21 Aug 2020

Single-Phase To 3-Phase Converters

by | posted in: Variable Speed Drives | 148

Single-Phase To 3-Phase Converters

If you have a 3-Phase motor/device and do not have ready access to 3-Phase power, there are workarounds you can use to get your equipment properly powered. Numerous types of 3-Phase Converters are available. These units convert a standard Single-Phase supply to a useable 3-Phase supply where typically it would be expensive or difficult to install one.

Static Converters

These devices take advantage of the fact that while a 3-Phase motor cannot start on Single-Phase power, it can stay running on Single-Phase power once it is started. A static converter does this with the help of capacitors (devices that can store charge), which lets the static converter stand in for one of the phases, albeit in an inefficient way that is assured of decreasing the motor’s effective life span.

Rotary Phase Converters 

These devices act as a combination of a substitute 3-Phase motor and an independent generator. This device includes an idler motor, which, once it is set in motion, does not turn any moving parts in the parent machines, but instead generates power so that the entire set-up can mimic a 3-Phase power system reasonably well.

Variable Frequency/Speed Drives (VFDs/VSDs)

These devices make use of components called inverters, which can be used to create alternating current at almost any desired frequency and replicate most of the conditions inside a standard 3-Phase motor.

EMHEATER offers three products for Single Phase to 3-Phase Conversion as follows:

  • G1 Series Variable Speed Drive: Single-Phase (220V) Input and 3-Phase (220V) Output
  • G13 Series Variable Speed Drive: Single-Phase (220V) Input and 3-Phase (380V) Output
  • SP1 Series Solar Drive: Solar DC (or Single Phase AC 220V) Input and 3-Phase (220V) Output

For more details please also see our FAQ entry HERE.

Converter VSDs

For more information regarding VSDs, please refer to the following related blog posts:

148 Responses

  1. Dillon
    | Reply

    Looking to just test 3 phase equipment to see if it works, which will be the best option and how much is it?

    • TCGC_admin
      | Reply

      Thanks for the enquiry, responded to you via email.

      • Monty Van Rooyen
        | Reply

        Hi. I am a farm manager from Plettenbergbay and often visit Johannesburg.
        I need to drive a 4kw 3 phase motor with Single phase from a 11kw solar Inverter which runs a big Mono pump pushing water from a river to the farm house 800m away. I would like to know if your Converters / Inverters will be able to do this? Please provide Tel number, location and contact person for me to contact. I also need a price for a 5 or 6kw unit.

        • TCGC_admin
          | Reply

          Thanks for the enquiry Monty, we replied via email. Thanks

          • TCGC_admin
            |

            Thanks for the enquiry Mervin, we will reply via email. Thanks

      • Dries Kotze
        | Reply

        Morning, I have 230volts 50 hz single fase supply.
        I what to convert it to 3 fase 230volts,and it’s a 3.3kw motor .
        What is my options and prices please

        • TCGC_admin
          | Reply

          Thanks for the enquiry Dries, we replied via email. Thanks

        • Mervin
          | Reply

          I am an electrician and I require a converter, that will have single 220 single phase input and a 389 phase out.
          380 boltolt between the phases an 5 amp.
          Thanks
          Mervin

          • TCGC_admin
            |

            Thanks for the enquiry Mervin, we will reply via email. Thanks

    • Jeandre Fourie
      | Reply

      Hi i would please like quotation on unit that would provide 10 amp output . Supplying 10 to 15 kwv.

      • TCGC_admin
        | Reply

        Thanks for the enquiry Jeandre, we replied via email. Thanks

    • Mervin
      | Reply

      I am an electrician and I require a converter, that will have single 220 single phase input and a 389 phase out.
      380 boltolt between the phases an 5 amp.
      Thanks
      Mervin

      • TCGC_admin
        | Reply

        Thanks for the enquiry Mervin, we will reply via email. Thanks

  3. Ivan
    | Reply

    Hi, ive got a 3 phase inverter plasma cutter and need a converter from single phase to 3 phase. Please assist on what to use?

    • TCGC_admin
      | Reply

      Thanks for the enquiry, responded to you via email.

  4. Neels Kleinsmith
    | Reply

    Looking for a Single-Phase To 3-Phase Converter for a 380v milling machine with a 1.5kw motor please.

    • TCGC_admin
      | Reply

      Thanks for the enquiry, responded to you via email.

    • Vinesh
      | Reply

      Looking for a Single-Phase To 3-Phase Converter for a 380v bending machine with a 3kw motor please.

