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14
Consumer Unit Arrangements
Option 1
Main Switch with RCBO’s On All Circuits
A standard main switch disconnector controlled consumer unit could
be used with every circuit having individual RCD protection at 30mA.
This could be achieved by selecting RCBO’s for every outgoing
circuit instead of the usual MCB’s. A fault on any circuit would not
affect other circuits and hence all relevant regulations would be met
by such a design.
An example is shown over page.
Selecting RCBO’s for
every outgoing circuit
meets all relevant
regulations
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”