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Home / Download Center / Electrical Software / Selection Of MCCB, ELCB For Main-Branch Circuit (MS Excel Spreadsheet)
Selection Of MCCB, ELCB For Main-Branch Circuit
Selection Of MCCB, ELCB For Main-Branch Circuit

Selection of main and branch circuit breakers //

Spreadsheet calculates the following:

  • Size and type of main MCCB, RCCB and ELCB for continious and non-continious load
  • Sensitivity of MCCB, RCCB and ELCB
  • Size of cable
  • Size and type of sub-circuit MCCB and MCB for continious and non-continious load
  • Calculate total load
  • Calculate main and branch circuit current.
Software:Selection of MCCB, ELCB for main-branch circuit – MS Excel Spreadsheet
Version:22.8.2012 New
Developer:Jignesh Parmar
Size:147 Kb
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Selection of MCCB, ELCB for main-branch circuit

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  1. Ayappa Shetty
    Jun 03, 2020

    Im a Electrical Engineer.I found your site very helpfull and has very useful contents.

  2. James Khalil
    Oct 02, 2019

    1. You should not include FUR (Future) load when sizing Over Current Protection Device (OCPD) for a specific load. The size of the OCPD should Be to protect the current load, otherwise the OCPD is NOT protected.

    2. the NEC FLA of motor loads are HP driven and not KVA driven. Also the circuit trip amps can be up to 250% of the FLA. see NEC Table 430-250

  3. Debmalya Dasgupta
    Sep 27, 2019

    Hi Jignesh,
    I am working in a project where there are 12 nos. LV (415V) motors fed from MCC located about 1.1kM away from the motors. There are LCS located near the motors.understand from another project that in such long distance cases, when a stop signal is given from LCS, the contactor remains picked up due to the stored energy due to cable capacitance. Kindly advise some mitigation measures in this kind of situation to avoid mal-operation.

  4. Abdelkawy Almasry
    Sep 26, 2019

    Really its very excellent and good explanation.

  5. biji mathew
    Jul 01, 2018

    useless … the spreadsheet is not working ….

  6. mamad azad
    Mar 26, 2017

    hi.pleaze pass???

  7. Roman Bogdanov
    Dec 29, 2016

    Hi, How I can get a password for datasheets?

  8. Chanh
    Aug 25, 2016

    I don’t understand some symbol in calculator spreadsheet. Would you like to send me a table for these symbol. I hope your reply soon.
    Thanks and best regards.

  9. Dharmendra
    May 21, 2016


    The Selection of MCCB spreadsheet I can not select more than 120 sq mm cable size , so please update this sheet for other size of cable

  10. Ala Sharief
    May 14, 2016

    The excel file shown above is not calculating well for cable selection , i make test for 3 phase load with current 474 A , and i set cable size 10 mm^2 and excel sheet still give that cable design is O.K. ??!!!!

  11. ahmed abozied
    Feb 20, 2016

    pleas how to open XLS file ,iam try do not open

  12. Hor Chin EK
    Oct 14, 2015

    may I have the password?

  13. gaspar
    Aug 25, 2015

    can i have the password plz? ty

  14. jose
    Jul 23, 2015

    tripping amp rating is wrong no decimal point ..
    overall good work..

  15. kishore
    Aug 11, 2014

    Sir, trying to work with the XL, can’t access, it’s pass word protected,
    can i have the password

  16. Kelvin Wong
    Jul 21, 2014


    I have downloaded this excel worksheet but I cannot access to it as it is being protected by a password can I have the password so I can start to use this excel work sheet?

  17. NPT Châu
    Jun 04, 2014

    Thank Ad very much!

  18. Abdul Wahid
    Jun 03, 2014

    Thanks alot

  19. sudhir
    Mar 27, 2014

    How to download this file

  20. Patrick Weerasinghe
    Feb 10, 2014

    I down loaded the XL on MCCB selection but could not use as the message comes that it is write protected

  21. henry02
    Oct 14, 2013

    Thanks a lots. Excellent !!!

  22. nmr
    Jun 17, 2013

    For tension free live and Stres free life pl learn Rajayoga-meditation.
    My dear brothers and Sisters, this is God message to all of u,
    Pl see where God/Shiva Paramata/Our father/ Father of Jesus/Almight authority/Supreme soul is teaching rajayoga (mediation), give real peace, real happy and ever young. Shiva paramata, is going to establish a purity/diety world for us. Co-operate with our father-lord shiva to establish a new diety world for us, for our childrens etc,., Now or Never… no god no peace…. Know god and know peace. Pl do not neglect this message.. Please co-operative with god lord shiva paramata and give u r internet technolozy for establishment of better world tomorrow.
    U r well wisher.
    God’s messanger

  23. Edvard
    Nov 27, 2011

    I agree, excellent explanation.

  24. Eagle2011
    Nov 27, 2011

    tnx , they are very useful

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