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Different type MCD but same brand

Discussion in 'Electrics UK' started by M1AK, 8 May 2010.

  1. M1AK

    M1AK

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    Hi all,

    We need to fit a additional MCD to our existing GE consumer unit, which has all Type E style MCDs on it. This additional MCD is for underfloor heating that we need to wire in. I've been told to only fit one of the same brand so I have got a 20A GE Type B MCD but its a Type SP.

    Is it OK to fit this?
     
  2. PrinceofDarkness

    PrinceofDarkness

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    "SP" isn't an actual 'type' of MCB. It merely denotes that it's a single pole (SP) device. The actual 'type' (for domestic innstallations) is Type B.

    If you have a GE board and a compatible MCB, use it........


    Lucia.
     
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  4. sparkwright

    sparkwright

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    Have you made provision for 30 mA RCD protection on this circuit?
     
  5. M1AK

    M1AK

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    Thanks for the replies. I'm not sure how to find out if its compatible but it does fit fine and is the same brand so am I right to assume that the MCD will be OK? It looks a little different from the front visually but other than that its similar to the others.

    Sparkwright - yes there will be a 30mA passive RCD Spur within this circuit also.
     
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  7. sparkwright

    sparkwright

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    It sounds like your MCB probably is compatible with the consumer unit, if it's the same make and it fits comfortably.

    Send pictures if in any doubt.
     
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    DIYnot Local

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