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Can you replace just the RCD, instead of whole consumer unit?

Former Community Member
Former Community Member
My apartment failed it's EICR due to the electrician not being able to trip the RCD in the required time.  I am told that the RCD cannot be replaced and a new metal consumer unit must be installed at a quote of £1180.  The apartment was built in 2003 and seems overly wasteful to ditch the whole unit, however I am not an electrician so would welcome some guidance please before I commit to this remedial action.


This is the RCD currently fitted:
5760S | MK 63 A RCD Switch, Trip Sensitivity 30mA | RS Components (rs-online.com)


It appears it worked within spec for above 30mA, but failed for below, if that helps with whether the whole consumer unit must be replaced.  See report.
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  • 0
    The two main switches is not cause for concern one will be 24hr supply the other the off peak - at least both isolate in the same place so sort of regs compliant.


    Well spotted, I agree the labels suggest something is up and the RCD has been moved along at some point, or the original label writer was unable to count positions.


    A photo with the lid off would probably reveal more - it may indeed not trip on a plug in tester just because it is now just a decorative.feature and the sockets are not fed through it.



    Mike.
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  • 0
    The two main switches is not cause for concern one will be 24hr supply the other the off peak - at least both isolate in the same place so sort of regs compliant.


    Well spotted, I agree the labels suggest something is up and the RCD has been moved along at some point, or the original label writer was unable to count positions.


    A photo with the lid off would probably reveal more - it may indeed not trip on a plug in tester just because it is now just a decorative.feature and the sockets are not fed through it.



    Mike.
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