Guide to 17th Edition Consumer Units

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SocketsCooker LightsSocketsShower LightsSmoke
Option 3 Split Load 3 RCCB Board
This arrangement provides a 30mA
RCCB for the smoke detector circuit
which could also supply other circuits
e.g. lighting, and combines the rest of
the circuits across two further 30mA
RCCB’s. Careful arrangements of the
circuits can reduce the likelihood of
nuisance tripping, thereby limiting the
inconvenience or potential hazards that
a loss of supply can cause by reducing
the number of circuits affected.
Guide to | 17th Edition Consumer Units 17
“This arrangement provides an RCD for
the smoke detector circuit which could
also supply other circuits e.g. lighting”