      I’m based in South Africa what is the most economical way to achieve this and costs

      Regards

      • TCGC_admin
        | Reply

        Thanks for the enquiry Vinesh, we replied via email. Thanks

  5. We wash laundry
    | Reply

    Hi.
    Need more info on a single phase to 3 phase converter to run 2x 24kg 3 phase tumble dryers from a single phase connection.

  6. Jacques
    | Reply

    Dear Sir/Madam, We have a Single Phase Line supplying our house. Im considering going off-grid but that will be a 12 month project as i dont have the capital to do it at once. I want to start with a 3 Phase Inverter with 1 or 2 batteries as a back-up. That should sort out load shedding. Im seriously considering 3 Phase Inverter as we have done some extension to our house and the single phase is not enough during winter. The question: Can i connect the 3 Phase Inverter to the current Single Phase line that is supplying the house?

    • TCGC_admin
      | Reply

      Thanks for your query Jacques, we will be responding via email. Thanks

      • esme prinsloo
        | Reply

        I am 70 year old lady renting farm house I can only afford generator to run lights etc in house but need 3 phase occasionally to pump water from borehole with 3 phase pump Can you assist with advise plse Simple language please I am 70 and female not to technical thanks all Blessings

        • TCGC_admin
          | Reply

          Thanks for the enquiry Esme, we will be replying via email. Thanks

          • Petrus
            |

            Good day i need single phase to 3 phase vfd. 5.5kw.

          • TCGC_admin
            |

            Thanks for the enquiry Petrus, we have replied via email. Thanks

  7. Eduard Wansbury
    | Reply

    I’m have a 2 post lift with a 3.5 kw moter its 3 phase problem is I onley have a 220 single phase power with a 30 Amp sirket braker 0828267962

    • TCGC_admin
      | Reply

      Thanks for the query Eduard, we are replying via email.

    • Mervin
      | Reply

      Hi.
      I am am electrician, i reqire price of a single phase 220 volt input and phase output.
      380 v between phases output.
      The load is about 3 to 5 amp
      Thank you.
      Mervin

      • TCGC_admin
        | Reply

        Thanks for the enquiry Mervin, we will reply via email. Thanks

  8. Alfred Meyer
    | Reply

    Good day please quote me on static ,rotary and Vsd 230v single phase input to 380v 3 phase output to drive a 5kw 3phase motor for my industrial table saw. I do have a rotary phase converter ( motor and step up transformer but I need a backup unit. What would you suggest the best option between the above mentioned systems. Price and availability quote please.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Alfred, will be replying via email.

  9. Andries
    | Reply

    Hi
    I would like a quote and more information regarding these converters.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Andries, we will be replying via email. Thanks

      • Carlo
        | Reply

        I got a 3 phase deck oven but only single phase. What would you recommend. The unit is 400 v ~50hz 19800W

        • TCGC_admin
          | Reply

          Thanks for the enquiry Carlo, we will be replying via email. Thanks

  10. Rheeder Piet
    | Reply

    Looking for VF drive for 4kw motor 220v in and 380v out

    • TCGC_admin
      | Reply

      Thanks for the enquiry Piet, we will be replying via email. Thanks

  11. Chris Schembri
    | Reply

    Good day, do you supply rotary converters at all? 220v single phase to 380v three phase?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Chris, we will be replying via email. Thanks

  12. Avelino
    | Reply

    Hi, I have a 3phase Co2 welding machine, I’m working in a residential area which uses sigle phase, how do I convert the phase from one to the other.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Avelino, we will be replying via email. Thanks

  13. PG Neethling
    | Reply

    Morning. I have a 3 phase meat saw which I need to run on single phase powerpoint. What do I need to do this please. Details on serial nr plate is as follows;
    V – 380
    A – 2,05
    W – 750
    Motor model :EH-25 by Freddy Hirsch

    • TCGC_admin
      | Reply

      Thanks for the enquiry Gerhard, we will be replying via email. Thanks

  14. Armien
    | Reply

    Hi there, I’ve got a 3 phase ac/dc welding machine that I’d like to use at home off single phase power.
    Can you guys advise what my options are?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Armien, we will be replying via email. Thanks

  15. Marius Olivier
    | Reply

    Looking for a 220v single phase to 380v three phase converter too run motor for testing purpose. Max 2.2kw.
    What are they price for

    • TCGC_admin
      | Reply

      Thanks for the enquiry Marius, we will be replying via email. Thanks

  16. Naeem
    | Reply

    Hi, please may we have a quote on one of these converters

    We currently have single phase power and need to power up 440v machinery

    • TCGC_admin
      | Reply

      Thanks for the enquiry Naeem, we will be replying via email. Thanks

  17. Graeme
    | Reply

    Good day
    I have a 2post car lift that is 3 phase only runs a hydrolic pump. Need a 3phase converter from single Phase for a back up.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Graeme, we will be replying via email. Thanks

  18. Riaan Vermaak
    | Reply

    Looking for a converter to run 4 kva 380 motor 220 in and 380 out

    • TCGC_admin
      | Reply

      Thanks for the enquiry Riaan, we will be replying via email. Thanks

  19. Philip
    | Reply

    Hi

    Our residential home has 3 phase power. I want to buy a generator for loadshedding just to run the tv, wifi and a few lights. Do I need to buy a 3 phase generator, or will a single phase generator (e.g. inverter generator) work as well?

