Sub main earthing

Discussion in 'Electricians' Talk' started by Shippers, Jul 21, 2021.

  1. Shippers

    Shippers New Member


    How do I terminate a 25 mm core from a 6493x, acting as the incoming earth from a switch fuse, into a consumer unit whose earth bar only has 16mm terminals.

  2. Jimbo

    Jimbo Screwfix Select

  3. Ind spark

    Ind spark Screwfix Select

    Google reducing lug.

    I'd put you a link up if I knew how :oops:
  4. nigel willson

    nigel willson Screwfix Select

  5. Bob Rathbone

    Bob Rathbone Screwfix Select

    Assuming that the CCU is metal, just crimp a lug on the cable, drill a hole in the metal CCU, clean off the paint and bolt the lug to the metal CCU.
  6. jayktee

    jayktee New Member

    I had the same problem a couple of weeks ago, I split the seven strands 3 and 4 between two adjacent 16mm holes, I was considering removing the earth bar and drilling it out for the 25mm core but thought that there may not be enough meat left.
    The Happy Builder likes this.

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