-1102, 2kVA power capacity, input: 1ph, 240V (+/- 10%), 50/60Hz and output: 1ph (L, N, G), adjustable ( 0-300V), adjustable (40-120Hz), 8.4A.
    The frequency converter I bought needs to meet the power requirements
    I'm looking for a power converter that will convert single phase 115VAC 60Hz into 115VAC 400Hz 3 phase. The 10KVA unit would be fine for max power supply. What do you recommend?
    From: Pearson | Date: 14/10/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Based on your specs, recommended frequency converter model: HZ-50-1310, 10kVA power capacity, input: 1ph, 115V (+/- 10%), 50/60Hz and output: 3ph, Wye/Delta (L1, L2, L3 + N, G), adjustable (0-260V), adjustable (40-499.9Hz), 27.6A.
    Can your 3kVA frequency converter meet my needs?
    Can your 3kVA frequency converter take an input of 120V 60Hz and output 100V to 300V, with a frequency settable between 50 and 60 Hz?
    From: Burgess | Date: 13/10/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, that is correct, and here is the specs:
    Model: HZ-50-1103, 3kVA power capacity, input: 1ph, 120V (+/- 10%), 50/60Hz and output: 1ph (L,N,G), adjustable (0-300V), adjustable (40 -120Hz), 12.5A.
    How to buy a high quality 220V 50Hz to 110V 60Hz converter?
    I need a converter from 220v 50Hz to 110v 60Hz. Optimal 300watts or more. I would like to know how to buy it in Chile.
    From: Ktnwin | Date: 16/07/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Ok, if your 300W equipment is not a motor/transformer, and its just an electronics or heater or any other, then recommended frequency converter model: HZ-60-1101, 1kVA power capacity, input: 1ph, 220V (+/- 10 %), 50/60Hz and output: 1ph (L,N,G), adjustable (0-150V), adjustable (40-120Hz), 8.4A.
    Perfect 3kVA single phase converter
    We are needing 3kva, single phase 230V/50Hz to 110V.60Hz converte. What do you recommend?
    From: Mharper | Date: 27/05/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Based on your specs, recommended frequency converter model: HZ-50-1103, 3kVA power capacity, input: 1ph, 230V (+/- 10%), 50/60Hz and output: 1ph (L,N,G), adjustable ( 0-150V), adjustable (40-120Hz), 25A.
    3kVA 1-phase frequency converter
    For your 3kVA, 1-phase frequency converter, is the Output voltage adjustable/fixable to a certain voltage?
    From: Matthias | Date: 11/08/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    It is adjustable, you can adjust the voltage as you like from 0-300V.
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