    Thanks.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Philip, we will be replying via email. Thanks

  20. Huntley Conradie
    | Reply

    3 phase 380V aircon got only 220v singlephase power. Do you have a silution for me?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Huntley, we will be replying via email. Thanks

  21. Ben Stroh
    | Reply

    I have a 3phase convection oven i need to run but only have a single phase supply.
    Oven- 380V
    25.2kW

    • TCGC_admin
      | Reply

      Thanks for the enquiry Ben, we will be replying via email. Thanks

  22. LAWRENCE CHETTY
    | Reply

    In my factory i have a single phase supply. I have an embroidery machine which runs on 3 phase. The motor, I think is single phase.
    how do I convert the single phase supply to operate my machine.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Lawrence, we will be replying via email. Thanks

  23. Yusuf
    | Reply

    Hi, i have a three phase 0.75kw copy router & single phase power supply, can you please advise

    • TCGC_admin
      | Reply

      Thanks for the enquiry Yusuf, we replied via email. Thanks

  24. andre
    | Reply

    Looking for a Single-Phase To 3-Phase Converter for a 380v milling machine with a 1.5kw motor please.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Andre, we will be replying via email. Thanks

  25. Billy
    | Reply

    Hi, please advise on a solution to power a 4kw motor through a single phase supply. The motor is 230v single phase and 400v 3 phase.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Billy, we will be replying via email. Thanks

  26. Chris de Jager
    | Reply

    Good day. I have single phase power but I need to run butchery equipment that is three phase. I have a 5.5 kw mincer, a 0.9 kw stuffer and a 2.0 kw meat bandsaw. I will only operate the machines one at a time.Can you please help and advise what is the best solution available and what the cost will be. Thank you. Regards Chris

    • TCGC_admin
      | Reply

      Thanks for the enquiry Chris, we will be replying via email. Thanks

  27. Arthur Dirikwe
    | Reply

    hie

    I’m looking for a single phase to three phase converter I want to use it for secondary injection tests so current output should be around 15A.

    regards

    • TCGC_admin
      | Reply

      Thanks for the enquiry Arthur, we will be replying via email. Thanks

  28. Dani Smit
    | Reply

    Good day. Is it possible to drive my 3 phase home lift from single phase solar supply?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Dani, we will be replying via email. Thanks

  29. Pheello Monareng
    | Reply

    I live in an area where there is no electricity supply. I am thinking of buying a generator to power my 5kw 3 phase motor. I just to know if this can work.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Pheello, we will be replying via email. Thanks

  30. Tshepo
    | Reply

    Hi please email me the price of the conveter I might be interesyed

    • TCGC_admin
      | Reply

      Thanks for the enquiry Tshepo, we will be replying via email. Thanks

  31. Philip Buys
    | Reply

    Hi. I have a 3 phase generator with a auto change over switch but the issue is it doen not switch of when the power comes on as the generator needs 3 phase electricity to trigger the change over switch. Currently I only have single phase.

    Do you have something that can assist?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Philip, we will be replying via email. Thanks

  32. Rowan
    | Reply

    Hi I have a 15 kv single phase generator, I would like to convert to three phase to charge a three phase solar system(also 15kv) batteries. The solar has to have three phase incoming .
    Yours Sincerely

    • TCGC_admin
      | Reply

      Thanks for the enquiry Rowan, we will be replying via email. Thanks

  33. Antony Taylor
    | Reply

    I plan on dumping Eskom on my small holding farm and going single phase solar, but the borehole pump is 3 phase 1.5kw
    I need to choose a 3kw or 5 kw system but need a 3 phase converter for the pump
    Please advise on converter and price

