Electrical Wiring InstallationHow To

How To Wire a 3-Phase kWh meter? Installation of 3-Phase Energy Meter.

How To Wire a Three Phase kWh Energy Meter? (3-phase, 4 Wire Energy Meter)

Installation of 3 Phase kWh Energy Meter

today, we are going to show that how to wire and install a 3-Phase kWh energy meter (Three phase or Poly Phase (3-phase, 4 Wire)  (Digital or Analog Energy Meter) from the supply to The Main Distribution Board?

Below is the connection of 3-Phase ( Three phase or Poly Phase (3-phase,4 Wire)) kWh meter (Digital or Analog Energy Meter) from the Supply to The Main Distribution Board.

How To Wire a 3-Phase kWh meter? Installation of 3-Phase Energy Meter.
How To Wire 3-Phase kWh meter

Below is the most common inner connection of of 3-Phase energy meter.

how to install a three phase kWH or Energy meter

Here is another live example of a a three phase energy meter which has been installed on the main pole of source supply.

how to wire 3phase energy meter

how to wire a 3-phase kwh meter?
How to install a Three Phase kWh Energy meter?

In the above graphics and diagrams,

R = RED Phase / Live Wire from the source supply voltage

Y = YELLOW Phase / Live Wire from the source supply voltage

B = BLUE Phase / Live Wire from the source supply voltage

Line or IN =  Incoming Phase / live or Neutral from the source supply voltage

OUT = Out going Phase / live or Neutral to the home main distribution board.

Warning: This example shows the most common used arrangement in the world, but there are variations as well in some areas. In different countries RYB, ABC (old standard) or UVW (newer standard) and maybe others (as Electrical Wiring Color Codes) are used and are equivalent. The setting may be different in other type of kWh or energy meter in different locations around the world. For safety. Please contact to the supply and service provider to confirm the connection type before installation.

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Electrical Technology

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  1. Becca@Electricians In Sydney says:

    Everything is a very clear explanation of concerns. Detailed actually. The site is really useful, thank you very much for sharing.

    1. Electrical Technology says:

      Thanx for your appreciation.

    2. Electrical Technology says:

      Thank you for encouraging

    3. Anonymous says:

      you are doing a great job.

    4. Hafiz Amanullah says:

      This field is very good please add to me. Thanks.

    1. Electrical Technology says:

      Thanks @ Wasim Khan

  2. Indeed, it's an educational site dat impacts knowledge.

    1. Electrical Technology says:

      Dear JessyP @ Thanks for appreciation..:)

  3. Anonymous says:

    Wat about the Single phase KWH meter?

  4. Anonymous says:

    i love youuuuuuuuuuuu wasim khan. thanx for this and all your guidances. thank you…..thank you veryyyyy much.

    1. Electrical Technology says:

      Thanks for appreciation :)

  5. Reuben zigah says:

    Thx u for such connection.i have a problem with the connection of a changeover switch please help me

  6. Reuben zigah says:

    Thx for such 3phase connection.i have a a problem of connecting a changeover switch please help me

    1. Electrical Technology says:

      Check Change Over Switch connection with UPS and Generator in the above Tab " Electrical Wiring"

  7. A very usefull site, now i’m addicted to this place every time i have a question this is the first place i check
    Thank you guys May Allah reward you for this amazing job you’re doing.

  8. It is possible to connect 2 3phase easy pay meter to 1 3phase change over switch

    1. Electrical Technology says:

      Please tell more about the story…

  9. Thank you for this posting. How can indicator lights can be wired to indicate the phases that has light close to the meter. Pls show the connection diagram. Thanks

  10. pls add indicator lights to each of the phases and show the wiring. This will allow monitoring of which phase has electricity

  11. Rakesh N gowda says:

    plz plz upload the 3phase old type electrical energy meter circuits diagram and parts images

  12. kamran riaz says:

    i am elctrical student plz upload ups with battry conacation and solar plates conaction cantroler with battry
    and kindly upload 3phase house waring .

  13. Ratan kumar singh says:

    Diar sar how to joind anarjy mitar in 3 phas line about 100 Ampairs. Plis simpal daiyagaram. Help mi sar. I am a new electrician.

  14. How would you wire it if it’s only 3-phase 3-wire(which should be a delta connected power source)? Will you just disregard terminals 7 & 8?

  15. Mohamed Soudani says:


  16. R K Gupta says:

    Picture and connections absolutely clear and understood by any one.

  17. Jayanta Chatterjee says:

    Sir I want to know inside the room what clearance should I keep for Installation of a 11kv HT VCB as per IE rules, please answer which will be very helpful to me and also if you published all the I.E rules which will help us.anta

    Yours servant

  18. Hii connections are nicely expained.
    which energy meter do you suggest for measuring power in which load carries very high current(around 1500A).
    And if we want exact amount of power consumption what can be done?

  19. Vicente P S Croes says:

    Installation instructions for SIEMENS KWh three phase meter 7CA5431 Nr. 56523085

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