No, the 3C+E will be connected to:
The L input on the switch, brown PL
the SL output on the switch, black SL sleeved brown
the two Neutral wires connected together, blue and grey sleeved blue and
the two Earth wires connected together.
The L input on the switch, brown PL
the SL output on the switch, black SL sleeved brown
the two Neutral wires connected together, blue and grey sleeved blue and
the two Earth wires connected together.