    • TCGC_admin
      | Reply

      Thanks for the enquiry Antony, we will be replying via email. Thanks

  34. Tinashe
    | Reply

    Hi , i need to convert single phase to 3phase … ,To run a 10kw 3phase oven

    • TCGC_admin
      | Reply

      Thanks for the enquiry Tinashe, we will be replying via email. Thanks

    • TCGC_admin
      | Reply

      Thanks for the enquiry Ryan, we will be replying via email. Thanks

  36. Johan
    | Reply

    Good day
    I have a saver that works on 3 phase but I only have single phase power supply. Where can I get a converter that convert from single phase to 3 phase.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Johan, we will be replying via email. Thanks

  37. Joe
    | Reply

    I have a 3 phase generator on the single phase power supply. Generator is for house hold use
    I need my generator to run on auto mode now the ATS of the generator want to sense All three phases there fore I need a phase converter that can give the out put of 380V +-10Amp only for the ATS signals.
    NB: No load on the converter will be connected
    Your assistance will be highly appreciated
    Thanking you

    • TCGC_admin
      | Reply

      Thanks for the enquiry Joe, we will be replying via email. Thanks

  38. Steven Neethling
    | Reply

    Hi whats the price on a rotary converter just the switches and capacitors i have.my own 11kw idler motor

    • TCGC_admin
      | Reply

      Thanks for the enquiry Steven, we will be replying via email. Thanks

  39. Frik Kruger
    | Reply

    Good day. I have a 380V 5,5kW 3 phase hydraulic press but only have 220V solar power installed. I have two 5kW Deye inverters installed with a combined output of max 50A. Can I use a single phase motor or do you have a VSD single phase to three phase available that will be able to run this motor

  40. Jurie Steyn
    | Reply

    I would like to find out more on what i need to connect from single phase 220V to a 3 phase laser welding machine 220V atleast 6kw

    • TCGC_admin
      | Reply

      Thanks for the enquiry Jurie, we will be replying via email. Thanks

  41. Johan Pieterse
    | Reply

    I have a 1.5kw 3 phase borehole pump on a farm. When we have eskom line trouble, we sometimes are without power for days. I have a portable 8kw single phase generator that I want to use when needed to run the borehole to fill my water tanks. I want the get it setup so that when needed the generator can be used to power the borehole for the hour or 2 to fill the tanks. Can you send me a quote for something to do this for me?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Johan, we will be replying via email. Thanks

  42. Rustum Shabodien
    | Reply

    Hi there. I have single phase at my residence but I would like to use a 3phase Cnc milling machine at my home. Do you have a option for me?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Rustum, we will be replying via email. Thanks

  43. Mevelin
    | Reply

    Hi There.
    I Have a 3 phase lathe and milling machine that i want an inverter for. I wont ne using them both at the same time. Can you advise me on which inverter i would need and pricing.
    Milling Machine – Hartford 3HP 380V , 5amp, 50Hz, 4pole, RPM 1430
    Lathe – Colchester Bantam 1600 Lathe, 380V, 50Hz, 2.1/6.7Amps

    • TCGC_admin
      | Reply

      Thanks for the enquiry Mevelin, we will be replying via email. Thanks

  44. Ben Hendrikse
    | Reply

    Good day,

    I want to run a CNC Router at my home. The Router spindle is 6Kw 380V, please advise if your “G13 Series Variable Speed Drive: Single-Phase (220V) Input and 3-Phase (380V) Output” will be sufficient to run the router?

    Can you please send me quote for the unit that will be able to operate the mill spindle from 220V input to 6Kw 380V output?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Ben, we will be replying via email. Thanks

  45. Theunis van Schalkwyk
    | Reply

    Hi All,

    I will be going off Grid and will now only have 230V single phase and the only thing on 3 phase 380V is my Bore hole pump at 2,1 kW.
    Do you have a VSD that can run my 3 phase Borehole pump from 230V single phase???

    • TCGC_admin
      | Reply

      Thanks for the enquiry Theunis, we will be replying via email. Thanks

  46. KAMALOODIEN MOHAMED
    | Reply

    Hi, got a 3-phase borehole setup. 2.2 kw Pump motor. Contactor with 3 phase breaker. Would like to convert to prepaid meter from Eskom, they say they do not supply 3 phase prepaid rural. They can supply only single phase 16kva. can I fit a G13 single to 3 phse converter just to let my borehole run 60 minute a day and do you have a recommended person/company for the Montagu area? advise much appreciated.
    Kamal
    Montagu

    • TCGC_admin
      | Reply

      Thanks for the enquiry Kamaloodien, we will be replying via email. Thanks

  47. Herman van Staden
    | Reply

    Hi
    I have installed a solar system and converted my three phase house to single phase to simplify the system. The only problem I have is a three phase borehole pump. I have the choice to either replace the pump or convert the single phase to three phase at the pump. What do you suggest?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Herman, we will be replying via email. Thanks

  48. Kyle
    | Reply

    Good Day, we have a 12kW 3phase inverter in our home, we have been having long power outages of late that drain the batteries completely. I have a single phase 8kw generator I’d like to use to charge the batteries in these instances but there is only a 3phase generator input. Would you have a single to three phase inverter that could assist here?

