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Shower
Cooker
Sockets
Sockets
Lights
Lights
Smoke
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.
Option
1
Guide to
| 17th Edition Consumer Units
15
“Selecting RCBO’s for every
outgoing circuit meets all
relevant regulations”