    • TCGC_admin
      | Reply

      Thanks for the enquiry Kyle, we will be replying via email. Thanks

  49. Mukiibi Habraham
    | Reply

    I have a maize mill machine of 27 kilowatts.a three phase motor.
    But only singles phase service available near me here in Ngcobo eastern cape.
    Do you have any option for me to work
    0780385229

    • TCGC_admin
      | Reply

      Thanks for the enquiry Makiibi, we have replied via email. Thanks

    • TCGC_admin
      | Reply

      Thanks for the enquiry Hermanus, we have replied via email. Thanks

  51. Phillip Lackson
    | Reply

    Hi how are you the soft starter can’t run its just vibrating
    Whenever I try to switch it on please how can I reset it to factory settings

    • TCGC_admin
      | Reply

      Thanks for the enquiry Phillip, we have replied via email. Thanks

  52. Sagren Moodley
    | Reply

    HI,
    Kindly assist , we have a air compressor with these specifications = 400v , 50Hz, 7.5Kw , 3phase.
    We require a step up from 220v 1phase to 380v 3phase.
    Thank you.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Sagren, we will reply via email. Thanks

  53. Jono
    | Reply

    Looking for a vfd inverter converter single phase 220volts input to three phase 380volts out, 7.5Kw 10hp 40A

    • TCGC_admin
      | Reply

      Thanks for the enquiry Jono, we will reply via email. Thanks

  54. Euprold Mdluli
    | Reply

    Hi, I’m looking for single phase to three phase converter to power a motor that is 1.1kw 380V

    • TCGC_admin
      | Reply

      Thanks for the enquiry Euprold, we will reply via email. Thanks

  55. Jan Celliers
    | Reply

    We have a 1.5 Kilowatt 380 volts AC 3-phase borehole pump. We have a 220 volts AC 6 kilowatt single-phase generator.
    Can you please assist me with a device to convert this single-phase into 3-phase, big enough to run the borehole pump. Also please assist with the price. Thank you.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Jan, we will reply via email. Thanks

  56. Wayne Jenkinson
    | Reply

    I am looking for a device that can change single phase to 3 phase to run an alternator test bench. What would such a device set us back.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Wayne, we have replied via email. Thanks

    • TCGC_admin
      | Reply

      Thanks for the enquiry Mosia, we will be replying via email. Thanks

  58. Waqar
    | Reply

    Hi morning..
    I want to convert single phase output (220v)to three phase output 380v how to possible tell me parameters setting please

    • TCGC_admin
      | Reply

      Thanks for the enquiry Waqar, we replied via email. Thanks

  59. Waqar
    | Reply

    Good day
    Just need parameters to change output 220v to 380v I have EM12-G3-004/P3-5d5
    Thanks

    • TCGC_admin
      | Reply

      Thanks for the enquiry Waqar, we replied via email. Thanks

  60. Theodorus de Lange
    | Reply

    Good day, I have 2 submersible pumps, 2.2kw and a 7.5kw. we installing a solar system single phase hybrid, please quote and send specs for two suitable units. 220v single phase to 400v three phase.

    We are in Zambia.
    Thank you.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Theodorus, we replied via email. Thanks

  61. Vinesh
    | Reply

    Looking for a Single-Phase To 3-Phase Converter for a 380v bending machine with a 3kw motor please.

    I’m based in South Africa what is the most economical way to achieve this and costs

    Regards

    • TCGC_admin
      | Reply

      Thanks for the enquiry Vinesh, we replied via email. Thanks

  62. christiaan
    | Reply

    Good day. I am looking for a phase converter to run a 11kw 380v screw compressor on 220v single phase power. Firstly is this possible and what would the costs be to get this to work.

    • TCGC_admin
      | Reply

      Thanks for the enquiry Christiaan, we replied via email. Thanks

  63. Matt Van Lier
    | Reply

    Hi there

    Need conversion from single phase to run 3 phase air conditioner. Max power draw 11kw

    • TCGC_admin
      | Reply

      Thanks for the enquiry Matt, we replied via email. Thanks

  64. Melusi
    | Reply

    Good day,
    I have a 3phase borehole pump at the farm, I’ve recently had single phase installation from Eskom. Would this be able to run my .75kw pump?

    • TCGC_admin
      | Reply

      Thanks for the enquiry, we replied via email. Thanks

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